The change detection in remote sensing images remains an important and open problem for damage assessment. A new change detection method for LANSAT-8 images based on homogeneous pixel transformation (HPT) is proposed. Homogeneous Pixel Transformation transfers one image from its original feature space (e.g., gray space) to another feature space (e.g., spectral space) in pixel-level to make the pre-event images and post-event images to be represented in a common space or projection space for the convenience of change detection. HPT consists of two operations, i.e., forward transformation and backward transformation. In the forward transformation, each pixel of pre-event image in the first feature space is taken and will estimate its mapping pixel in the second space corresponding to post-event image based on the known unchanged pixels. A multi-value estimation method with the noise tolerance is produced to determine the mapping pixel using K-nearest neighbours technique. Once the mapping pixels of pre-event image are identified, the difference values between the mapping image and the post-event image can be directly generated. Then the similar work is done for backward transformation to combine the post-event image with the first space, and one more difference value for each pixel will be generated. Then, the two difference values are taken and combined to improve the robustness of detection with respect to the noise and heterogeneousness of images. (FRFCM) Fast and Robust Fuzzy C-means clustering algorithm is employed to divide the integrated difference values into two clusters- changed pixels and unchanged pixels. This detection results may contain few noisy regions as small error detections, and a spatial-neighbor based noise filter is developed to reduce the false alarms and missing detections. The experiments for change detection with real images of LANSAT-8 in Tuticorin between 2013-2019 are given to validate the percentage of the changed regions in the proposed method.
An Unsupervised Change Detection in Satellite IMAGES Using MRFFCM ClusteringEditor IJCATR
This paper presents a new approach for change detection in synthetic aperture radar images by incorporating Markov random field (MRF) within the framework of FCM. The objective is to partition the difference image which is generated from multitemporal satellite images into changed and unchanged regions. The difference image is generated from log ratio and mean ratio images by image fusion technique. The quality of difference image depends on image fusion technique. In the present work; we have proposed an image fusion method based on stationary wavelet transform. To process the difference image is to discriminate changed regions from unchanged regions using fuzzy clustering algorithms. The analysis of the DI is done using Markov random field (MRF) approach that exploits the interpixel class dependency in the spatial domain to improve the accuracy of the final change-detection areas. The experimental results on real synthetic aperture radar images demonstrate that change detection results obtained by the MRFFCM exhibits less error than previous approaches. The goodness of the proposed fusion algorithm by well-known image fusion measures and the percentage correct classifications are calculated and verified.
This presentation will give a simple overview of image classification technique using difference type software focusing on object-based image classification and segmentation.
it is highly useful for geography students in the field of remote sensing and it is in very simple and explanatory for the purpose of simplification with relevant images in this ppt.
An Unsupervised Change Detection in Satellite IMAGES Using MRFFCM ClusteringEditor IJCATR
This paper presents a new approach for change detection in synthetic aperture radar images by incorporating Markov random field (MRF) within the framework of FCM. The objective is to partition the difference image which is generated from multitemporal satellite images into changed and unchanged regions. The difference image is generated from log ratio and mean ratio images by image fusion technique. The quality of difference image depends on image fusion technique. In the present work; we have proposed an image fusion method based on stationary wavelet transform. To process the difference image is to discriminate changed regions from unchanged regions using fuzzy clustering algorithms. The analysis of the DI is done using Markov random field (MRF) approach that exploits the interpixel class dependency in the spatial domain to improve the accuracy of the final change-detection areas. The experimental results on real synthetic aperture radar images demonstrate that change detection results obtained by the MRFFCM exhibits less error than previous approaches. The goodness of the proposed fusion algorithm by well-known image fusion measures and the percentage correct classifications are calculated and verified.
This presentation will give a simple overview of image classification technique using difference type software focusing on object-based image classification and segmentation.
it is highly useful for geography students in the field of remote sensing and it is in very simple and explanatory for the purpose of simplification with relevant images in this ppt.
Object Classification of Satellite Images Using Cluster Repulsion Based Kerne...IOSR Journals
Abstract: We investigated the Classification of satellite images and multispectral remote sensing data .we
focused on uncertainty analysis in the produced land-cover maps .we proposed an efficient technique for
classifying the multispectral satellite images using Support Vector Machine (SVM) into road area, building area
and green area. We carried out classification in three modules namely (a) Preprocessing using Gaussian
filtering and conversion from conversion of RGB to Lab color space image (b) object segmentation using
proposed Cluster repulsion based kernel Fuzzy C- Means (FCM) and (c) classification using one-to-many SVM
classifier. The goal of this research is to provide the efficiency in classification of satellite images using the
object-based image analysis. The proposed work is evaluated using the satellite images and the accuracy of the
proposed work is compared to FCM based classification. The results showed that the proposed technique has
achieved better results reaching an accuracy of 79%, 84%, 81% and 97.9% for road, tree, building and vehicle
classification respectively.
Keywords:-Satellite image, FCM Clustering, Classification, SVM classifier.
EFFICIENT IMAGE RETRIEVAL USING REGION BASED IMAGE RETRIEVALsipij
Early image retrieval techniques were based on textual annotation of images. Manual annotation of images
is a burdensome and expensive work for a huge image database. It is often introspective, context-sensitive
and crude. Content based image retrieval, is implemented using the optical constituents of an image such
as shape, colour, spatial layout, and texture to exhibit and index the image. The Region Based Image
Retrieval (RBIR) system uses the Discrete Wavelet Transform (DWT) and a k-means clustering algorithm
to segment an image into regions. Each region of the image is represented by a set of optical
characteristics and the likeness between regions and is measured using a particular metric function on
such characteristics
A novel predicate for active region merging in automatic image segmentationeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
An Improved Way of Segmentation and Classification of Remote Sensing Images U...ijsrd.com
The Ultimate significance of Images lies in processing the digital image which stems from two principal application areas: Advances of pictorial information for human interpretation; and dispensation of image data for storage, communication, and illustration for self-sufficient machine perception. The objective of this research work is to define the meaning and possibility of image segmentation based on remote sensing images which are successively classified with statistical measures. In this paper kernel induced Possiblistic C-means clustering algorithm has been implemented for classifying remote sensing image data with image features. As a final point of the proposed work is to point out that this algorithm works well for segmenting and classifying the image with better accuracy with statistical metrices.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Sub-windowed laser speckle image velocimetry by fast fourier transform technique
Abstract
In this work, laser speckle velocimetry, a unique optical method for velocity measurement of fluid flow has been described. A laser sheet is developed and is illuminated on microscopic seeded particles to produce the speckle pattern at the recording plane. Double frame- single-exposure speckle images are captured in such a way that the second speckle image is shifted exactly in a known direction. The auto-correlation method has the ambiguity of direction of flow. To rectify this, spatial shift of the second image has been premeditated. Cross-correlation of sub interrogation areas is obtained by Fast Fourier Transform technique. Four sub-windows processed to obtain the velocity information with vector map analysis precisely.
