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
Multi modal face recognition using block based curvelet featuresijcga
In this paper, we present multimodal 2D +3D face recognition method using block based curvelet features. The 3D surface of face (Depth Map) is computed from the stereo face images using stereo vision technique. The statistical measures such as mean, standard deviation, variance and entropy are extracted from each block of curvelet subband for both depth and intensity images independently.In order to compute the decision score, the KNN classifier is employed independently for both intensity and depth map. Further, computed decision scoresof intensity and depth map are combined at decision level to improve the face recognition rate. The combination of intensity and depth map is verified experimentally using benchmark face database. The experimental results show that the proposed multimodal method is better than individual modality.
An Accurate Facial Component Detection Using Gabor FilterjournalBEEI
Face detection is a critical task to be resolved in a variety of applications. Since faces include various expressions it becomes a difficult task to detect the exact output. Face detection not only play a main role in personal identification but also in various fields which includes but not limited to image processing, pattern recognition, graphics and other application areas. The proposed system performs the face detection and facial components using Gabor filter. The results show accurate detection of facial components
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
In this paper, we present an automatic application of 3D face recognition system using geodesic distance in Riemannian geometry. We consider, in this approach, the three dimensional face images as residing in Riemannian manifold and we compute the geodesic distance using the Jacobi iterations as a solution of the Eikonal equation. The problem of solving the Eikonal equation, unstructured simplified meshes of 3D face surface, such as tetrahedral and triangles are important for accurately modeling material interfaces and curved domains, which are approximations to curved surfaces in R3. In the classifying steps, we use: Neural Networks (NN), K-Nearest Neighbor (KNN) and Support Vector Machines (SVM). To test this method and evaluate its performance, a simulation series of experiments were performed on 3D Shape REtrieval Contest 2008 database (SHREC2008).
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.
Multi modal face recognition using block based curvelet featuresijcga
In this paper, we present multimodal 2D +3D face recognition method using block based curvelet features. The 3D surface of face (Depth Map) is computed from the stereo face images using stereo vision technique. The statistical measures such as mean, standard deviation, variance and entropy are extracted from each block of curvelet subband for both depth and intensity images independently.In order to compute the decision score, the KNN classifier is employed independently for both intensity and depth map. Further, computed decision scoresof intensity and depth map are combined at decision level to improve the face recognition rate. The combination of intensity and depth map is verified experimentally using benchmark face database. The experimental results show that the proposed multimodal method is better than individual modality.
An Accurate Facial Component Detection Using Gabor FilterjournalBEEI
Face detection is a critical task to be resolved in a variety of applications. Since faces include various expressions it becomes a difficult task to detect the exact output. Face detection not only play a main role in personal identification but also in various fields which includes but not limited to image processing, pattern recognition, graphics and other application areas. The proposed system performs the face detection and facial components using Gabor filter. The results show accurate detection of facial components
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
In this paper, we present an automatic application of 3D face recognition system using geodesic distance in Riemannian geometry. We consider, in this approach, the three dimensional face images as residing in Riemannian manifold and we compute the geodesic distance using the Jacobi iterations as a solution of the Eikonal equation. The problem of solving the Eikonal equation, unstructured simplified meshes of 3D face surface, such as tetrahedral and triangles are important for accurately modeling material interfaces and curved domains, which are approximations to curved surfaces in R3. In the classifying steps, we use: Neural Networks (NN), K-Nearest Neighbor (KNN) and Support Vector Machines (SVM). To test this method and evaluate its performance, a simulation series of experiments were performed on 3D Shape REtrieval Contest 2008 database (SHREC2008).
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.
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
A Novel Mathematical Based Method for Generating Virtual Samples from a Front...CSCJournals
This paper deals with one sample face recognition which is a new challenging problem in pattern recognition. In the proposed method, the frontal 2D face image of each person divided to some sub-regions. After computing the 3D shape of each sub-region, a fusion scheme is applied on sub-regions to create a total 3D shape for whole face image. Then, 2D face image is added to the corresponding 3D shape to construct 3D face image. Finally by rotating the 3D face image, virtual samples with different views are generated. Experimental results on ORL dataset using nearest neighbor as classifier reveal an improvement about 5% in recognition rate for one sample per person by enlarging training set using generated virtual samples. Compared with other related works, the proposed method has the following advantages: 1) only one single frontal face is required for face recognition and the outputs are virtual images with variant views for each individual 2) need only 3 key points of face (eyes and nose) 3) 3D shape estimation for generating virtual samples is fully automatic and faster than other 3D reconstruction approaches 4) it is fully mathematical with no training phase and the estimated 3D model is unique for each individual.
