Image noise reduction is an important task in the field of computer vision and image processing. Traditional noise filtering methods may be limited by their ability to preserve image details. The purpose of this work is to study and apply deep learning methods to reduce noise in images. The main tasks of noise reduction in images are the removal of Gaussian noise, salt and pepper noise, noise of lines and stripes, noise caused by compression, and noise caused by equipment defects. In this paper, such noises as the removal of raindrops, dust, and traces of snow on the images were considered. In the work, complex patterns and high noise density were studied. A deep learning algorithm, such as the decomposition method with and without preprocessing, and their effectiveness in applying noise reduction are considered. It is expected that the results of the study will confirm the effectiveness of deep learning methods in reducing noise in images. This may lead to the development of more accurate and versatile image processing methods capable of preserving details and improving the visual quality of images in various fields, including medicine, photography, and video.
Noisy image enhancements using deep learning techniquesIJECEIAES
This article explores the application of deep learning techniques to improve the accuracy of feature enhancements in noisy images. A multitasking convolutional neural network (CNN) learning model architecture has been proposed that is trained on a large set of annotated images. Various techniques have been used to process noisy images, including the use of data augmentation, the application of filters, and the use of image reconstruction techniques. As a result of the experiments, it was shown that the proposed model using deep learning methods significantly improves the accuracy of object recognition in noisy images. Compared to single-tasking models, the multi-tasking model showed the superiority of this approach in performing multiple tasks simultaneously and saving training time. This study confirms the effectiveness of using multitasking models using deep learning for object recognition in noisy images. The results obtained can be applied in various fields, including computer vision, robotics, automatic driving, and others, where accurate object recognition in noisy images is a critical component.
An Efficient Image Denoising Approach for the Recovery of Impulse NoisejournalBEEI
Image noise is one of the key issues in image processing applications today. The noise will affect the quality of the image and thus degrades the actual information of the image. Visual quality is the prerequisite for many imagery applications such as remote sensing. In recent years, the significance of noise assessment and the recovery of noisy images are increasing. The impulse noise is characterized by replacing a portion of an image’s pixel values with random values Such noise can be introduced due to transmission errors. Accordingly, this paper focuses on the effect of visual quality of the image due to impulse noise during the transmission of images. In this paper, a hybrid statistical noise suppression technique has been developed for improving the quality of the impulse noisy color images. We further proved the performance of the proposed image enhancement scheme using the advanced performance metrics.
Pattern Approximation Based Generalized Image Noise Reduction Using Adaptive ...IJECEIAES
The problem of noise interference with the image always occurs irrespective of whatever precaution is taken. Challenging issues with noise reduction are diversity of characteristics involved with source of noise and in result; it is difficult to develop a universal solution. This paper has proposed neural network based generalize solution of noise reduction by mapping the problem as pattern approximation. Considering the statistical relationship among local region pixels in the noise free image as normal patterns, feedforward neural network is applied to acquire the knowledge available within such patterns. Adaptiveness is applied in the slope of transfer function to improve the learning process. Acquired normal patterns knowledge is utilized to reduce the level of different type of noise available within an image by recorrection of noisy patterns through pattern approximation. The proposed restoration method does not need any estimation of noise model characteristics available in the image not only that it can reduce the mixer of different types of noise efficiently. The proposed method has high processing speed along with simplicity in design. Restoration of gray scale image as well as color image has done, which has suffered from different types of noise like, Gaussian noise, salt &peper, speckle noise and mixer of it.
A Novel Framework For Preprocessing Of Breast Ultra Sound Images By Combining...IRJET Journal
The document presents a novel framework for preprocessing breast ultrasound images that combines non-local means filtering and morphological operations. Non-local means filtering is used to reduce speckle noise, which is a significant issue for ultrasound images. Then morphological techniques are applied to enhance the noise-reduced images. The framework achieves peak signal-to-noise ratios of 60-80 decibels when tested on real breast ultrasound images. It provides an effective method for preprocessing ultrasound images to reduce noise and improve image quality.
Image Denoising of various images Using Wavelet Transform and Thresholding Te...IRJET Journal
The document discusses image denoising using wavelet transforms and thresholding techniques. It first provides background on image denoising and wavelet transforms. It then reviews several existing studies that used wavelet transforms like Haar, db4, and sym4 along with thresholding to denoise images corrupted with Gaussian and salt-and-pepper noise. Next, it describes the proposed denoising algorithm which involves adding noise to test images, decomposing the noisy images using different wavelet transforms, applying thresholding, and calculating metrics like PSNR to evaluate performance. The algorithm aims to eliminate noise in the wavelet domain using soft and hard thresholding followed by reconstruction.
Implemented an Advanced 2D Otsu method for image segmentation which solved the problems of the traditional Otsu method such as sensitive to noise and shadow. Wrote and debugged the program in C and VisionX system.
Strengthen Fuzzy Pronouncement for Impulse Noise Riddance Method for Images B...IRJET Journal
This document proposes a 4-stage neural network method for removing impulse noise from images. It begins with a 1st stage additive neural network to cleanly remove noise while preserving uncorrupted data. The 2nd stage uses fuzzy decision rules inspired by the human visual system to compensate for blurring and details lost from median filtering. A 3rd neural network is then used to enhance regions determined by the fuzzy rules to have higher visual importance. The goal is to remove impulse noise cleanly without blurring edges, by dividing the method into noise removal and subsequent image enhancement stages using neural networks and fuzzy logic.
This document describes a two-stage technique for removing impulse noise from digital images using neural networks and fuzzy logic. In the first stage, a neural network is used to detect and remove noise from the image cleanly while preserving image details. In the second stage, fuzzy decision rules inspired by the human visual system are used to enhance image quality by compensating for blurring or destruction caused in the first stage. The goal is to remove noise cleanly without blurring edges while enhancing the overall visual quality of the processed image.
Noisy image enhancements using deep learning techniquesIJECEIAES
This article explores the application of deep learning techniques to improve the accuracy of feature enhancements in noisy images. A multitasking convolutional neural network (CNN) learning model architecture has been proposed that is trained on a large set of annotated images. Various techniques have been used to process noisy images, including the use of data augmentation, the application of filters, and the use of image reconstruction techniques. As a result of the experiments, it was shown that the proposed model using deep learning methods significantly improves the accuracy of object recognition in noisy images. Compared to single-tasking models, the multi-tasking model showed the superiority of this approach in performing multiple tasks simultaneously and saving training time. This study confirms the effectiveness of using multitasking models using deep learning for object recognition in noisy images. The results obtained can be applied in various fields, including computer vision, robotics, automatic driving, and others, where accurate object recognition in noisy images is a critical component.
An Efficient Image Denoising Approach for the Recovery of Impulse NoisejournalBEEI
Image noise is one of the key issues in image processing applications today. The noise will affect the quality of the image and thus degrades the actual information of the image. Visual quality is the prerequisite for many imagery applications such as remote sensing. In recent years, the significance of noise assessment and the recovery of noisy images are increasing. The impulse noise is characterized by replacing a portion of an image’s pixel values with random values Such noise can be introduced due to transmission errors. Accordingly, this paper focuses on the effect of visual quality of the image due to impulse noise during the transmission of images. In this paper, a hybrid statistical noise suppression technique has been developed for improving the quality of the impulse noisy color images. We further proved the performance of the proposed image enhancement scheme using the advanced performance metrics.