Object tracking is one of the most important problems in modern visual systems and researches are
continuing their studies in this field. A suitable tracking method should not only be able to recognize and
track the related object in continuous frames, but should also provide a reliable and efficient reaction
against the phenomena disturbing tracking process including performance efficiency in real-time
applications. In this article, an effective mesh-based method is introduced as a suitable tracking method in
continuous frames. Also, its preference and limitation is discussed.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Object Classification of Satellite Images Using Cluster Repulsion Based Kerne...IOSR Journals
Abstract: We investigated the Classification of satellite images and multispectral remote sensing data .we
focused on uncertainty analysis in the produced land-cover maps .we proposed an efficient technique for
classifying the multispectral satellite images using Support Vector Machine (SVM) into road area, building area
and green area. We carried out classification in three modules namely (a) Preprocessing using Gaussian
filtering and conversion from conversion of RGB to Lab color space image (b) object segmentation using
proposed Cluster repulsion based kernel Fuzzy C- Means (FCM) and (c) classification using one-to-many SVM
classifier. The goal of this research is to provide the efficiency in classification of satellite images using the
object-based image analysis. The proposed work is evaluated using the satellite images and the accuracy of the
proposed work is compared to FCM based classification. The results showed that the proposed technique has
achieved better results reaching an accuracy of 79%, 84%, 81% and 97.9% for road, tree, building and vehicle
classification respectively.
Keywords:-Satellite image, FCM Clustering, Classification, SVM classifier.
EFFICIENT IMAGE RETRIEVAL USING REGION BASED IMAGE RETRIEVALsipij
Early image retrieval techniques were based on textual annotation of images. Manual annotation of images
is a burdensome and expensive work for a huge image database. It is often introspective, context-sensitive
and crude. Content based image retrieval, is implemented using the optical constituents of an image such
as shape, colour, spatial layout, and texture to exhibit and index the image. The Region Based Image
Retrieval (RBIR) system uses the Discrete Wavelet Transform (DWT) and a k-means clustering algorithm
to segment an image into regions. Each region of the image is represented by a set of optical
characteristics and the likeness between regions and is measured using a particular metric function on
such characteristics
A novel predicate for active region merging in automatic image segmentationeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
An Improved Way of Segmentation and Classification of Remote Sensing Images U...ijsrd.com
The Ultimate significance of Images lies in processing the digital image which stems from two principal application areas: Advances of pictorial information for human interpretation; and dispensation of image data for storage, communication, and illustration for self-sufficient machine perception. The objective of this research work is to define the meaning and possibility of image segmentation based on remote sensing images which are successively classified with statistical measures. In this paper kernel induced Possiblistic C-means clustering algorithm has been implemented for classifying remote sensing image data with image features. As a final point of the proposed work is to point out that this algorithm works well for segmenting and classifying the image with better accuracy with statistical metrices.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Sub-windowed laser speckle image velocimetry by fast fourier transform technique
Abstract
In this work, laser speckle velocimetry, a unique optical method for velocity measurement of fluid flow has been described. A laser sheet is developed and is illuminated on microscopic seeded particles to produce the speckle pattern at the recording plane. Double frame- single-exposure speckle images are captured in such a way that the second speckle image is shifted exactly in a known direction. The auto-correlation method has the ambiguity of direction of flow. To rectify this, spatial shift of the second image has been premeditated. Cross-correlation of sub interrogation areas is obtained by Fast Fourier Transform technique. Four sub-windows processed to obtain the velocity information with vector map analysis precisely.
Object tracking is one of the most important problems in modern visual systems and researches are
continuing their studies in this field. A suitable tracking method should not only be able to recognize and
track the related object in continuous frames, but should also provide a reliable and efficient reaction
against the phenomena disturbing tracking process including performance efficiency in real-time
applications. In this article, an effective mesh-based method is introduced as a suitable tracking method in
continuous frames. Also, its preference and limitation is discussed.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Orientation Spectral Resolution Coding for Pattern RecognitionIOSRjournaljce
In the approach of pattern recognition, feature descriptions are of greater importance. Features are represented in spatial domain and transformed domain. Wherein, spatial domain features are of lower representation, transformed domains are finer and more informative. In the transformed domain representation, features are represented using spectral coding using advanced transformation technique such as wavelet transformation. However, the feature extraction approach considers the band coefficients; the orientation variation is not considered. In this paper towards inherent orientation variation among each spectral band is derived, and the approach of orientation filtration is made for effective feature representation. The obtained result illustrates an improvement in the recognition accuracy, in comparison to conventional retrieval system.
A novel predicate for active region merging in automatic image segmentationeSAT Journals
Abstract Image segmentation is an elementary task in computer vision and image processing. This paper deals with the automatic image segmentation in a region merging method. Two essential problems in a region merging algorithm: order of merging and the stopping criterion. These two problems are solved by a novel predicate which is described by the sequential probability ratio test and the minimal cost criterion. In this paper we propose an Active Region merging algorithm which utilizes the information acquired from perceiving edges in color images in L*a*b* color space. By means of color gradient recognition method, pixels with no edges are clustered and considered alone to recognize some preliminary portion of the input image. The color information along with a region growth map consisting of completely grown regions are used to perform an Active region merging method to combine regions with similar characteristics. Experiments on real natural images are performed to demonstrate the performance of the proposed Active region merging method. Index Terms: Adaptive threshold generation, CIE L*a*b* color gradient, region merging, Sequential Probability Ratio Test (SPRT).
he data obtained from remote sensing satellites fu
rnish information about the land at varying resolut
ions
and has been widely used for change detection studi
es. There exist a huge number of change detection
methodologies and techniques with the continual eme
rgence of new ones. This paper provides a review of
pixel based and object-based change detection techn
iques in conjunction with the comparison of their
merits and limitations. The advent of very-high-res
olution remotely sensed images, exponentially incre
ased
image data volume and multiple sensors demand the p
otential use of data mining techniques in tandem
with object-based methods for change detection
Comparison of various Image Registration Techniques with the Proposed Hybrid ...idescitation
Image Registration is termed as the method to
transform different forms of image data into one coordinate
system. Registration is a important part in image processing
which is used for matching the pictures which are obtained at
different time intervals or from various sensors. A broad range
of registration techniques have been developed for the various
types of image data. These techniques are independently
studied for many applications resulting in the large body of
result. Vision is the most advanced of human sensors, so
naturally images play one of the most important roles in
human perception. Image registration is one of the branches
encompassed by the diverse field of digital image processing.