Image Processing for Rapidly Eye Detection based on Robust Haar Sliding Window IJECEIAES
Object Detection using Haar Cascade Clasifier widely applied in several devices and applications as a medium of interaction between human and computer such as a tool control that utilizes the detection of eye movements. Obviously speed and precision in the detection process such as eyes, has an effect if implemented on a device. If the eye could not detect accurately, controlling device systems could reach bad detection as well. The proposed method can be used as an approach to detect the eye region of eye based on haar classifier method by means of modifying the direction of sliding window. In which, it was initially placed in the middle position of image on facial area by assuming the location of eyes area in the central region of the image. While the window region of conventional haar cascade scan the whole of image start from the left top corner. From the experiment by using our proposed method, it can speed up the the computation time and improve accuracy significantly reach to 92,4%.
EV-SIFT - An Extended Scale Invariant Face Recognition for Plastic Surgery Fa...IJECEIAES
This paper presents a new technique called Entropy based SIFT (EV-SIFT) for accurate face recognition after the plastic surgery. The corresponding feature extracts the key points and volume of the scale-space structure for which the information rate is determined. This provides least effect on uncertain variations in the face since the entropy is the higher order statistical feature. The corresponding EV-SIFT features are applied to the Support vector machine for classification. The normal SIFT feature extracts the key points based on the contrast of the image and the V- SIFT feature extracts the key points based on the volume of the structure. However, the EV- SIFT method provides both the contrast and volume information. Thus EV-SIFT provide better performance when compared with PCA, normal SIFT and VSIFT based feature extraction.
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.
Edge detection of herbal plants is a set of mathematical methods which aim at identifying points in a digital image at which the image brightness changes sharply and has discontinuities. They are defined as the set of curved line segments termed edges. Effective edge detection for microscopic image of herbal plant is proposed through this paper which compares the edge detected images and then performs further segmentation. Comparison between Sobel operator, Prewitt, Canny and Robert cross operators is performed. Our method after efficient edge detection performs Gabor filter and K-means clustering to procure a better image. It is then subjected to further segmentation. Experimental methods in our proposed algorithm show that our method achieves a better edge detection as compared to other edge detector operators. Our proposed algorithm provides the maximum PSNR value of 43.684 amongst the other commercial edge detection operators.
50Combining Color Spaces for Human Skin Detection in Color Images using Skin ...idescitation
Skin detection remains a challenging task over
several decades in spite of many techniques evolved. It is the
elementary step of most of the computer vision applications
like face recognition, human computer interaction, etc. It
depends on the suitability of color space chosen, skin modeling
and classification of skin and non-skin pixels under varying
illumination conditions. This paper presents a symbolic
interpretation on the performance of the color spaces using
piecewise linear decision boundary classifier in color images
to find the winning color space (s). The whole task is divided
into three processes: analysis of color spaces individually;
analysis of the combination of two color spaces; and finally
making a comparative analysis among the results obtained by
the above two processes. For performing the fair evaluation,
the whole experiment is tested over commonly used databases.
Based on the success rate, false positive and false negative of
each color spaces, the winner(s) has been chosen among single
and the combination of color spaces.
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
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
MULTI SCALE ICA BASED IRIS RECOGNITION USING BSIF AND HOG sipij
Iris is a physiological biometric trait, which is unique among all biometric traits to recognize person
effectively. In this paper we propose Multi-scale Independent Component Analysis (ICA) based Iris
Recognition using Binarized Statistical Image Features (BSIF) and Histogram of Gradient orientation
(HOG). The Left and Right portion is extracted from eye images of CASIA V 1.0 database leaving top and
bottom portion of iris. The multi-scale ICA filter sizes of 5X5, 7X7 and 17X17 are used to correlate with
iris template to obtain BSIF. The HOGs are applied on BSIFs to extract initial features. The final feature is
obtained by fusing three HOGs. The Euclidian Distance is used to compare the final feature of database
image with test image final features to compute performance parameters. It is observed that the
performance of the proposed method is better compared to existing methods.
A Hybrid Approach to Face Detection And Feature Extractioniosrjce
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.