Pattern Approximation Based Generalized Image Noise Reduction Using Adaptive ...IJECEIAES
The problem of noise interference with the image always occurs irrespective of whatever precaution is taken. Challenging issues with noise reduction are diversity of characteristics involved with source of noise and in result; it is difficult to develop a universal solution. This paper has proposed neural network based generalize solution of noise reduction by mapping the problem as pattern approximation. Considering the statistical relationship among local region pixels in the noise free image as normal patterns, feedforward neural network is applied to acquire the knowledge available within such patterns. Adaptiveness is applied in the slope of transfer function to improve the learning process. Acquired normal patterns knowledge is utilized to reduce the level of different type of noise available within an image by recorrection of noisy patterns through pattern approximation. The proposed restoration method does not need any estimation of noise model characteristics available in the image not only that it can reduce the mixer of different types of noise efficiently. The proposed method has high processing speed along with simplicity in design. Restoration of gray scale image as well as color image has done, which has suffered from different types of noise like, Gaussian noise, salt &peper, speckle noise and mixer of it.
A Novel Framework For Preprocessing Of Breast Ultra Sound Images By Combining...IRJET Journal
The document presents a novel framework for preprocessing breast ultrasound images that combines non-local means filtering and morphological operations. Non-local means filtering is used to reduce speckle noise, which is a significant issue for ultrasound images. Then morphological techniques are applied to enhance the noise-reduced images. The framework achieves peak signal-to-noise ratios of 60-80 decibels when tested on real breast ultrasound images. It provides an effective method for preprocessing ultrasound images to reduce noise and improve image quality.
Image Denoising of various images Using Wavelet Transform and Thresholding Te...IRJET Journal
The document discusses image denoising using wavelet transforms and thresholding techniques. It first provides background on image denoising and wavelet transforms. It then reviews several existing studies that used wavelet transforms like Haar, db4, and sym4 along with thresholding to denoise images corrupted with Gaussian and salt-and-pepper noise. Next, it describes the proposed denoising algorithm which involves adding noise to test images, decomposing the noisy images using different wavelet transforms, applying thresholding, and calculating metrics like PSNR to evaluate performance. The algorithm aims to eliminate noise in the wavelet domain using soft and hard thresholding followed by reconstruction.
Implemented an Advanced 2D Otsu method for image segmentation which solved the problems of the traditional Otsu method such as sensitive to noise and shadow. Wrote and debugged the program in C and VisionX system.
Strengthen Fuzzy Pronouncement for Impulse Noise Riddance Method for Images B...IRJET Journal
This document proposes a 4-stage neural network method for removing impulse noise from images. It begins with a 1st stage additive neural network to cleanly remove noise while preserving uncorrupted data. The 2nd stage uses fuzzy decision rules inspired by the human visual system to compensate for blurring and details lost from median filtering. A 3rd neural network is then used to enhance regions determined by the fuzzy rules to have higher visual importance. The goal is to remove impulse noise cleanly without blurring edges, by dividing the method into noise removal and subsequent image enhancement stages using neural networks and fuzzy logic.
This document describes a two-stage technique for removing impulse noise from digital images using neural networks and fuzzy logic. In the first stage, a neural network is used to detect and remove noise from the image cleanly while preserving image details. In the second stage, fuzzy decision rules inspired by the human visual system are used to enhance image quality by compensating for blurring or destruction caused in the first stage. The goal is to remove noise cleanly without blurring edges while enhancing the overall visual quality of the processed image.
noise remove in image processing by fuzzy logicRucku
This document summarizes a research paper that proposes a two-stage technique for removing impulse noise from digital images using neural networks and fuzzy logic. In the first stage, a neural network is used to detect and remove noise while preserving image details. In the second stage, fuzzy decision rules inspired by the human visual system are used to further process pixels and enhance image quality, especially in sensitive regions. The technique aims to remove noise cleanly without blurring edges or destroying important information. It is presented as an improvement over conventional noise removal methods.
An Image Enhancement Approach to Achieve High Speed using Adaptive Modified B...TELKOMNIKA JOURNAL
For real time application scenarios of image processing, satellite imaginary has grown more interest by researches due to the informative nature of image. Satellite images are captured using high quality cameras. These images are captured from space using on-board cameras. Wrong ISO setting, camera vibrations or wrong sensory setting causes noise. The degraded image can cause less efficient results during visual perception which is a challenging issue for researchers. Another reason is that noise corrupts the image during acquisition, transmission, interference or dust particles on the scanner screen of image from satellite to the earth stations. If quality degraded images are used for further processing then it may result in wrong information extraction. In order to cater this issue, image filtering or denoising approach is required.
Since remote sensing images are captured from space using on-board camera which requires high speed operating device which can provide better reconstruction quality by utilizing lesser power consumption. Recently various approaches have been proposed for image filtering. Key challenges with these approaches are reconstruction quality, operating speed, image quality by preserving information at edges on image.
Proposed approach is named as modified bilateral filter. In this approach bilateral filter and kernel schemes are combined. In order to overcome the drawbacks, modified bilateral filtering by using FPGA to perform the parallelism process for denoising is implemented.
Noise Level Estimation for Digital Images Using Local Statistics and Its Appl...TELKOMNIKA JOURNAL
In this paper, an automatic estimation of additive white Gaussian noise technique is proposed. This technique is built according to the local statistics of Gaussian noise. In the field of digital signal processing, estimation of the noise is considered as pivotal process that many signal processing tasks relies on. The main aim of this paper is to design a patch-based estimation technique in order to estimate the noise level in natural images and use it in blind image removal technique. The estimation processes is utilized selected patches which is most contaminated sub-pixels in the tested images sing principal component analysis (PCA). The performance of the suggested noise level estimation technique is shown its superior to state of the art noise estimation and noise removal algorithms, the proposed algorithm produces the best performance in most cases compared with the investigated techniques in terms of PSNR, IQI and the visual perception.
IRJET - Contrast and Color Improvement based Haze Removal of Underwater Image...IRJET Journal
This document proposes a method for removing haze from underwater images using fusion techniques. It involves three main steps:
1. Removal of haze from the input underwater image using a water shield filter to extract a dehazed image.
2. Denoising the dehazed image using a sequential algorithm to compensate for uneven lighting and enhance image features.
3. Fusing the dehazed and denoised images to produce a clear output image with both haze and noise removed.
The method aims to improve underwater image visibility and contrast correction in a simple and effective manner. Evaluation on sample images demonstrates reduced haze and artifacts after processing.
IRJET- Heuristic Approach for Low Light Image Enhancement using Deep LearningIRJET Journal
This document discusses a deep learning approach for enhancing low light images. It begins by describing the challenges of low light imaging such as low signal-to-noise ratio and increased noise. It then reviews existing image enhancement and denoising techniques that have limitations under extreme low light conditions. The proposed approach uses a convolutional neural network trained on a dataset of low and high exposure image pairs to learn an end-to-end image processing pipeline directly from raw sensor data. This aims to better handle noise and color biases compared to traditional pipelines. The goals are to enhance short exposure images while suppressing noise and applying proper color transformations.
This document summarizes an article that proposes an adaptive nonlinear filtering technique for image restoration. It begins by discussing common types of image noise and degradation models. It then discusses existing median filtering and adaptive filtering techniques that aim to remove noise while preserving edges. The paper proposes a new adaptive length median/mean algorithm that can simultaneously remove noise artifacts like impulses, strip lines, drop lines, band missing, and blotches. It detects corrupted pixels and evaluates new pixels to replace them. The algorithm switches between median and mean filtering depending on noise levels to better preserve details. The performance of the algorithm is evaluated based on metrics like mean square error and peak signal-to-noise ratio. The algorithm is found to outperform standard techniques in
1. The document proposes a new method for denoising positron flow field images using a generative adversarial network (GAN) with zero-shot learning. This approach can denoise images with small datasets by extracting features from the images themselves.