Due to its importance in many application areas as well as
since its nature is complicated; image registration is now the
topic of much recent research. Registration algorithms tend
to compute transformations to set correspondence betweenthe two images. In this paper the survey is done on various
image registration techniques. Also the different techniques
are compared with the proposed system of the projec
INFORMATION SATURATION IN MULTISPECTRAL PIXEL LEVEL IMAGE FUSIONIJCI JOURNAL
The availability of imaging sensors operating in multiple spectral bands has led to the requirement of
image fusion algorithms that would combine the image from these sensors in an efficient way to give an
image that is more informative as well as perceptible to human eye. Multispectral image fusion is the
process of combining images from different spectral bands that are optically acquired. In this paper, we
used a pixel-level image fusion based on principal component analysis that combines satellite images of the
same scene from seven different spectral bands. The purpose of using principal component analysis
technique is that it is best method for Grayscale image fusion and gives better results. The main aim of
PCA technique is to reduce a large set of variables into a small set which still contains most of the
information that was present in the large set. The paper compares different parameters namely, entropy,
standard deviation, correlation coefficient etc. for different number of images fused from two to seven.
Finally, the paper shows that the information content in an image gets saturated after fusing four images.
Image fusion using nsct denoising and target extraction for visual surveillanceeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Application of Image Retrieval Techniques to Understand Evolving Weatherijsrd.com
Multispectral satellite images provide valuable information to understand the evolution of various weather systems such as tropical cyclones, shifting of intra tropical convergence zone, moments of various troughs etc., accurate prediction and estimation will save live and property. This work will deal with the development of an application which will enable users to search an image from database using either gray level, texture and shape features for meteorological satellite image retrieval .Gray level feature is extracted using histogram method. The Texture feature is extracted using gray level co-occurrence method and wavelet approach. The shape feature vector is extracted using morphological operations. The similarity between query image and database images is calculated using Euclidian distance. The performance of the system is evaluated using precision
A comparative study for the assessment of Ikonos satellite image-fusion techn...IJEECSIAES
Image-fusion provide users with detailed information about the urban and rural environment, which is useful for applications such as urban planning and management when higher spatial resolution images are not available. There are different image fusion methods. This paper implements, evaluates, and compares six satellite image-fusion methods, namely wavelet 2D-M transform, gram schmidt, high-frequency modulation, high pass filter (HPF) transform, simple mean value, and PCA. An Ikonos image (PanchromaticPAN and multispectral-MULTI) showing the northwest of Bogotá (Colombia) is used to generate six fused images: MULTIWavelet 2D-M, MULTIG-S, MULTIMHF, MULTIHPF, MULTISMV, and MULTIPCA. In order to assess the efficiency of the six image-fusion methods, the resulting images were evaluated in terms of both spatial quality and spectral quality. To this end, four metrics were applied, namely the correlation index, erreur relative globale adimensionnelle de synthese (ERGAS), relative average spectral error (RASE) and the Q index. The best results were obtained for the MULTISMV image, which exhibited spectral correlation higher than 0.85, a Q index of 0.84, and the highest scores in spectral assessment according to ERGAS and RASE, 4.36% and 17.39% respectively.
A comparative study for the assessment of Ikonos satellite image-fusion techn...nooriasukmaningtyas
IImage-fusion provide users with detailed information about the urban and rural environment, which is useful for applications such as urban planning and management when higher spatial resolution images are not available. There are different image fusion methods. This paper implements, evaluates, and compares six satellite image-fusion methods, namely wavelet 2D-M transform, gram schmidt, high-frequency modulation, high pass filter (HPF) transform, simple mean value, and PCA. An Ikonos image (Panchromatic-PAN and multispectral-MULTI) showing the northwest of Bogotá (Colombia) is used to generate six fused images: MULTIWavelet 2D-M, MULTIG-S, MULTIMHF, MULTIHPF, MULTISMV, and MULTIPCA. In order to assess the efficiency of the six image-fusion methods, the resulting images were evaluated in terms of both spatial quality and spectral quality. To this end, four metrics were applied, namely the correlation index, erreur relative globale adimensionnelle de synthese (ERGAS), relative average spectral error (RASE) and the Q index. The best results were obtained for the MULTISMV image, which exhibited spectral correlation higher than 0.85, a Q index of 0.84, and the highest scores in spectral assessment according to ERGAS and RASE, 4.36% and 17.39% respectively.
This project is to retrieve the similar geographic images from the dataset based on the features extracted.
Retrieval is the process of collecting the relevant images from the dataset which contains more number of
images. Initially the preprocessing step is performed in order to remove noise occurred in input image with
the help of Gaussian filter. As the second step, Gray Level Co-occurrence Matrix (GLCM), Scale Invariant
Feature Transform (SIFT), and Moment Invariant Feature algorithms are implemented to extract the
features from the images. After this process, the relevant geographic images are retrieved from the dataset
by using Euclidean distance. In this, the dataset consists of totally 40 images. From that the images which
are all related to the input image are retrieved by using Euclidean distance. The approach of SIFT is to
perform reliable recognition, it is important that the feature extracted from the training image be
detectable even under changes in image scale, noise and illumination. The GLCM calculates how often a
pixel with gray level value occurs. While the focus is on image retrieval, our project is effectively used in
the applications such as detection and classification.
PDE BASED FEATURES FOR TEXTURE ANALYSIS USING WAVELET TRANSFORMIJCI JOURNAL
In the present paper, a novel method of partial differential equation (PDE) based features for texture
analysis using wavelet transform is proposed. The aim of the proposed method is to investigate texture
descriptors that perform better with low computational cost. Wavelet transform is applied to obtain
directional information from the image. Anisotropic diffusion is used to find texture approximation from
directional information. Further, texture approximation is used to compute various statistical features.
LDA is employed to enhance the class separability. The k-NN classifier with tenfold experimentation is
used for classification. The proposed method is evaluated on Brodatz dataset. The experimental results
demonstrate the effectiveness of the method as compared to the other methods in the literature.