Hand gesture classification is popularly used in
wide applications like Human-Machine Interface, Virtual
Reality, Sign Language Recognition, Animations etc. The
classification accuracy of static gestures depends on the
technique used to extract the features as well as the classifier
used in the system. To achieve the invariance to illumination
against complex background, experimentation has been
carried out to generate a feature vector based on skin color
detection by fusing the Fourier descriptors of the image with
its geometrical features. Such feature vectors are then used in
Neural Network environment implementing Back
Propagation algorithm to classify the hand gestures. The set
of images for the hand gestures used in the proposed research
work are collected from the standard databases viz.
Sebastien Marcel Database, Cambridge Hand Gesture Data
set and NUS Hand Posture dataset. An average classification
accuracy of 95.25% has been observed which is on par with
that reported in the literature by the earlier researchers.
Handwritten Character Recognition: A Comprehensive Review on Geometrical Anal...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.
Happiness Expression Recognition at Different Age ConditionsEditor IJMTER
Recognition of different internal emotions of human face under various critical
conditions is a difficult task. Facial expression recognition with different age variations is
considered in this study. This paper emphasizes on recognition of facial expression like
happiness mood of nine persons using subspace methods. This paper mainly focuses on new
robust subspace method which is based on Proposed Euclidean Distance Score Level Fusion
(PEDSLF) using PCA, ICA, SVD methods. All these methods and new robust method is
tested with FGNET database. An automatic recognition of facial expressions is being carried
out. Comparative analysis results surpluses PEDSLF method is more accurate for happiness
emotional facial expression recognition.
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.
A New Approach of Iris Detection and RecognitionIJECEIAES
This paper proposes an IRIS recognition and detection model for measuring the e-security. This proposed model consists of the following blocks: segmentation and normalization, feature encoding and feature extraction, and classification. In first phase, histogram equalization and canny edge detection is used for object detection. And then, Hough Transformation is utilized for detecting the center of the pupil of an IRIS. In second phase, Daugmen’s Rubber Sheet model and Log Gabor filter is used for normalization and encoding and as a feature extraction method GNS (Global Neighborhood Structure) map is used, finally extracted feature of GNS is feed to the SVM (Support Vector Machine) for training and testing. For our tested dataset, experimental results demonstrate 92% accuracy in real portion and 86% accuracy in imaginary portion for both eyes. In addition, our proposed model outperforms than other two conventional methods exhibiting higher accuracy.
Multimodal Approach for Face Recognition using 3D-2D Face Feature FusionCSCJournals
3D Face recognition has been an area of interest among researchers for the past few decades especially in pattern recognition. The main advantage of 3D Face recognition is the availability of geometrical information of the face structure which is more or less unique for a subject. This paper focuses on the problems of person identification using 3D Face data. Use of unregistered 3D Face data for feature extraction significantly increases the operational speed of the system with huge database enrollment. In this work, unregistered 3D Face data is fed to a classifier in multiple spectral representations of the same data. Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) are used for the spectral representations. The face recognition accuracy obtained when the feature extractors are used individually is evaluated. The use of depth information alone in different spectral representation was not sufficient to increase the recognition rate. So a fusion of texture and depth information of face is proposed. Fusion of the matching scores proves that the recognition accuracy can be improved significantly by fusion of scores of multiple representations. FRAV3D database is used for testing the algorithm.
A Spectral Domain Local Feature Extraction Algorithm for Face RecognitionCSCJournals
In this paper, a spectral domain feature extraction algorithm for face recognition is proposed, which efficiently exploits the local spatial variations in a face image. For the purpose of feature extraction, instead of considering the entire face image, an entropy-based local band selection criterion is developed, which selects high-informative horizontal bands from the face image. In order to capture the local variations within these high-informative horizontal bands precisely, a feature selection algorithm based on two-dimensional discrete Fourier transform (2D-DFT) is proposed. Magnitudes corresponding to the dominant 2D-DFT coefficients are selected as features and shown to provide high within-class compactness and high between-class separability. A principal component analysis is performed to further reduce the dimensionality of the feature space. Extensive experimentations have been carried out upon standard face databases and the recognition performance is compared with some of the existing face recognition schemes. It is found that the proposed method offers not only computational savings but also a very high degree of recognition accuracy.
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.