2. A GAN framework is used, where the generator denoises the images and the discriminator tries to distinguish real from generated images. A new loss function is introduced that combines perceptual and edge losses to preserve image details.
3. Experimental results show the method can reduce noise while retaining key image information, achieving good performance for industrial positron flow field imaging applications with limited data.
This document summarizes a research paper that proposes a method for denoising remote sensing images using a combination of second order and fourth order partial differential equations (PDEs). It begins by explaining how noise is introduced in images and why denoising is important. It then discusses existing denoising methods using second order and fourth order PDEs individually and their limitations. The proposed method combines the two approaches to reduce both the blocky effect of second order PDEs and the speckle effect of fourth order PDEs. Simulation results show the combined method achieves better peak signal-to-noise and signal-to-noise ratios compared to the individual methods.
Random Valued Impulse Noise Elimination using Neural FilterEditor IJCATR
A neural filtering technique is proposed in this paper for restoring the images extremely corrupted with random valued impulse noise. The proposed intelligent filter is carried out in two stages. In first stage the corrupted image is filtered by applying an asymmetric trimmed median filter. An asymmetric trimmed median filtered output image is suitably combined with a feed forward neural network in the second stage. The internal parameters of the feed forward neural network are adaptively optimized by training of three well known images. This is quite effective in eliminating random valued impulse noise. Simulation results show that the proposed filter is superior in terms of eliminating impulse noise as well as preserving edges and fine details of digital images and results are compared with other existing nonlinear filters.
An overview of the fundamental approaches that yield several image denoising ...TELKOMNIKA JOURNAL
This document provides an overview of fundamental approaches to image denoising. It discusses spatial domain filtering methods like mean and median filters that operate directly on pixel values. It also covers transform domain methods that convert the image to another domain like frequency before filtering, using tools like wavelets, curvelets and BM3D. Hybrid methods combining spatial and transform techniques are also presented. The document aims to introduce these approaches to facilitate further research on solving noise problems in images.
A Novel Adaptive Denoising Method for Removal of Impulse Noise in Images usin...iosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
This document proposes a novel adaptive denoising method for removing impulse noise from images using principal component analysis. The method has two major components: (1) estimating the impulse noise using PCA, which reduces the image dimensions without much information loss, and (2) removing the estimated noise using an edge-preserving filter. Experimental results show the proposed technique performs better than previous lower complexity methods in terms of quantitative and visual quality evaluations. The method is also applicable to other noise types and color images.
IRJET - Change Detection in Satellite Images using Convolutional Neural N...IRJET Journal
The document describes a method for detecting changes in satellite images using convolutional neural networks. It discusses how existing methods have limitations in terms of accuracy and speed. The proposed method uses preprocessing techniques like median filtering and non-local means filtering. It then applies convolutional neural networks to extracted compressed image features and classify detected changes. The method forms a difference image without explicitly training on change images, making it unsupervised. Testing achieved 91.63% accuracy in change detection, showing the effectiveness of the proposed convolutional neural network approach.
Abstract: These days analysing patient data in the form of medical images to perform diagnose while doing detection
and prediction of a disease has emerged as a biggest research challenge. All these medical images can be in the form of
X-RAY, CT scan, MRI, PET and SPECT. These images carry minute information about heart, brain, nerves etc within
themselves. It may happen that these images get corrupted due to noise while capturing them. This makes the complete
image interpretation process very difficult and inaccurate. It has been found that the accuracy rate of existing method is
very less so improvement is required to make them more accurate. This paper proposes a Machine Learning Model based
on Convolutional Neural Network (CNN) that will contain all the filters required to de-noise MRI or USI Images. This
model will have same error rate efficiency like those of data mining techniques which radiologists were interested in. The
filters used in the proposed work are namely Weiner Filter, Gaussian Filter, Median Filter that are capable of removing
most common noises such as Salt and Pepper, Poisson, Speckle, Blurred, Gaussian existing in MRI images in Grey Scale
and RGB Scale.
Keywords: Convolution Neural Network, Denoising, Machine Learning, Deep Learning, Image Noise, Filters
A HYBRID FILTERING TECHNIQUE FOR ELIMINATING UNIFORM NOISE AND IMPULSE NOIS...sipij
A new hybrid filtering technique is proposed to improving denoising process on digital images.
This technique is performed in two steps. In the first step, uniform noise and impulse noise is
eliminated using decision based algorithm (DBA). Image denoising process is further improved
by an appropriately combining DBA with Adaptive Neuro Fuzzy Inference System (ANFIS) at
the removal of uniform noise and impulse noise on the digital images. Three well known images
are selected for training and the internal parameters of the neuro-fuzzy network are adaptively
optimized by training. This technique offers excellent line, edge, and fine detail preservation
performance while, at the same time, effectively denoising digital images. Extensive simulation
results were realized for ANFIS network and different filters are compared. Results show that
the proposed filter is superior performance in terms of image denoising and edges and fine
details preservation properties.
FusIon - On-Field Security and Privacy Preservation for IoT Edge Devices: Con...jamesinniss
FusIon - On-Field Security and Privacy Preservation for IoT Edge Devices: Concurrent Defense Against Multiple types of Hardware Trojan Attacks
Get more info here:
>>> https://bit.ly/38FXJav
Robust foreground modelling to segment and detect multiple moving objects in ...IJECEIAES
This document summarizes a research paper that proposes a robust foreground modeling method to segment and detect multiple moving objects in videos. The proposed method uses a running average technique to model the background and subtract it from video frames to detect foreground objects. Morphological operations like dilation and erosion are applied to reduce noise and merge connected regions. Convex hull processing is also used to define object boundaries more clearly. The method was tested on standard video datasets and achieved better performance than other techniques in segmenting objects under various challenging conditions like illumination changes and occlusion. Experimental results demonstrated high precision, recall and specificity based on comparisons with ground truth data.
An overview of multi-filters for eliminating impulse noise for digital imagesTELKOMNIKA JOURNAL
An image through the digitization process is referred to as a digital image. The quality of the digital image may be degenerating due to interferences on the acquisition, transmission, extraction, etc. This attracted the attention of many researchers to study the causes of damage to the information in the image. In addition to finding cause of image damage, the researchers also looking for ways to overcome this problem. There are many filtering techniques that have been introduced to deal the damage to the information in the image. In addition to eliminating noise from the image, filtering techniques also aims to maintain the originality of the features in the image. Among the many research papers on image filtering there is a lack of review papers which are an important to facilitate researchers in understanding the differences in each filtering technique. Additionally, it helps researchers determine the direction of research conducted based on the results of previous research. Therefore, this paper presents a review of several filtering techniques that have been developed so far.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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noise remove in image processing by fuzzy logicRucku
This document summarizes a research paper that proposes a two-stage technique for removing impulse noise from digital images using neural networks and fuzzy logic. In the first stage, a neural network is used to detect and remove noise while preserving image details. In the second stage, fuzzy decision rules inspired by the human visual system are used to further process pixels and enhance image quality, especially in sensitive regions. The technique aims to remove noise cleanly without blurring edges or destroying important information. It is presented as an improvement over conventional noise removal methods.
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For real time application scenarios of image processing, satellite imaginary has grown more interest by researches due to the informative nature of image. Satellite images are captured using high quality cameras. These images are captured from space using on-board cameras. Wrong ISO setting, camera vibrations or wrong sensory setting causes noise. The degraded image can cause less efficient results during visual perception which is a challenging issue for researchers. Another reason is that noise corrupts the image during acquisition, transmission, interference or dust particles on the scanner screen of image from satellite to the earth stations. If quality degraded images are used for further processing then it may result in wrong information extraction. In order to cater this issue, image filtering or denoising approach is required.