Fpga implementation of image segmentation by using edge detection based on so...eSAT Journals
Abstract In this paper, we present the method of “FPGA implementation of image segmentation by using edge detection based on the sobel edge operator” .due to advancement in computer vision it can be implemented in fpga based architecture. image segmentation separates an image into component regions and object. Segmentation needs to segment the object from the background to read image properly and identify the image carefully. Edge detection is fundamental tool for image segmentation. Sobel edge operator, which is very popular edge detection algorithms, is considered in this work. Sobel method uses the derivative approximation to find edge and perform 2-D spatial gradient measurement for images uses horizontal and vertical gradient matrices .The fpga device providing good performance of integrated circuit platform for research and development. The compact structure of image segmentation into edge detection can be implemented in MAT LAB using VHDL code and the waveform is shown in the model sim.. Keywords: VLSI, FPGA, image segmentation, sobel edge operators, edge detection pixel, mat lab.
Fpga implementation of image segmentation by using edge detection based on so...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
3rd International Conference on Machine Learning, NLP and Data Mining (MLDA 2...ADEIJ Journal
3rd International Conference on Machine Learning, NLP and Data Mining (MLDA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Machine Learning, NLP and Data Mining.
8th International Conference on Soft Computing, Mathematics and Control (SMC ...ADEIJ Journal
8th International Conference on Soft Computing, Mathematics and Control (SMC 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications impacts and challenges of Soft Computing, Mathematics and Control. The conference documents practical and theoretical results which make a fundamental contribution for the development of Soft Computing, Mathematics and Control. The aim of the conference is to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the field.
3rd International Conference on Machine Learning, NLP and Data Mining (MLDA 2...ADEIJ Journal
3rd International Conference on Machine Learning, NLP and Data Mining (MLDA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Machine Learning, Natural Language Computing and Data Mining.
3rd International Conference on Artificial Intelligence Advances (AIAD 2024)ADEIJ Journal
3rd International Conference on Artificial Intelligence Advances (AIAD 2024) will act as a major forum for the presentation of innovative ideas, approaches, developments, and research projects in the area advanced Artificial Intelligence. It will also serve to facilitate the exchange of information between researchers and industry professionals to discuss the latest issues and advancement in the research area. Core areas of AI and advanced multi-disciplinary and its applications will be covered during the conferences.
12th International Conference of Artificial Intelligence and Fuzzy Logic (AI ...ADEIJ Journal
12th International Conference of Artificial Intelligence and Fuzzy Logic (AI & FL 2024) provides a forum for researchers who address this issue and to present their work in a peer-reviewed forum. Authors are solicited to contribute to the conference by submitting articles that illustrate research results, projects, surveying works and industrial experiences that describe significant advances in the following areas, but are not limited to these topics only.
10th International Conference on Artificial Intelligence and Applications (AI...ADEIJ Journal
10th International Conference on Artificial Intelligence and Applications (AI 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Artificial Intelligence and its applications. The Conference looks for significant contributions to all major fields of the Artificial Intelligence, Soft Computing in theoretical and practical aspects. The aim of the Conference is to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the field.
10th International Conference on Artificial Intelligence and Soft Computing (...ADEIJ Journal
10th International Conference on Artificial Intelligence and Soft Computing (AIS 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology, and applications of Artificial Intelligence, Soft Computing. The Conference looks for significant contributions to all major fields of the Artificial Intelligence, Soft Computing in theoretical and practical aspects. The aim of the Conference is to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the field.
A Novel Passwordless Authentication Scheme for Smart Phones Using Elliptic Cu...ADEIJ Journal
Today, a large number of people access internet through their smart phones to login to their bank accounts, social networking accounts and various other blogs. In such a scenario, user authentication has emerged as a major security issue in mobile internet. To date, password based authentication schemes have been extensively used to provide authentication and security. The password based authentication has always been cumbersome for the users because human memory is transient and remembering a large number of long and complicated passwords is impossible. Also, it is vulnerable to various kinds of attacks like brute force, rainbow table, dictionary, sniffing, shoulder surfing and so on. As the main contribution of this paper, a new passwordless authentication scheme for smart phones is presented which not only resolves all the weaknesses of password based schemes but also provide robust security. The proposed scheme relieves users from memorizing and storing long and complicated passwords. The proposed scheme uses ECDSA which is based on Elliptic Curve Cryptography (ECC). ECC has remarkable strength and efficiency advantages in terms of bandwidth, key sizes and computational overheads over other public key cryptosystems. It is therefore suitable for resource constraint devices like smart phone. Furthermore, the proposed scheme incorporate CAPTCHA which play a very important role in protecting the web resources from spamming and other malicious activities. To the best of our knowledge, until now no passwordless user authentication protocol based on ECC has been proposed for smart phones. Finally, the security and functionality analysis shows that compared with existing password based authentication schemes, the proposed scheme is more secure and efficient.
11th International Conference on Cybernetics & Informatics (CYBI 2024)ADEIJ Journal
11th International Conference on Cybernetics & Informatics (CYBI 2024) is a forum for presenting new advances and research results in the fields of information, control and system theory, understands the design and function of any system and the relationship among these applications. The conference will bring together leading researchers, engineers and scientists in the domain of interest from around the world. This conference aims to provide a platform for exchanging ideas in new emerging trends that needs more focus and exposure and will attempt to publish proposals that strengthen our goals.
2nd International Conference on Computer Science, Engineering and Artificial ...ADEIJ Journal
2nd International Conference on Computer Science, Engineering and Artificial Intelligence (CSEAI 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Computer Science, Computer Engineering and AI. The Conference looks for significant contributions to all major fields of the Computer Science, Engineering and AI in theoretical, practical aspects. The aim of the conference is to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the field.
SOI RF Switch for Wireless Sensor NetworkADEIJ Journal
The objective of this research was to design a 0-5 GHz RF SOI switch, with 0.18um power Jazz SOI technology by using Cadence software, for health care applications. This paper introduces the design of a RF switch implemented in shunt-series topology. An insertion loss of 0.906 dB and an isolation of 30.95 dB were obtained at 5 GHz. The switch also achieved a third order distortion of 53.05 dBm and 1 dB compression point reached 50.06dBm. The RF switch performance meets the desired specification requirements.