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
A Novel Mathematical Based Method for Generating Virtual Samples from a Front...CSCJournals
This paper deals with one sample face recognition which is a new challenging problem in pattern recognition. In the proposed method, the frontal 2D face image of each person divided to some sub-regions. After computing the 3D shape of each sub-region, a fusion scheme is applied on sub-regions to create a total 3D shape for whole face image. Then, 2D face image is added to the corresponding 3D shape to construct 3D face image. Finally by rotating the 3D face image, virtual samples with different views are generated. Experimental results on ORL dataset using nearest neighbor as classifier reveal an improvement about 5% in recognition rate for one sample per person by enlarging training set using generated virtual samples. Compared with other related works, the proposed method has the following advantages: 1) only one single frontal face is required for face recognition and the outputs are virtual images with variant views for each individual 2) need only 3 key points of face (eyes and nose) 3) 3D shape estimation for generating virtual samples is fully automatic and faster than other 3D reconstruction approaches 4) it is fully mathematical with no training phase and the estimated 3D model is unique for each individual.
Image Processing for Rapidly Eye Detection based on Robust Haar Sliding Window IJECEIAES
Object Detection using Haar Cascade Clasifier widely applied in several devices and applications as a medium of interaction between human and computer such as a tool control that utilizes the detection of eye movements. Obviously speed and precision in the detection process such as eyes, has an effect if implemented on a device. If the eye could not detect accurately, controlling device systems could reach bad detection as well. The proposed method can be used as an approach to detect the eye region of eye based on haar classifier method by means of modifying the direction of sliding window. In which, it was initially placed in the middle position of image on facial area by assuming the location of eyes area in the central region of the image. While the window region of conventional haar cascade scan the whole of image start from the left top corner. From the experiment by using our proposed method, it can speed up the the computation time and improve accuracy significantly reach to 92,4%.
EV-SIFT - An Extended Scale Invariant Face Recognition for Plastic Surgery Fa...IJECEIAES
This paper presents a new technique called Entropy based SIFT (EV-SIFT) for accurate face recognition after the plastic surgery. The corresponding feature extracts the key points and volume of the scale-space structure for which the information rate is determined. This provides least effect on uncertain variations in the face since the entropy is the higher order statistical feature. The corresponding EV-SIFT features are applied to the Support vector machine for classification. The normal SIFT feature extracts the key points based on the contrast of the image and the V- SIFT feature extracts the key points based on the volume of the structure. However, the EV- SIFT method provides both the contrast and volume information. Thus EV-SIFT provide better performance when compared with PCA, normal SIFT and VSIFT based feature extraction.
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.
Edge detection of herbal plants is a set of mathematical methods which aim at identifying points in a digital image at which the image brightness changes sharply and has discontinuities. They are defined as the set of curved line segments termed edges. Effective edge detection for microscopic image of herbal plant is proposed through this paper which compares the edge detected images and then performs further segmentation. Comparison between Sobel operator, Prewitt, Canny and Robert cross operators is performed. Our method after efficient edge detection performs Gabor filter and K-means clustering to procure a better image. It is then subjected to further segmentation. Experimental methods in our proposed algorithm show that our method achieves a better edge detection as compared to other edge detector operators. Our proposed algorithm provides the maximum PSNR value of 43.684 amongst the other commercial edge detection operators.
50Combining Color Spaces for Human Skin Detection in Color Images using Skin ...idescitation
Skin detection remains a challenging task over
several decades in spite of many techniques evolved. It is the
elementary step of most of the computer vision applications
like face recognition, human computer interaction, etc. It
depends on the suitability of color space chosen, skin modeling
and classification of skin and non-skin pixels under varying
illumination conditions. This paper presents a symbolic
interpretation on the performance of the color spaces using
piecewise linear decision boundary classifier in color images
to find the winning color space (s). The whole task is divided
into three processes: analysis of color spaces individually;
analysis of the combination of two color spaces; and finally
making a comparative analysis among the results obtained by
the above two processes. For performing the fair evaluation,
the whole experiment is tested over commonly used databases.
Based on the success rate, false positive and false negative of
each color spaces, the winner(s) has been chosen among single
and the combination of color spaces.