Since remote sensing images are captured from space using on-board camera which requires high speed operating device which can provide better reconstruction quality by utilizing lesser power consumption. Recently various approaches have been proposed for image filtering. Key challenges with these approaches are reconstruction quality, operating speed, image quality by preserving information at edges on image.
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In this paper, an automatic estimation of additive white Gaussian noise technique is proposed. This technique is built according to the local statistics of Gaussian noise. In the field of digital signal processing, estimation of the noise is considered as pivotal process that many signal processing tasks relies on. The main aim of this paper is to design a patch-based estimation technique in order to estimate the noise level in natural images and use it in blind image removal technique. The estimation processes is utilized selected patches which is most contaminated sub-pixels in the tested images sing principal component analysis (PCA). The performance of the suggested noise level estimation technique is shown its superior to state of the art noise estimation and noise removal algorithms, the proposed algorithm produces the best performance in most cases compared with the investigated techniques in terms of PSNR, IQI and the visual perception.
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This document proposes a method for removing haze from underwater images using fusion techniques. It involves three main steps:
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2. Denoising the dehazed image using a sequential algorithm to compensate for uneven lighting and enhance image features.
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This document discusses a deep learning approach for enhancing low light images. It begins by describing the challenges of low light imaging such as low signal-to-noise ratio and increased noise. It then reviews existing image enhancement and denoising techniques that have limitations under extreme low light conditions. The proposed approach uses a convolutional neural network trained on a dataset of low and high exposure image pairs to learn an end-to-end image processing pipeline directly from raw sensor data. This aims to better handle noise and color biases compared to traditional pipelines. The goals are to enhance short exposure images while suppressing noise and applying proper color transformations.
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Random Valued Impulse Noise Elimination using Neural FilterEditor IJCATR
A neural filtering technique is proposed in this paper for restoring the images extremely corrupted with random valued impulse noise. The proposed intelligent filter is carried out in two stages. In first stage the corrupted image is filtered by applying an asymmetric trimmed median filter. An asymmetric trimmed median filtered output image is suitably combined with a feed forward neural network in the second stage. The internal parameters of the feed forward neural network are adaptively optimized by training of three well known images. This is quite effective in eliminating random valued impulse noise. Simulation results show that the proposed filter is superior in terms of eliminating impulse noise as well as preserving edges and fine details of digital images and results are compared with other existing nonlinear filters.
An overview of the fundamental approaches that yield several image denoising ...TELKOMNIKA JOURNAL
This document provides an overview of fundamental approaches to image denoising. It discusses spatial domain filtering methods like mean and median filters that operate directly on pixel values. It also covers transform domain methods that convert the image to another domain like frequency before filtering, using tools like wavelets, curvelets and BM3D. Hybrid methods combining spatial and transform techniques are also presented. The document aims to introduce these approaches to facilitate further research on solving noise problems in images.
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IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
This document proposes a novel adaptive denoising method for removing impulse noise from images using principal component analysis. The method has two major components: (1) estimating the impulse noise using PCA, which reduces the image dimensions without much information loss, and (2) removing the estimated noise using an edge-preserving filter. Experimental results show the proposed technique performs better than previous lower complexity methods in terms of quantitative and visual quality evaluations. The method is also applicable to other noise types and color images.
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Abstract: These days analysing patient data in the form of medical images to perform diagnose while doing detection
and prediction of a disease has emerged as a biggest research challenge. All these medical images can be in the form of
X-RAY, CT scan, MRI, PET and SPECT. These images carry minute information about heart, brain, nerves etc within
themselves. It may happen that these images get corrupted due to noise while capturing them. This makes the complete
image interpretation process very difficult and inaccurate. It has been found that the accuracy rate of existing method is
very less so improvement is required to make them more accurate. This paper proposes a Machine Learning Model based
on Convolutional Neural Network (CNN) that will contain all the filters required to de-noise MRI or USI Images. This
model will have same error rate efficiency like those of data mining techniques which radiologists were interested in. The
filters used in the proposed work are namely Weiner Filter, Gaussian Filter, Median Filter that are capable of removing
most common noises such as Salt and Pepper, Poisson, Speckle, Blurred, Gaussian existing in MRI images in Grey Scale
and RGB Scale.
Keywords: Convolution Neural Network, Denoising, Machine Learning, Deep Learning, Image Noise, Filters
A HYBRID FILTERING TECHNIQUE FOR ELIMINATING UNIFORM NOISE AND IMPULSE NOIS...sipij
A new hybrid filtering technique is proposed to improving denoising process on digital images.
This technique is performed in two steps. In the first step, uniform noise and impulse noise is
eliminated using decision based algorithm (DBA). Image denoising process is further improved
by an appropriately combining DBA with Adaptive Neuro Fuzzy Inference System (ANFIS) at
the removal of uniform noise and impulse noise on the digital images. Three well known images
are selected for training and the internal parameters of the neuro-fuzzy network are adaptively
optimized by training. This technique offers excellent line, edge, and fine detail preservation
performance while, at the same time, effectively denoising digital images. Extensive simulation
results were realized for ANFIS network and different filters are compared. Results show that
the proposed filter is superior performance in terms of image denoising and edges and fine
details preservation properties.
FusIon - On-Field Security and Privacy Preservation for IoT Edge Devices: Con...jamesinniss
FusIon - On-Field Security and Privacy Preservation for IoT Edge Devices: Concurrent Defense Against Multiple types of Hardware Trojan Attacks
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Robust foreground modelling to segment and detect multiple moving objects in ...IJECEIAES
This document summarizes a research paper that proposes a robust foreground modeling method to segment and detect multiple moving objects in videos. The proposed method uses a running average technique to model the background and subtract it from video frames to detect foreground objects. Morphological operations like dilation and erosion are applied to reduce noise and merge connected regions. Convex hull processing is also used to define object boundaries more clearly. The method was tested on standard video datasets and achieved better performance than other techniques in segmenting objects under various challenging conditions like illumination changes and occlusion. Experimental results demonstrated high precision, recall and specificity based on comparisons with ground truth data.
An overview of multi-filters for eliminating impulse noise for digital imagesTELKOMNIKA JOURNAL
An image through the digitization process is referred to as a digital image. The quality of the digital image may be degenerating due to interferences on the acquisition, transmission, extraction, etc. This attracted the attention of many researchers to study the causes of damage to the information in the image. In addition to finding cause of image damage, the researchers also looking for ways to overcome this problem. There are many filtering techniques that have been introduced to deal the damage to the information in the image. In addition to eliminating noise from the image, filtering techniques also aims to maintain the originality of the features in the image. Among the many research papers on image filtering there is a lack of review papers which are an important to facilitate researchers in understanding the differences in each filtering technique. Additionally, it helps researchers determine the direction of research conducted based on the results of previous research. Therefore, this paper presents a review of several filtering techniques that have been developed so far.
Similar to Image noise reduction by deep learning methods (20)
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Neural network optimizer of proportional-integral-differential controller par...IJECEIAES
Wide application of proportional-integral-differential (PID)-regulator in industry requires constant improvement of methods of its parameters adjustment. The paper deals with the issues of optimization of PID-regulator parameters with the use of neural network technology methods. A methodology for choosing the architecture (structure) of neural network optimizer is proposed, which consists in determining the number of layers, the number of neurons in each layer, as well as the form and type of activation function. Algorithms of neural network training based on the application of the method of minimizing the mismatch between the regulated value and the target value are developed. The method of back propagation of gradients is proposed to select the optimal training rate of neurons of the neural network. The neural network optimizer, which is a superstructure of the linear PID controller, allows increasing the regulation accuracy from 0.23 to 0.09, thus reducing the power consumption from 65% to 53%. The results of the conducted experiments allow us to conclude that the created neural superstructure may well become a prototype of an automatic voltage regulator (AVR)-type industrial controller for tuning the parameters of the PID controller.