11th International Conference on Cybernetics & Informatics (CYBI 2024)ADEIJ Journal
11th International Conference on Cybernetics & Informatics (CYBI 2024) is a forum for presenting new advances and research results in the fields of information, control and system theory, understands the design and function of any system and the relationship among these applications. The conference will bring together leading researchers, engineers and scientists in the domain of interest from around the world. This conference aims to provide a platform for exchanging ideas in new emerging trends that needs more focus and exposure and will attempt to publish proposals that strengthen our goals.
A STUDY OF METHODS FOR TRAINING WITH DIFFERENT DATASETS IN IMAGE CLASSIFICATIONADEIJ Journal
This research developed a training method of Convolutional Neural Network model with multiple datasets to achieve good performance on both datasets. Two different methods of training with two characteristically different datasets with identical categories, one with very clean images and one with real-world data, were proposed and studied. The model used for the study was a neural network derived from ResNet. Mixed training was shown to produce the best accuracies for each dataset when the dataset is mixed into the training set at the highest proportion, and the best combined performance when the realworld dataset was mixed in at a ratio of around 70%. This ratio produced a top-1 combined performance of 63.8% (no mixing produced 30.8%) and a top-3 combined performance of 83.0% (no mixing produced 55.3%). This research also showed that iterative training has a worse combined performance than mixed training due to the issue of fast forgetting.
CLASSIFICATION AND COMPARISION OF REMOTE SENSING IMAGE USING SUPPORT VECTOR M...ADEIJ Journal
Remote sensing is collecting information about an object without any direct physical contact with the particular object. It is widely used in many fields such as oceanography, geology, ecology. Remote sensing uses the Satellite to detect and classify the particular object or area. They also classify the object on the earth surfaces which includes Vegetation, Building, Soil, Forest and Water. The approach uses the classifiers of previous images to decrease the required number of training samples for the classifier training of an incoming image. For each incoming image, a rough classifier is predicted first based on the temporal trend of a set of previous classifiers. The predicted classifier is then fine-tuned into a more accurate manner with current training samples. This approach can be further applied as sequential image data, with only a small number of training samples, which are being required from each image. This method uses LANSAT 8 images for Training and Testing processes. First, using the Classifier Prediction technique the Signatures are being generated for the input images. The generated Signatures are used for the Training purposes. SVM Classification is used for classifying the images. The final results describes that the leverage of a priori information from previous images will provide advantageous improvement for future images in multi temporal image classification.
RECOGNITION OF SKIN CANCER IN DERMOSCOPIC IMAGES USING KNN CLASSIFIERADEIJ Journal
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A COMPARATIVE ANALYSIS ON SOFTWARE ARCHITECTURE STYLESADEIJ Journal
Software architecture is the structural solution that achieves the overall technical and operational
requirements for software developments. Software engineers applied software architectures for their
software system developments; however, they worry the basic benchmarks in order to select software
architecture styles, possible components, integration methods (connectors) and the exact application of
each style.
The objective of this research work was a comparative analysis of software architecture styles by its
weakness and benefits in order to select by the programmer during their design time. Finally, in this study,
the researcher has been identified architectural styles, weakness, and Strength and application areas with
its component, connector and Interface for the selected architectural styles.
SYSTEM ANALYSIS AND DESIGN FOR A BUSINESS DEVELOPMENT MANAGEMENT SYSTEM BASED...ADEIJ Journal
A design of a sales system for professional services requires a comprehensive understanding of the
dynamics of sale cycles and how key knowledge for completing sales is managed. This research describes
a design model of a business development (sales) system for professional service firms based on the Saudi
Arabian commercial market, which takes into account the new advances in technology while preserving
unique or cultural practices that are an important part of the Saudi Arabian commercial market. The
design model has combined a number of key technologies, such as cloud computing and mobility, as an
integral part of the proposed system. An adaptive development process has also been used in implementing
the proposed design model
EXPERIMENTAL STUDY ON SOLAR HEATING BY NATURAL HEAT CONVECTION AND RADIATIONADEIJ Journal
Heat storage is a good energy saving option these days. Heat storage makes it possible to use thermal
energy at the required time. Solar water heaters for construction purposes and industrial purposes are the
best source to maintain traditional energy sources and thus can maintain high quality energy and liquid or
steel fuel due to the highest rise in their prices. In recent years, using solar energy has become remarkably
cheap and especially noteworthy. The efficiency of natural solar water heater system depends on collector
and reservoir setting, design and environmental factors such as solar intensity, ambient temperature and
wind conditions. Also, the relative height of the tank and collector separation mainly affects the volume of
the Siphon thermal flow rates, including both forward and reverse flow at night. In this pilot investigation,
two parallel rectangular glass plates were connected to the hot water storage tank. The effect of the
separation space between the plates (collectors) (D) was investigated and reported. The results reported
that outlet temperature in case D= 15 cm for two plates decreased approximately 24% and 23% for two
plates. Also, the heat radiated to the room decreased as the inner space between the two plates increased,
and decreased to approximately 25% as compared to stack plates.
FAULT IDENTIFY OF BEARING USING ENHANCED HILBERT-HUANG TRANSFORMADEIJ Journal
Today the maintenance and repair based on condition monitoring techniques of rotating equipment is one
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IMPROVEMENT OF THE FINGERPRINT RECOGNITION PROCESSADEIJ Journal
The increased development of IT tools and social communication networks has significantly increased the
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cannot be changed, lost or stolen. The use of fingerprinting is today one of the most reliable technologies
on the market to authenticate an individual. This technology is simple to use and easy to implement. The
techniques of fingerprint recognition are numerous and diversified, they are generally based on generic
algorithms and tools for filtering images.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
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Looking for the best engineering colleges in Jaipur for 2024?
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1) MNIT
2) MANIPAL UNIV
3) LNMIIT
4) NIMS UNIV
5) JECRC
6) VIVEKANANDA GLOBAL UNIV
7) BIT JAIPUR
8) APEX UNIV
9) AMITY UNIV.
10) JNU
TO KNOW MORE ABOUT COLLEGES, FEES AND PLACEMENT, WATCH THE FULL VIDEO GIVEN BELOW ON "TOP 10 B TECH COLLEGES IN JAIPUR"
https://www.youtube.com/watch?v=vSNje0MBh7g
VISIT CAREER MANTRA PORTAL TO KNOW MORE ABOUT COLLEGES/UNIVERSITITES in Jaipur:
https://careermantra.net/colleges/3378/Jaipur/b-tech
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The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
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The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
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REGION CLASSIFICATION AND CHANGE DETECTION USING LANSAT-8 IMAGES
1. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
1
REGION CLASSIFICATION AND CHANGE
DETECTION USING LANSAT-8 IMAGES
S.Nivetha1
and Dr.R.Jensi2
1
M.E, Final Year Dr.Sivanthi Aditanar College of Engineering, Tiruchendur.