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
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
MULTI SCALE ICA BASED IRIS RECOGNITION USING BSIF AND HOG sipij
Iris is a physiological biometric trait, which is unique among all biometric traits to recognize person
effectively. In this paper we propose Multi-scale Independent Component Analysis (ICA) based Iris
Recognition using Binarized Statistical Image Features (BSIF) and Histogram of Gradient orientation
(HOG). The Left and Right portion is extracted from eye images of CASIA V 1.0 database leaving top and
bottom portion of iris. The multi-scale ICA filter sizes of 5X5, 7X7 and 17X17 are used to correlate with
iris template to obtain BSIF. The HOGs are applied on BSIFs to extract initial features. The final feature is
obtained by fusing three HOGs. The Euclidian Distance is used to compare the final feature of database
image with test image final features to compute performance parameters. It is observed that the
performance of the proposed method is better compared to existing methods.
A Hybrid Approach to Face Detection And Feature Extractioniosrjce
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.
Hand gesture classification is popularly used in
wide applications like Human-Machine Interface, Virtual
Reality, Sign Language Recognition, Animations etc. The
classification accuracy of static gestures depends on the
technique used to extract the features as well as the classifier
used in the system. To achieve the invariance to illumination
against complex background, experimentation has been
carried out to generate a feature vector based on skin color
detection by fusing the Fourier descriptors of the image with
its geometrical features. Such feature vectors are then used in
Neural Network environment implementing Back
Propagation algorithm to classify the hand gestures. The set
of images for the hand gestures used in the proposed research
work are collected from the standard databases viz.
Sebastien Marcel Database, Cambridge Hand Gesture Data
set and NUS Hand Posture dataset. An average classification
accuracy of 95.25% has been observed which is on par with
that reported in the literature by the earlier researchers.
Handwritten Character Recognition: A Comprehensive Review on Geometrical Anal...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.
Happiness Expression Recognition at Different Age ConditionsEditor IJMTER
Recognition of different internal emotions of human face under various critical
conditions is a difficult task. Facial expression recognition with different age variations is
considered in this study. This paper emphasizes on recognition of facial expression like
happiness mood of nine persons using subspace methods. This paper mainly focuses on new
robust subspace method which is based on Proposed Euclidean Distance Score Level Fusion
(PEDSLF) using PCA, ICA, SVD methods. All these methods and new robust method is
tested with FGNET database. An automatic recognition of facial expressions is being carried
out. Comparative analysis results surpluses PEDSLF method is more accurate for happiness
emotional facial expression recognition.
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.
A New Approach of Iris Detection and RecognitionIJECEIAES
This paper proposes an IRIS recognition and detection model for measuring the e-security. This proposed model consists of the following blocks: segmentation and normalization, feature encoding and feature extraction, and classification. In first phase, histogram equalization and canny edge detection is used for object detection. And then, Hough Transformation is utilized for detecting the center of the pupil of an IRIS. In second phase, Daugmen’s Rubber Sheet model and Log Gabor filter is used for normalization and encoding and as a feature extraction method GNS (Global Neighborhood Structure) map is used, finally extracted feature of GNS is feed to the SVM (Support Vector Machine) for training and testing. For our tested dataset, experimental results demonstrate 92% accuracy in real portion and 86% accuracy in imaginary portion for both eyes. In addition, our proposed model outperforms than other two conventional methods exhibiting higher accuracy.
Multimodal Approach for Face Recognition using 3D-2D Face Feature FusionCSCJournals
3D Face recognition has been an area of interest among researchers for the past few decades especially in pattern recognition. The main advantage of 3D Face recognition is the availability of geometrical information of the face structure which is more or less unique for a subject. This paper focuses on the problems of person identification using 3D Face data. Use of unregistered 3D Face data for feature extraction significantly increases the operational speed of the system with huge database enrollment. In this work, unregistered 3D Face data is fed to a classifier in multiple spectral representations of the same data. Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) are used for the spectral representations. The face recognition accuracy obtained when the feature extractors are used individually is evaluated. The use of depth information alone in different spectral representation was not sufficient to increase the recognition rate. So a fusion of texture and depth information of face is proposed. Fusion of the matching scores proves that the recognition accuracy can be improved significantly by fusion of scores of multiple representations. FRAV3D database is used for testing the algorithm.
A Spectral Domain Local Feature Extraction Algorithm for Face RecognitionCSCJournals
In this paper, a spectral domain feature extraction algorithm for face recognition is proposed, which efficiently exploits the local spatial variations in a face image. For the purpose of feature extraction, instead of considering the entire face image, an entropy-based local band selection criterion is developed, which selects high-informative horizontal bands from the face image. In order to capture the local variations within these high-informative horizontal bands precisely, a feature selection algorithm based on two-dimensional discrete Fourier transform (2D-DFT) is proposed. Magnitudes corresponding to the dominant 2D-DFT coefficients are selected as features and shown to provide high within-class compactness and high between-class separability. A principal component analysis is performed to further reduce the dimensionality of the feature space. Extensive experimentations have been carried out upon standard face databases and the recognition performance is compared with some of the existing face recognition schemes. It is found that the proposed method offers not only computational savings but also a very high degree of recognition accuracy.