An improved modulation technique suitable for a three level flying capacitor ...IJECEIAES
This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed
simplified modulation technique paves the way for more straightforward and
efficient control of multilevel inverters, enabling their widespread adoption and
integration into modern power electronic systems. Through the amalgamation of
sinusoidal pulse width modulation (SPWM) with a high-frequency square wave
pulse, this controlling technique attains energy equilibrium across the coupling
capacitor. The modulation scheme incorporates a simplified switching pattern
and a decreased count of voltage references, thereby simplifying the control
algorithm.
A review on features and methods of potential fishing zoneIJECEIAES
This review focuses on the importance of identifying potential fishing zones in seawater for sustainable fishing practices. It explores features like sea surface temperature (SST) and sea surface height (SSH), along with classification methods such as classifiers. The features like SST, SSH, and different classifiers used to classify the data, have been figured out in this review study. This study underscores the importance of examining potential fishing zones using advanced analytical techniques. It thoroughly explores the methodologies employed by researchers, covering both past and current approaches. The examination centers on data characteristics and the application of classification algorithms for classification of potential fishing zones. Furthermore, the prediction of potential fishing zones relies significantly on the effectiveness of classification algorithms. Previous research has assessed the performance of models like support vector machines, naïve Bayes, and artificial neural networks (ANN). In the previous result, the results of support vector machine (SVM) were 97.6% more accurate than naive Bayes's 94.2% to classify test data for fisheries classification. By considering the recent works in this area, several recommendations for future works are presented to further improve the performance of the potential fishing zone models, which is important to the fisheries community.
Electrical signal interference minimization using appropriate core material f...IJECEIAES
As demand for smaller, quicker, and more powerful devices rises, Moore's law is strictly followed. The industry has worked hard to make little devices that boost productivity. The goal is to optimize device density. Scientists are reducing connection delays to improve circuit performance. This helped them understand three-dimensional integrated circuit (3D IC) concepts, which stack active devices and create vertical connections to diminish latency and lower interconnects. Electrical involvement is a big worry with 3D integrates circuits. Researchers have developed and tested through silicon via (TSV) and substrates to decrease electrical wave involvement. This study illustrates a novel noise coupling reduction method using several electrical involvement models. A 22% drop in electrical involvement from wave-carrying to victim TSVs introduces this new paradigm and improves system performance even at higher THz frequencies.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Bibliometric analysis highlighting the role of women in addressing climate ch...IJECEIAES
Fossil fuel consumption increased quickly, contributing to climate change
that is evident in unusual flooding and draughts, and global warming. Over
the past ten years, women's involvement in society has grown dramatically,
and they succeeded in playing a noticeable role in reducing climate change.
A bibliometric analysis of data from the last ten years has been carried out to
examine the role of women in addressing the climate change. The analysis's
findings discussed the relevant to the sustainable development goals (SDGs),
particularly SDG 7 and SDG 13. The results considered contributions made
by women in the various sectors while taking geographic dispersion into
account. The bibliometric analysis delves into topics including women's
leadership in environmental groups, their involvement in policymaking, their
contributions to sustainable development projects, and the influence of
gender diversity on attempts to mitigate climate change. This study's results
highlight how women have influenced policies and actions related to climate
change, point out areas of research deficiency and recommendations on how
to increase role of the women in addressing the climate change and
achieving sustainability. To achieve more successful results, this initiative
aims to highlight the significance of gender equality and encourage
inclusivity in climate change decision-making processes.
Voltage and frequency control of microgrid in presence of micro-turbine inter...IJECEIAES
The active and reactive load changes have a significant impact on voltage
and frequency. In this paper, in order to stabilize the microgrid (MG) against
load variations in islanding mode, the active and reactive power of all
distributed generators (DGs), including energy storage (battery), diesel
generator, and micro-turbine, are controlled. The micro-turbine generator is
connected to MG through a three-phase to three-phase matrix converter, and
the droop control method is applied for controlling the voltage and
frequency of MG. In addition, a method is introduced for voltage and
frequency control of micro-turbines in the transition state from gridconnected mode to islanding mode. A novel switching strategy of the matrix
converter is used for converting the high-frequency output voltage of the
micro-turbine to the grid-side frequency of the utility system. Moreover,
using the switching strategy, the low-order harmonics in the output current
and voltage are not produced, and consequently, the size of the output filter
would be reduced. In fact, the suggested control strategy is load-independent
and has no frequency conversion restrictions. The proposed approach for
voltage and frequency regulation demonstrates exceptional performance and
favorable response across various load alteration scenarios. The suggested
strategy is examined in several scenarios in the MG test systems, and the
simulation results are addressed.
Enhancing battery system identification: nonlinear autoregressive modeling fo...IJECEIAES
Precisely characterizing Li-ion batteries is essential for optimizing their
performance, enhancing safety, and prolonging their lifespan across various
applications, such as electric vehicles and renewable energy systems. This
article introduces an innovative nonlinear methodology for system
identification of a Li-ion battery, employing a nonlinear autoregressive with
exogenous inputs (NARX) model. The proposed approach integrates the
benefits of nonlinear modeling with the adaptability of the NARX structure,
facilitating a more comprehensive representation of the intricate
electrochemical processes within the battery. Experimental data collected
from a Li-ion battery operating under diverse scenarios are employed to
validate the effectiveness of the proposed methodology. The identified
NARX model exhibits superior accuracy in predicting the battery's behavior
compared to traditional linear models. This study underscores the
importance of accounting for nonlinearities in battery modeling, providing
insights into the intricate relationships between state-of-charge, voltage, and
current under dynamic conditions.
Smart grid deployment: from a bibliometric analysis to a surveyIJECEIAES
Smart grids are one of the last decades' innovations in electrical energy.
They bring relevant advantages compared to the traditional grid and
significant interest from the research community. Assessing the field's
evolution is essential to propose guidelines for facing new and future smart
grid challenges. In addition, knowing the main technologies involved in the
deployment of smart grids (SGs) is important to highlight possible
shortcomings that can be mitigated by developing new tools. This paper
contributes to the research trends mentioned above by focusing on two
objectives. First, a bibliometric analysis is presented to give an overview of
the current research level about smart grid deployment. Second, a survey of
the main technological approaches used for smart grid implementation and
their contributions are highlighted. To that effect, we searched the Web of
Science (WoS), and the Scopus databases. We obtained 5,663 documents
from WoS and 7,215 from Scopus on smart grid implementation or
deployment. With the extraction limitation in the Scopus database, 5,872 of
the 7,215 documents were extracted using a multi-step process. These two
datasets have been analyzed using a bibliometric tool called bibliometrix.
The main outputs are presented with some recommendations for future
research.
Use of analytical hierarchy process for selecting and prioritizing islanding ...IJECEIAES
One of the problems that are associated to power systems is islanding
condition, which must be rapidly and properly detected to prevent any
negative consequences on the system's protection, stability, and security.
This paper offers a thorough overview of several islanding detection
strategies, which are divided into two categories: classic approaches,
including local and remote approaches, and modern techniques, including
techniques based on signal processing and computational intelligence.