2
Assistant Professor, Dr.Sivanthi Aditanar College of Engineering, Tiruchendur.
ABSTRACT
The change detection in remote sensing images remains an important and open problem for damage
assessment. A new change detection method for LANSAT-8 images based on homogeneous pixel
transformation (HPT) is proposed. Homogeneous Pixel Transformation transfers one image from its
original feature space (e.g., gray space) to another feature space (e.g., spectral space) in pixel-level to
make the pre-event images and post-event images to be represented in a common space or projection space
for the convenience of change detection. HPT consists of two operations, i.e., forward transformation and
backward transformation. In the forward transformation, each pixel of pre-event image in the first feature
space is taken and will estimate its mapping pixel in the second space corresponding to post-event image
based on the known unchanged pixels. A multi-value estimation method with the noise tolerance is
produced to determine the mapping pixel using K-nearest neighbours technique. Once the mapping pixels
of pre-event image are identified, the difference values between the mapping image and the post-event
image can be directly generated. Then the similar work is done for backward transformation to combine
the post-event image with the first space, and one more difference value for each pixel will be generated.
Then, the two difference values are taken and combined to improve the robustness of detection with respect
to the noise and heterogeneousness of images. (FRFCM) Fast and Robust Fuzzy C-means clustering
algorithm is employed to divide the integrated difference values into two clusters- changed pixels and
unchanged pixels. This detection results may contain few noisy regions as small error detections, and a
spatial-neighbor based noise filter is developed to reduce the false alarms and missing detections. The
experiments for change detection with real images of LANSAT-8 in Tuticorin between 2013-2019 are given
to validate the percentage of the changed regions in the proposed method.
KEYWORDS
Change detection, remote sensing, heterogeneous images, mapping image.
1. INTRODUCTION
The change detection of remote sensing images plays an important role in the landcover and
water bodies’ changes over a time period. The remote sensing images before (pre) and after (post)
the event may be obtained by heterogeneous sensors. To obtain the knowledge about changes,
there is necessary to identify the change detection among the two datasets of heterogeneous
remote sensing images before and after the time period. Heterogeneous images may reflect the
different characteristics of the object and they are usually obtained by different types of
sensors.[1] HPT can be broadly divided into three levels: pixel level, feature level and object
level. For the detection methods in feature level, the features such as texture, edge, statistic
measure are extracted from the original pixel information for comparison between pre-event and
post-event images.[21]-[28] The deep neural networks are recently employed for the
unsupervised feature learning to obtain the relationships of the pair of images in change detection.
In object level, the image contents are classified using unsupervised or supervised methods, and
the classification results of different images are compared and combined to detect the changes.
The image segmentation is often involved with object-level change detection to extract and
2. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
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separate the objects in the image. A number of image segmentation methods have been used, such
as region based methods (e.g. fuzzy clustering, region growing), edge or boundary based method.
The change detection methods in feature level and object level are often used for dealing with the
images in different modalities. An interesting similarity measurement between heterogeneous
images is identified and it takes the physical properties of sensor, the associated measurement
noise models and local joint distributions. The LANSAT 8 image is used to detect the changes in
the Soil, Water, Vegetation and buildings. The signature of building in the post-event and is
predicated according to the 3-D parameters derived from the pre-event optical image and the
acquisition parameters of the post-event data.[35] Then the changes are detected by comparing
the actual post-event image with the predicted image. An unsupervised nonparametric method is
developed for detecting changes among the multi-temporal LANSAT 8 images. This method
relies on an interesting feature which captures the structural change between two LANSAT 8
images. A Bayesian network is introduced for the fusion of remote sensing data, i.e. multi-
temporal LANSAT 8 images, with the ancillary information (e.g. geomorphic and other ground
information) for area detection.[2]-[3] This method can effectively reduce the false alarms and
well recognize the changed areas in the complex land cover ground conditions.
A change detection method for heterogeneous images is presented based on the change measure,
which is defined by the local statistics estimated according to the dependence of the pair of
images before and after the events. [18]It transfers the multi-source remote sensing data
represented in low-dimension observation spaces into a high-dimension feature space and an
iterative coupled dictionary learning (CDL) model is generated for unsupervised change detection
from multi-source images in the high-dimension feature space.[14]-[19] A Bayesian model
coupled with a Markov random field is generated for detecting changes from homogeneous or
heterogeneous remote sensing images, and this method mainly consists of two steps, i.e. the
image segmentation by region based approach and building a similarity measure between the
images based on the joint statistical properties of the objects. A dynamic evidential reasoning
(DER) fusion method for change detection of heterogeneous images is used. Each image is
classified first, and then DER is used to combine the classification results of different images
taking into account with available prior knowledge.
DER is able to deal with multi-temporal (more than two) images. DER has been further extended
to a more general framework called multi-dimensional evidential reasoning (MDER) to handle
the images acquired by different sensors. In the feature and object levels, different images are
compared using the features or target classification results that are derived according to the pixel
values. Some original pixel information may be lost during the process of feature selection and
classification. In the pixel level methods,[24] the normalized pixel values in different LANSAT 8
images can be compared for change detection between the homogeneous images, and the pixel
information can be fully utilized to produce good results.
The contents of heterogeneous images reflect the different characteristics of the object, and they
are generally described in distinct feature spaces like the LANSAT 8 image. Thus, the change
detection cannot be carried out by directly comparing heterogeneous images. In this work, we
consider the change detection between MAY 2013 and MAY 2018 LANSAT 8 images. A new
method is proposed to transfer one image from its original feature space where gray space with
one dimension to another space and the spectral space with three even more dimensions assuming
it is not affected by the event, and the transferred image is named mapping image. The pre-event
image and post-event image are represented in a common feature space so that their pixels values
can be easily compared for change detection. The process is called homogeneous pixel
transformation (HPT) consisting of forward and backward transformations. The expected value to
find the sufficient pixel information from HPT for pursuing as good as possible for identifying
detection performance. The image transformation between different feature spaces and some
unchanged regions in the pair of images will be selected as the prior knowledge for estimating the
3. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
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mapping image. Because of the noisy influence and the heterogeneousness of images,[29] some
pixels are very close and their values in one feature space may have more or less different values
in another space even if they are not affected by the event. Such uncertainty often causes false
alarms, and this is a big challenge in the actual estimation of mapping image.