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 extended database reverse engineering – a key for database forensic invest...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.
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.
Building extraction from remote sensing imageries by data fusion techniqueseSAT 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.
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.
Study on shear strength characteristics of coir mat reinforced sandeSAT 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.
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.
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
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.
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
Fuzzy based control using lab view for miso temperature processeSAT 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.
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
Design of a modified leaf spring with an integrated damping system for added ...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
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
Yawning analysis for driver drowsiness detectioneSAT Journals
Abstract Driver fatigue is the main reason for fatal road accidents around the world. In this paper, an efficient driver’s drowsiness detection system is designed using yawning detection.Here, we consider eye detection and mouth detection. So that road accidents can avoid successfully. Mouth features points are identified using the redness property. Firstly detecting the driver’s face using YCbCr method then face tracking will perform using canny edge detector. After that , eyes and mouth positions by using Haar features. Lastly yawning detection is perform by using mouth geometric features. This method is tested on images from videos. Also proposed system should then alert to the driver in case of inattention. Keywords: Face detection, Face tracking, Eye and Mouth detection, Yawn detection
Skin Detection Based on Color Model and Low Level Features Combined with Expl...IJERA Editor
Skin detection is active research area in the field of computer vision which can be applied in the application of
face detection, eye detection, etc. These detection helps in various applications such as driver fatigue monitoring
system, surveillance system etc. In Computer vision applications, the color model and representations of the
human image in color model is one of major module to detect the skin pixels. The mainstream technology is
based on the individual pixels and selection of the pixels to detect the skin part in the whole image. In this thesis
implementation, we presents a novel technique for skin color detection incorporating with explicit region based
and parametric based approach which gives the better efficiency and performances in terms of skin detection in
human images. Color models and image quantization technique is used to extract the regions of the images and
to represent the image in a particular color model such as RGB and HSV, and then the parametric based
approach is applied by selecting the low level skin features are applied to extract the skin and non-skin pixels of
the images. In the first step, our technique uses the state-of-the-art non-parametric approach which we call the
template based technique or explicitly defined skin regions technique. Then the low level features of the human
skin are being extracted such as edge, corner detection which is also known as parametric method. The
experimental results depict the improvement in detection rate of the skin pixels by this novel approach. And in
the end we discuss the experimental results to prove the algorithmic improvements.
In recent days, skin cancer is seen as one of the most Hazardous form of the cancer found in Humans. Skin Cancer is a malignant tumor that grows in the skin cells. It can be affected mostly by the reason of skin burn caused by sunlight. Early detection and treatment of Skin cancer can significantly improve patient outcome. Automatic detection is one of the most challenging research areas that can be used for early detection of such vital cancer. A person’s in which they have inadequate amount of melanoma will be exposed to the risk of sun burns and the ultra violet rays from the sun will be affected that body. Malignant melanomas is a type of melanoma that has irregular borders, color variations so analyze the shape, color and texture of the skin lesion is important for the early detection. It can have the components of an automated image analysis module, which contains image acquisition, hair detection and exclusion, lesion segmentation, feature extraction and finally classification. Finally the result show that the system is efficient achieving classification of the lesion as either melanoma or Non melanoma causes.
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.