Additionally, each approach is compared and assessed based on several
factors, including implementation costs, non-detected zones, declining
power quality, and response times using the analytical hierarchy process
(AHP). The multi-criteria decision-making analysis shows that the overall
weight of passive methods (24.7%), active methods (7.8%), hybrid methods
(5.6%), remote methods (14.5%), signal processing-based methods (26.6%),
and computational intelligent-based methods (20.8%) based on the
comparison of all criteria together. Thus, it can be seen from the total weight
that hybrid approaches are the least suitable to be chosen, while signal
processing-based methods are the most appropriate islanding detection
method to be selected and implemented in power system with respect to the
aforementioned factors. Using Expert Choice software, the proposed
hierarchy model is studied and examined.
Enhancing of single-stage grid-connected photovoltaic system using fuzzy logi...IJECEIAES
The power generated by photovoltaic (PV) systems is influenced by
environmental factors. This variability hampers the control and utilization of
solar cells' peak output. In this study, a single-stage grid-connected PV
system is designed to enhance power quality. Our approach employs fuzzy
logic in the direct power control (DPC) of a three-phase voltage source
inverter (VSI), enabling seamless integration of the PV connected to the
grid. Additionally, a fuzzy logic-based maximum power point tracking
(MPPT) controller is adopted, which outperforms traditional methods like
incremental conductance (INC) in enhancing solar cell efficiency and
minimizing the response time. Moreover, the inverter's real-time active and
reactive power is directly managed to achieve a unity power factor (UPF).
The system's performance is assessed through MATLAB/Simulink
implementation, showing marked improvement over conventional methods,
particularly in steady-state and varying weather conditions. For solar
irradiances of 500 and 1,000 W/m2
, the results show that the proposed
method reduces the total harmonic distortion (THD) of the injected current
to the grid by approximately 46% and 38% compared to conventional
methods, respectively. Furthermore, we compare the simulation results with
IEEE standards to evaluate the system's grid compatibility.
Enhancing photovoltaic system maximum power point tracking with fuzzy logic-b...IJECEIAES
Photovoltaic systems have emerged as a promising energy resource that
caters to the future needs of society, owing to their renewable, inexhaustible,
and cost-free nature. The power output of these systems relies on solar cell
radiation and temperature. In order to mitigate the dependence on
atmospheric conditions and enhance power tracking, a conventional
approach has been improved by integrating various methods. To optimize
the generation of electricity from solar systems, the maximum power point
tracking (MPPT) technique is employed. To overcome limitations such as
steady-state voltage oscillations and improve transient response, two
traditional MPPT methods, namely fuzzy logic controller (FLC) and perturb
and observe (P&O), have been modified. This research paper aims to
simulate and validate the step size of the proposed modified P&O and FLC
techniques within the MPPT algorithm using MATLAB/Simulink for
efficient power tracking in photovoltaic systems.
Adaptive synchronous sliding control for a robot manipulator based on neural ...IJECEIAES
Robot manipulators have become important equipment in production lines, medical fields, and transportation. Improving the quality of trajectory tracking for
robot hands is always an attractive topic in the research community. This is a
challenging problem because robot manipulators are complex nonlinear systems
and are often subject to fluctuations in loads and external disturbances. This
article proposes an adaptive synchronous sliding control scheme to improve trajectory tracking performance for a robot manipulator. The proposed controller
ensures that the positions of the joints track the desired trajectory, synchronize
the errors, and significantly reduces chattering. First, the synchronous tracking
errors and synchronous sliding surfaces are presented. Second, the synchronous
tracking error dynamics are determined. Third, a robust adaptive control law is
designed,the unknown components of the model are estimated online by the neural network, and the parameters of the switching elements are selected by fuzzy
logic. The built algorithm ensures that the tracking and approximation errors
are ultimately uniformly bounded (UUB). Finally, the effectiveness of the constructed algorithm is demonstrated through simulation and experimental results.
Simulation and experimental results show that the proposed controller is effective with small synchronous tracking errors, and the chattering phenomenon is
significantly reduced.
Remote field-programmable gate array laboratory for signal acquisition and de...IJECEIAES
A remote laboratory utilizing field-programmable gate array (FPGA) technologies enhances students’ learning experience anywhere and anytime in embedded system design. Existing remote laboratories prioritize hardware access and visual feedback for observing board behavior after programming, neglecting comprehensive debugging tools to resolve errors that require internal signal acquisition. This paper proposes a novel remote embeddedsystem design approach targeting FPGA technologies that are fully interactive via a web-based platform. Our solution provides FPGA board access and debugging capabilities beyond the visual feedback provided by existing remote laboratories. We implemented a lab module that allows users to seamlessly incorporate into their FPGA design. The module minimizes hardware resource utilization while enabling the acquisition of a large number of data samples from the signal during the experiments by adaptively compressing the signal prior to data transmission. The results demonstrate an average compression ratio of 2.90 across three benchmark signals, indicating efficient signal acquisition and effective debugging and analysis. This method allows users to acquire more data samples than conventional methods. The proposed lab allows students to remotely test and debug their designs, bridging the gap between theory and practice in embedded system design.
Detecting and resolving feature envy through automated machine learning and m...IJECEIAES
Efficiently identifying and resolving code smells enhances software project quality. This paper presents a novel solution, utilizing automated machine learning (AutoML) techniques, to detect code smells and apply move method refactoring. By evaluating code metrics before and after refactoring, we assessed its impact on coupling, complexity, and cohesion. Key contributions of this research include a unique dataset for code smell classification and the development of models using AutoGluon for optimal performance. Furthermore, the study identifies the top 20 influential features in classifying feature envy, a well-known code smell, stemming from excessive reliance on external classes. We also explored how move method refactoring addresses feature envy, revealing reduced coupling and complexity, and improved cohesion, ultimately enhancing code quality. In summary, this research offers an empirical, data-driven approach, integrating AutoML and move method refactoring to optimize software project quality. Insights gained shed light on the benefits of refactoring on code quality and the significance of specific features in detecting feature envy. Future research can expand to explore additional refactoring techniques and a broader range of code metrics, advancing software engineering practices and standards.
Smart monitoring technique for solar cell systems using internet of things ba...IJECEIAES
Rapidly and remotely monitoring and receiving the solar cell systems status parameters, solar irradiance, temperature, and humidity, are critical issues in enhancement their efficiency. Hence, in the present article an improved smart prototype of internet of things (IoT) technique based on embedded system through NodeMCU ESP8266 (ESP-12E) was carried out experimentally. Three different regions at Egypt; Luxor, Cairo, and El-Beheira cities were chosen to study their solar irradiance profile, temperature, and humidity by the proposed IoT system. The monitoring data of solar irradiance, temperature, and humidity were live visualized directly by Ubidots through hypertext transfer protocol (HTTP) protocol. The measured solar power radiation in Luxor, Cairo, and El-Beheira ranged between 216-1000, 245-958, and 187-692 W/m 2 respectively during the solar day. The accuracy and rapidity of obtaining monitoring results using the proposed IoT system made it a strong candidate for application in monitoring solar cell systems. On the other hand, the obtained solar power radiation results of the three considered regions strongly candidate Luxor and Cairo as suitable places to build up a solar cells system station rather than El-Beheira.
An efficient security framework for intrusion detection and prevention in int...IJECEIAES
Over the past few years, the internet of things (IoT) has advanced to connect billions of smart devices to improve quality of life. However, anomalies or malicious intrusions pose several security loopholes, leading to performance degradation and threat to data security in IoT operations. Thereby, IoT security systems must keep an eye on and restrict unwanted events from occurring in the IoT network. Recently, various technical solutions based on machine learning (ML) models have been derived towards identifying and restricting unwanted events in IoT. However, most ML-based approaches are prone to miss-classification due to inappropriate feature selection. Additionally, most ML approaches applied to intrusion detection and prevention consider supervised learning, which requires a large amount of labeled data to be trained. Consequently, such complex datasets are impossible to source in a large network like IoT. To address this problem, this proposed study introduces an efficient learning mechanism to strengthen the IoT security aspects. The proposed algorithm incorporates supervised and unsupervised approaches to improve the learning models for intrusion detection and mitigation. Compared with the related works, the experimental outcome shows that the model performs well in a benchmark dataset. It accomplishes an improved detection accuracy of approximately 99.21%.