The proposed method uses a multi-value estimation strategy using the K-nearest neighbors (K-
NN) technique to manage with this problem. In the forward transformation, for each pixel
mention x in pre-event image, their K-NN are selected from the given unchanged data according
to their pixel values, and then K corresponding pixels in the post event image are considered as
the possible estimations values for mapping of x. So the mapping pixels are calculated by the
weighted average of the K corresponding pixels in the post-event image based on the new weight
determination rule.[37] After the mapping pixel is obtained, it is now directly compared with the
actual pixel in the post-event image to get a difference value by using that pixel. Then
simultaneously do the backward transformation to associate the post-event image with the feature
space of the pre-event image, and calculate another difference value. Thus the two difference
values are obtained and are combined to further improve the robustness of detection with respect
to noise and modality difference of the images.[22]-[30] The multivalue estimation strategy joint
is the combination of forward and backward pixel transformation and is able to efficiently reduce
false alarms in change detection of heterogeneous images.
Fuzzy c-means (FCM) clustering method is generated to divide the integrated difference values
that is the sum of the two difference values of all pixels into two clusters which is 1) The changed
pixels and 2) The unchanged pixels. In the detection results, it may contain some noisy regions,
for example very small regions of false alarms and missing detections. A new noise filter is
employed to still improve the detection performance based on belief functions theory, it is good at
representing and combining the uncertain and ignorant information. [15] It is considered that the
pixels are located together which is close to each other in the space location and generally have
the similar changed or non-changed pixels.[36] So the change detection knowledge about the
spatial neighbors around one pixel will be taken into account to improve the detection result of
the pixel using Dempster’s combination rule theory with a proper discounting technique. Two
pairs of real images (e.g. LANSAT 8 images) from MAY 2013 to MAY 2018 are used to evaluate
the performance of the proposed change detection method.
The existing work is based on Remote sensing images is commonly used to monitor the earth
surface evolution. This monitoring can be conducted by detecting changes between images
acquired at different times. The iterative case is when an optical image of a given area is available
and new image is acquired in an emergency situation resulting from a natural disaster for instance
by a radar satellite.[3] In such a case, images with heterogeneous properties have to be compared
for change detection. This proposed work states a new approach for similarity measurement
between images acquired by heterogeneous sensors. The approach exploits the considered sensor
physical properties and specially the associated measurement noise models and local joint
distributions. These properties are inferred through manifold learning. The obtained similarity
measure has been applied to detect changes between many kinds of images.
2.HOMOGENEOUS PIXEL TRANSFORMATION
A pair of heterogenous images before (pre-) and after (post-) an event which are denoted by X (1st
image) and Y (2 nd
image) is used. Because the images X and Y reflect the different object
characteristics which are represented in different feature spaces X and Y, it is almost impossible to
directly compare their pixels values for change detection. In this we want to transfer the image X
from the original feature space X to another space Y considering that it is not affected by any of
the event. Then the transferred image ˆY is called the mapping image and it will be described in
4. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
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the same feature space as the post-event image Y. So the images ˆY and Y are homogeneous, and
they can be directly compared for the change detection process. In this determining the mapping
of an image plays a crucial role in the change detection method. A new homogeneous pixel
transformation (HPT) method is generated here to take out the estimation of mapping image.
[11]-[13] Some unchanged regions in the pair of images X and Y are selected at first for the prior
knowledge for HPT, and they are selected as unchanged pixel pairs and are denoted by T = {(Xn,
Yn), n = 1, . . . , N}. It is denoted that the selected pixels are not affected by the event, but there is
no idea for the content of each pixel. So they have weak prior knowledge about the pixel, and it
cannot be further used for training the supervised classifier for the image classification. The
unchanged regions easy to obtain, and it is convenient for their applications. The other pixels in
the image can be transferred from one feature space to another space based on the selected
unchanged pixel pairs. In HPT, the forward transformation to transfer the pre-event image X to
the feature space Y in which the post-event image Y is represented, and do the backward
transformation to associate the post-event image Y with the space Χ corresponding to the pre-
event image X in the same way. Now consider the forward transformation first, and it is assumed
that the image is with accurate registration. Each pixel xi in the image X, and its actual respective
pixel that are located at the same position as xi in the post-event image Y is given by yi , and then
the estimation of its mapping pixel are described in the space of Y is denoted by ŷi .
In this proposed work, a multi-value estimation strategy using K-nearest neighbors (K-NN)
technique is estimated to deal with uncertainty of pixel transformation. The K-NN of xi from the
prior knowledge of the unchanged pixels in the pre event image as ˙xi , i = 1, . . . , K with the
corresponding pixels in the post-event image as ˙yk , k = 1, . . . , K. Each of ˙yk , k = 1, . . . , K can
be considered as a potential estimation of the mapping pixel ŷi . Thus, the K pixels ˙yk, bk = 1, . . .
, K provide multiple estimations (i.e. potential range) for ŷi . Hence, the value of mapping pixel ŷi
can be approximated by the weighted sum of ˙yi , i = 1, . . . , K, and it is given by eq. (1).
Ŷi (1)
The determination of the weighting factors wk , k = 1, . . . , K in (1) is a main key in the
calculation of the mapping pixel ŷi . Where exists some related methods which are used to
calculate the weighting factors wk , k = 1, . . . , K in the field of pattern classification. In the
incomplete pattern classification problem, the missing attributes values are given based on the
known attribute values using the K-NN technique. This is considered that if their known attribute
value from one pattern is quite close to another pattern that is training data and their missing part
should be also very close to their corresponding part of their training pattern. So that the K-NN of
the incomplete pattern are detected respective to their known attributes, and the missing attributes
of their pattern will be filled by the weight average of their selected K neighbors. The weighted
factors are usually calculated according to the distance between the pattern and their selected
neighbors in the known attributes. The bigger distance in them leads to the smaller weighting
factor. The change detection of heterogeneous images in the realistic situation is very
complicated. Some pixels are found closer to xi than other pixels in pre-event image, but their
corresponding pixels are not so close to yi as these other pixels in post-event image because of
their noisy factor and their detection of heterogeneousness. A pair of real images LANSAT 8
from MAY 2013 and MAY 2018 are acquired for Tuticorin region and the changes for being
detected for every regions.
5. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
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(a) (b)
Figure 1: The LANSAT 8 images are given as input images and the comparison is done for images between
may 2013 and may 2018.(a) may 2013, (b) may 2018
In the estimation of the mapping pixel value ŷi by eq. (1), the exponential function often
used in the weighted K-NN classifier is employed here to calculate the weighting factor
of each selected pixel ˙yk , k = 1, . . . , K.
(2)
where is a tuning parameter to control the distance influence in the calculation of
weighting factor, and determination of the parameter will be explained later. For
convenience of applications, dͯ
k is defined by the normalized distance measure.
(3)
where ║・║ represents the normal Euclidean distance. The estimated mapping pixel value ŷi
will be found close to the selected pixels and thay are very near to yi . If the pixel yi is seriously
affected by the event, the actual pixel yi generally will become far away from all the K selected
pixels ˙yk , k = 1, . . . , K. Because the mapping pixel ŷi defined by the weighted sum of ˙yk, k = 1,
. . . , K as eq. (1) and (2) always lies around these K selected pixels, the distance between ŷi and yi
will be also very large.
For the remaining pixels in the pre event image, the difference values of the mapping pixels and
the actual pixels in the post event image can be calculated. The difference image (DI) between
Ŷand Y is obtained.
3.FAST AND ROBUST FUZZY C-MEANS CLUSTERING ALGORITHM
The homogeneous pixel transformation is used for separating the original image pixels into post
event and pre event pixels. After the separation of respective pixels they are being represented in
the projection plane based on their pixel value. Based on their pixel value in the projection plane
the two LANSAT 8 images are compared and the changed regions are being detected for every
regions.
6. Advances in Engineering: an International Journal (ADEIJ), Vol.2, No.3
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(a) (b)
Figure 2: Images represented in Projection Plane (a) may 2013, (b) may 2018
FRFCM is used for dividing the pixel into two clusters whereas the changed pixel and the
unchanged pixels according to their difference pixel values. The output pixel will be belonging to
the each cluster. Fuzzy c-means (FCM) algorithms with spatial constraints (FCMS) have been
used for effective image segmentation. They have the following disadvantages: (1) The
introduction of local spatial information which is corresponding to the objective functions
improves their insensitiveness to noise to some extent, where they still lack enough in robustness
to noise and outliers in the absence of prior knowledge of the noise; (2) The objective functions,
exists a crucial parameter α used to balance between robustness to noise and effectiveness of
preserving the details of the particular image and it is selected generally through experience (3)
the time taken for segmenting an image is based on the size of the image, hence the larger the size
of the image takes the more time in segmentation. Because of the complex variety of the
heterogeneous images, the change detection results directly generated by FCM may still contain
some noisy regions whereas small regions of false alarms and miss detections in the
classification. The proper modification of the clustering results needs to improve the detection
performance.
In the heterogeneous images, the noisy influence obtained and their difference of modalities in the
images are large for some pixels in some case. Then the K selected pixels with close values to xi
in the pre-event image could be far away from yi which is corresponding to xi in the post-event
image and if there is no change occurred. In such situation, it is important to make false detection
based on the pixel transformation from one direction which is froward transformation. In this case
if we do the opposite transformation which is backward transformation it is associated to yi with
the feature space X of the pre-event image and some pixels with close values to yi in the post-
event image may be also with their close values to the xi in the pre-event image. Therefore, the
fusion of forward and backward pixel transformation will improve the robustness of change
detection. The change detected areas are represented by taking the common pixels from each
image and clustered together.
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Figure 3: Change Detected Regions
4.EXPERIMENTAL RESULTS
The proposed work uses Homogeneous Pixel Transformation technique for the purpose of
Change detection and Region classification from this the Percentage for Change detected areas
are being generated. The tool MATLAB 2016 is used to implement the proposed methodology.
The training and testing were carried out in Windows 7 environment configured by Intel Pentium
CPU 1.70GHz, 4GB RAM and 500GB storage. The LANSAT 8 images are given as input images
and the comparison is done for images between May 2013 and May 2018. Based on the
comparison results the percentages of change detected areas are calculated. The input images are
represented in projection space and the pixel values are taken for detecting the changes in the
input images. The common changes between two different time series are detected and
represented in same image. The images are represented in separate regions as land, water, soil and
vegetation based on their pixel value for May 2013 and May 2018 based on this the changes are
detected separately for every region. After applying the Homogeneous Pixel Transformation
technique and Fast Robust Fuzzy C-Means Clustering algorithm the changes are being detected
for every region and are represented. The amount of change detected regions based on land,
water, soil and vegetation are identified and they are compared with two time series images and
their percentages are calculated.
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(a) Water region (b) Soil region
(c) Vegetation region (d) Building region
Figure 4: Detected regions are separated based on their land area as (a) Water region (b) Soil region
(c) Vegetation region (d) Building region on may 2013
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(a) Water region (b) Soil region
(c) Vegetation region (d) Building region
Figure 5: Detected regions are separated based on their land area as (a) Water region (b) Soil region (c)
Vegetation region (d) Building region on may 2018
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5.PERCENTAGE CALCULATION FOR EVERY REGION
Table 1: Percentage Calculation
The percentages are being calculated for every regions based on their changed pixel value. From
this the Soil area is found with the 57.3656 percent of changes detected from May 2013-2018.
This is found to be the highest change detected based on HPT. Then the Vegetation area is found
with 56.0658 detected changes and Building is with 48.5636 and Water with 7.3016 percent
respectively. These percent of change detected regions are generated accurately eliminating the
noise factors to improve the performance levels.
6.CONCLUSION
A new change detection method for the heterogeneous remote sensing images has been proposed
via homogeneous pixel transformation (HPT). HPT consisting of the forward and backward
operations is to associate one image with the feature space of another image based on the prior
known unchanged pixel pairs. By doing this, the pre-event and post event images are represented
in a common feature space for the convenience of change detection. In heterogeneous images, the
pixels with close values in one feature space may have more or less different values in another
space due to noisy influence and modality difference, and such uncertainty often causes false
detections. A new multi-value estimation method is introduced using K-nearest neighbors (K-
NN) technique to Scope with the uncertainty in pixel transformation. The two difference values
are combined in order to further improve the robustness of the detection method against noise and
heterogeneousness of images. FCM algorithm is employed for clustering the integrated difference
values of all pixels, and the changes are recognized by the clustering results. The experimental
results show that HPT can efficiently improve the detection accuracy and reduce the false alarms
with respect to other related methods. In the future work, we will extend the applications of HPT
in more kinds of remote sensing images.
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