Design and optimization of ion propulsion dronebjmsejournal
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
1. International Journal of Electrical and Computer Engineering (IJECE)
Vol. 13, No. 6, December 2023, pp. 6855~6861
ISSN: 2088-8708, DOI: 10.11591/ijece.v13i6.pp6855-6861 6855
Journal homepage: http://ijece.iaescore.com
Image noise reduction by deep learning methods
Nurgul Uzakkyzy1
, Aisulu Ismailova2
, Talgatbek Ayazbaev3
, Zhanar Beldeubayeva2
,
Shynar Kodanova4
, Balbupe Utenova4
, Aizhan Satybaldiyeva2
, Mira Kaldarova5
1
Department of Computer and Software Engineering, Faculty of Information Technology, L. N. Gumilyov Eurasian National University,
Astana, Kazakhstan
2
Department of Information Systems, S. Seifullin Кazakh Agrotechnical University, Astana, Kazakhstan
3
Department of Information and Communication Technologies, Faculty of Information Technology, International Taraz Innovative
Institute, Taraz, Kazakhstan
4
Faculty of Information Technologies, Atyrau University of Oil and Gas named after Safi Utebaev, Atyrau, Kazakhstan
5
Higher School of Information Technology and Engineering, Astana International University, Astana, Kazakhstan
Article Info ABSTRACT
Article history:
Received Jun 4, 2023
Revised Jul 6, 2023
Accepted Jul 17, 2023
Image noise reduction is an important task in the field of computer vision and
image processing. Traditional noise filtering methods may be limited by their
ability to preserve image details. The purpose of this work is to study and
apply deep learning methods to reduce noise in images. The main tasks of
noise reduction in images are the removal of Gaussian noise, salt and pepper
noise, noise of lines and stripes, noise caused by compression, and noise
caused by equipment defects. In this paper, such noises as the removal of
raindrops, dust, and traces of snow on the images were considered. In the
work, complex patterns and high noise density were studied. A deep learning
algorithm, such as the decomposition method with and without preprocessing,
and their effectiveness in applying noise reduction are considered. It is
expected that the results of the study will confirm the effectiveness of deep
learning methods in reducing noise in images. This may lead to the
development of more accurate and versatile image processing methods
capable of preserving details and improving the visual quality of images in
various fields, including medicine, photography, and video.
Keywords:
Deep learning
Image processing
Machine learning
Noisy image
Removing raindrops
Traces of snow on the images
This is an open access article under the CC BY-SA license.
Corresponding Author:
Aisulu Ismailova
Department of Information Systems, S. Seifullin Кazakh Agrotechnical University
Astana-010000, Republic of Kazakhstan
Email: a.ismailova@mail.ru
1. INTRODUCTION
There are various machine learning methods for removing noise in images, including neural
networks, deep learning, image recovery methods [1], and regularization methods [2]–[4]. Neural networks
[5] and deep learning, such as autoencoding and convolutional neural networks (CNNs) [6], [7] are often
used to remove noise in images. In this paper, the methods considered were trained on clean images, and then
used this model to remove noise on noisy images. Raindrops, traces of snow, and dust in the images can be
considered as one of the types of noise in the images. They are random white or black spots, and white or
gray lines on the background of the image, which can degrade the image quality and make it difficult to
analyze. When shooting outdoors, these noises can be especially noticeable on dark backgrounds and at
night. To remove such noise in images, various machine learning methods can be used [8]–[10] such as
filters, CNNs, and other algorithms. CNNs can be trained on a large number of images with different types of
noise to automatically remove noise on new images. There are also noise reduction methods based on
statistical analysis that can help in removing such types of noise in images. For example, the histogram
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method is used to improve image quality by applying histogram alignment. This method changes the
brightness or color characteristic of the image in such a way as to obtain a more uniform distribution of pixel
values. This method can help to improve the image quality and increase its readability.
Lyu et al. [11] present a fast and flexible denoising network (FFDNet), a deep learning model that
focuses on fast and flexible image noise reduction. The model provides competitive results in the field of noise
reduction while maintaining efficient computing performance. According to Ulyanov et al. [12] the concept of
using deep neural networks as prerequisites for image reconstruction tasks, including noise suppression, is
investigated. The authors demonstrate that a randomly initialized deep neural network (DNN) can capture the
basic structure of images and effectively eliminate their noise without the need for additional training data.
Batson and Royer [13] present Noise2Self, a self-supervised learning method for denoising images.
The approach leverages the idea that an image can be used as it is noisy label, allowing the model to learn
denoising directly from noisy images. Zhai et al. [14] addresses the challenges of real-world image
denoising, where the noise characteristics are unknown. The authors propose neural adaptation networks
(NANs), which can adapt to different noise levels and distributions for effective denoising.
Zhang et al. [15] focuses on learning a deep CNN denoiser prior, which can be applied to various
image restoration tasks, including denoising. The authors propose a two-stage training framework that
incorporates both noisy and clean images to learn effective denoising prior. Sharan et al. [16] focuses on
video denoising, it presents a deep learning-based approach that can be extended to image denoising. The
authors propose a deep video prior, which exploits temporal redundancy in videos to effectively denoise
individual frames. These are just a few notable works that demonstrate the effectiveness of deep learning
techniques to reduce noise in images. It is important to note that research in this area is constantly evolving,
so conducting a comprehensive literature search would allow you to get a more detailed idea of the
achievements made in this area.
2. METHOD
The generative model of the attentive generative adversarial network (GAN) combines the ideas of
attention and classical GAN architecture. The AttentiveGAN [17], [18] allows the model to focus on specific
areas in the data and generate better results. Attention in the context of machine learning refers to a
mechanism that allows the model to focus on certain parts of the input data, ignoring the rest. This allows the
model to focus on more important details or data areas. An AttentiveGAN usually consists of two main
components: a generator and a discriminator, which compete with each other in the learning process. The
generator takes random noise or another form of input data as input and generates the generated data.
Attention can be applied to the generator so that it can focus on certain areas of data and create more realistic
results. The discriminator accepts both real data and generated data from the generator and tries to distinguish
them. The task of the discriminator is to distinguish real data from fake data with maximum accuracy.
Learning occurs by opposing the generator and discriminator to each other. The architecture of the model for
the applied task of this work is shown in Figure 1.
Figure 1. The architecture of the AttentiveGAN model
The effectiveness of using filtering [19] on noisy images depends on several factors, including the
type of noise, the noise level, the selected filter, and filtering options. Different types of noise require
different filtering methods. For example, for randomly distributed additive noise, such as Gaussian noise,
filters based on statistical processing, such as a Gaussian filter or a median filter, are usually effective.
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The algorithm for performing Gaussian filtering and the AttentiveGAN (AGAN) model was
implemented as follows:
a) Training the AGAN model. First, the AGAN model was trained in pairs of noisy and clean images. The
AGAN model generates clean images from noisy inputs.
b) Preparation of a noisy image. The noisy image must be prepared. This may include applying Gaussian
filtering to smooth the noise, which can reduce high-frequency noise.
c) Application of the AGAN model. The noisy image is passed through the AGAN model generator. The
generator converts the noisy image into a cleaner image using the information obtained during training.
d) Application of Gaussian filtering [20]–[22]. After passing through the AGAN model, the resulting
cleaned image is further processed using Gaussian filtering [23]–[25]. This allows you to smooth out the
remaining noise and improve the quality of the final image.
3. RESULT AND DISCUSSION
To solve this problem, noisy images with different noise densities were taken, which contain
raindrops and traces of dust and snow. The training data set contains 15,314 pre-trained sets of images taken
from the Kaggle open-access database. Figure 2 shows noisy images with various types of noise, such as
Figure 2(a) traces of dust, Figure 2(b) traces of snow, and Figure 2(c) raindrops.
In this work, when training on pairs of noisy and corresponding clean images, the AttentiveGAN
model was used. After the training model, a Gaussian filter was also used. As shown in Figure 3, the results
of using the AttentiveGAN model and filtering when removing noise, such as in Figure 3(a) the result of
removing traces of dust, in Figure 3(b) the result of removing traces of snow, in Figure 3(c) the result of
removing raindrops of the image were impressive. The model was trained to extract important features of the
image and restore its clean version, minimizing the effect of noise. Applying a Gaussian filter can effectively
reduce image noise, especially when the noise is additive and has a Gaussian distribution. This made it
possible to achieve improved image quality with reduced noise.
(a) (b) (c)
Figure 2. Original noisy images (a) dust trails, (b) snow trails, and (c) raindrops
(a) (b) (c)
Figure 3. Processed images (a) the result of removing traces of dust, (b) the result of removing traces of
snow, and (c) the result of removing raindrops
In this work, deep learning methods show high efficiency in reducing noise in images. They allow
models to automatically study complex dependencies in data and restore clean images with high accuracy.
The Terrain model was used for all training images, which made it possible to reduce noise in images of
different types. Figure 4 shows the algorithm for executing the AttentiveGAN model using a Gaussian mask.
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Figure 4. Algorithm for executing the AttentiveGAN model
Gloss, D-loss, and SIM metrics are used in the context of generative-adversarial networks (GAN) to
evaluate model performance. The Gloss loss measure (generative loss) evaluates how well the generator in
GAN performs its task. The purpose of the generator is to create real examples of data that can pass as real.
Gloss allows you to estimate the difference between the generated data and the real data. The lower the G-
loss, the better the generator performs its task.
The discriminative loss (D-loss) loss measure evaluates how well the discriminator in GAN
distinguishes between generated data and real data. The discriminator in GAN is a model that is trained to
classify data as real or generated. D-loss allows you to estimate the difference between the discriminator
classification and the actual data labels. The purpose of the discriminator is to be able to accurately
distinguish real data from generated data. The lower the D-loss, the better the discriminator performs it is
task. The structural similarity index (SSIM) metric is used to measure the similarity between two images.
SSIM evaluates the structural similarity between the original and restored images. It takes into account the
brightness, contrast, structure, and perception of human vision. SSIM outputs a value from 0 to 1, where 1
means perfect similarity. A high SSIM value as shown in Figure 5 indicates that the restored image is close to
the original one in terms of structure.
Figure 5. Gloss, D-loss, and SIM loss measure
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4. CONCLUSION
In this experiment, the resulting improved images can be effectively used in the future in object
recognition. If the background in an image contains noise or unwanted detail, blurring the background helps
make objects stand out more. Automated image noise reduction using deep learning techniques can make
objects more distinct and easier to recognize.
In the course of the work, it was noted that the effectiveness of deep learning methods for noise
reduction depends on the quality of training data, the amount of data, and the choice of model architecture. In
this work, noisy images with different noise densities were taken. The optimal result can be achieved with the
correct selection of parameters and optimization of the model for a specific type of noise and the desired
results. In this work, to achieve a better result, we used a combined model, that is, we trained the data using
the Derain model and applied a Gaussian filter. To assess the effectiveness of the model, Gloss, D-loss, and
SIM indicators were used, where the SIM value reaches 1, which allows us to evaluate the effectiveness of
the deep learning method used.
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BIOGRAPHIES OF AUTHORS
Nurgul Uzakkyzy received her Ph.D. in 2020 in Computer Engineering and
Software from L.N. Gumilyov Eurasian National University, Kazakhstan. Currently. She is an
associate professor of the Department of Computer and Software Engineering at the same
university. Her research interests include signal processing, image processing, computer
vision, satellite imagery, artificial intelligence, and machine learning. She can be contacted at
email: nura_astana@mail.ru.
Aisulu Ismailova received her Ph.D. in 2015 in Information Systems from L.N.
Gumilyov Eurasian National University, Kazakhstan. Currently, she is an associate professor
at the Department of Information Systems S. Seifullin Kazakh Agrotechnical University. Her
research interests include mathematical modeling, bioinformatics, artificial intelligence, and
data mining. She can be contacted at email: a.ismailova@mail.ru.
Talgatbek Ayazbaev at the moment, is a candidate in physical and mathematical
sciences and an associate professor at the Taraz Innovation and Humanitarian University,
Taraz, the Republic of Kazakhstan. His research interests include image processing, computer
vision, satellite imagery, artificial intelligence, and machine learning. He can be contacted at
email: ayazbaev.talgat@mail.ru.
Zhanar Beldeubayeva received her Ph.D. in 2019 in Information Systems from
Serikbayev East Kazakhstan technical university, Kazakhstan. Currently, she is a senior lecturer
at the Department of Information Systems, Kazakh Agrotechnical University named after S.
Seifullin. Her research interests include process modeling, knowledge management, data mining,
and machine learning. She can be contacted at email: zh.beldeubayeva@gmail.com.
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Shynar Kodanova Candidate of Technical Sciences, Associate Professor.
Kodanova Shynar in 2010 received a candidate of Technical Sciences degree in code
05.13.18– “Mathematical modeling, numerical methods and a set of programs.” Currently, she
works at the Atyrau University of Oil and Gas named after Safi Utebaev as the Dean of the
Faculty of Information Technologies. Her research interests include mathematical modeling
and artificial intelligence. Has more than 30 years of scientific and pedagogical experience and
more than 25 scientific papers, including 2 articles based on Scopus, 2 textbooks with ISBN,
2 manuals and developments. She can be contacted at email: kodanova_s@mail.ru.
Balbupe Utenova in 2011, Balbupe Utenova received a Ph.D. degree in the
specialty 05.13.11-Mathematics and Software for Computers, Complexes and Computer
Networks at L.N. Gumilyov, Kazakhstan. Currently, she is a professor at the Faculty of
Information Technology of the Atyrau University of Oil and Gas named after. S. Utebaeva.
Her research interests include fuzzy modeling, decision making under uncertainty, and expert
systems. Hirsch Index-3. She can be contacted at email: Balbupe_u-e@mail.ru.
Aizhan Satybaldiyeva received her Ph.D. in 2015 in Information Systems from
L.N. Gumilyov Eurasian National University, Kazakhstan. Currently, she is a senior Lecturer
of the Department of Information Systems S. Seifullin Kazakh Agrotechnical University. Her
research interests include mathematical modeling, mathematical logic, knowledge bases and
data mining. She can be contacted at email: satekbayeva@gmail.com.
Mira Kaldarova graduated in 2023 from the doctoral program in the educational
programs-D094 Information technology from Department of Computer Engineering and
Software Seifullin Kazakh Agro Technical Research University. Currently, she is а senior
lecture, Higher School of Information Technology and Engineering Astana International
University Kabanbay Batyra ave, 8, Astana, Republic of Kazakhstan. Her research interests
include mathematical modeling, bioinformatics, artificial intelligence, and data mining. She
can be contacted at email: kmiraj8206@gmail.com.