A novel medical image segmentation and classification using combined feature ...eSAT Journals
Abstract Diagnosis is the first step before giving a medicine to the patient. In the recent past such diagnosis is performed using medical images where segmentation is the prime part in the medical image retrieval which improves the feature set that is collected from the segmented image. In this paper, it is proposed to segment the medical image a semi decision algorithm that can segment only the tumor part from the CT image. Further texture based techniques are used to extract the feature vector from the segmented region of interest. Medical images under test are classified using decision tree classifier. Results show better performance in terms of accuracy when compared to the conventional methods. Key Words: Medical Images, Decision Tree Classifier, Segmentation, Semi-decision algorithm
Real time voting system using face recognition for different expressions and ...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
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
Region based elimination of noise pixels towards optimized classifier models ...IJERA Editor
The extraction of the skin pixels in a human image and rejection of non-skin pixels is called the skin segmentation. Skin pixel detection is the process of extracting the skin pixels in a human image which is typically used as a pre-processing step to extract the face regions from human image. In past, there are several computer vision approaches and techniques have been developed for skin pixel detection. In the process of skin detection, given pixels are been transformed into an appropriate color space such as RGB, HSV etc. And then skin classifier model have been applied to label the pixel into skin or non-skin regions. Here in this research a “Region based elimination of noise pixels and performance analysis of classifier models for skin pixel detection applied on human images” would be performed which involve the process of image representation in color models, elimination of non-skin pixels in the image, and then pre-processing and cleansing of the collected data, feature selection of the human image and then building the model for classifier. In this research and implementation of skin pixels classifier models are proposed with their comparative performance analysis. The definition of the feature vector is simply the selection of skin pixels from the human image or stack of human images. The performance is evaluated by comparing and analysing skin colour segmentation algorithms. During the course of research implementation, efforts are iterative which help in selection of optimized skin classifier based on the machine learning algorithms and their performance analysis.
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.
Effectual Face Recognition System for Uncontrolled IlluminationIIRindia
Facial recognition systems are biometric methods used to pinpoint the identities of faces present in various digital formats by comparing them to facial databases. The variation in illuminating conditions is a huge hindrance for efficient operation of facial verification systems. The effects of change in ambient lighting conditions and formation of shadows can be nullified by an effortless pre-processing system. This paper presents an effectual Facial Recognition System which consists of three stages: the illumination insensitive preprocessing method, Feature Extraction and Score Fusion. In the preprocessing stage, the light-sensitive images are converted to light-insensitive images so that uncontrolled lighting will no more be a liability for any kind of identification. In the feature extraction stage, hybrid Fourier classifiers are used to obtain transforms which are projected into subspaces using PCLDA Theory. And the output is passed onto the Score Fusion stage where the discriminating powers of the classifiers are unified by using LLR and knowing the ground truth optimizations. This proposal has passed the Face Recognition Grand Challenge (FRGC) Version-2 Experiment, Extended Yale B and FERET datasets.
A comparison of image segmentation techniques, otsu and watershed for x ray i...eSAT Journals
Abstract The most dangerous and rapidly spreading disease in the world is Tuberculosis. In the investigating for suspected tuberculosis (TB), chest radiography is the only key techniques of diagnosis based on the medical imaging So, Computer aided diagnosis (CAD) has been popular and many researchers are interested in this research areas and different approaches have been proposed for the TB detection. Image segmentation plays a great importance in most medical imaging, by extracting the anatomical structures from images. There exist many image segmentation techniques in the literature, each of them having their own advantages and disadvantages. The aim of X-ray segmentation is to subdivide the image in different portions, so that it can help during the study the structure of the bone, for the detection of disorder. The goal of this paper is to review the most important image segmentation methods starting from a data base composed by real X-ray images. Keywords— chest radiography, computer aided diagnosis, image segmentation, anatomical structures, real X-rays.
Efficient Facial Expression and Face Recognition using Ranking MethodIJERA Editor
Expression detection is useful as a non-invasive method of lie detection and behaviour prediction. However, these facial expressions may be difficult to detect to the untrained eye. In this paper we implements facial expression recognition techniques using Ranking Method. The human face plays an important role in our social interaction, conveying people's identity. Using human face as a key to security, the biometrics face recognition technology has received significant attention in the past several years. Experiments are performed using standard database like surprise, sad and happiness. The universally accepted three principal emotions to be recognized are: surprise, sad and happiness along with neutral.
Review of Image Segmentation Techniques based on Region Merging ApproachEditor IJMTER
Image segmentation is an important task in computer vision and object recognition. Since
fully automatic image segmentation is usually very hard for natural images, interactive schemes with a
few simple user inputs are good solutions. In image segmentation the image is dividing into various
segments for processing images. The complexity of image content is a bigger challenge for carrying out
automatic image segmentation. On regions based scheme, the images are merged based on the similarity
criteria depending upon comparing the mean values of both the regions to be merged. So, the similar
regions are then merged and the dissimilar regions are merged together.
Hand gesture recognition system for human computer interaction using contour ...eSAT Journals
Abstract
Hand gesture recognition is a very challenging topic for real life applications because of its requirements on the robustness, accuracy and efficiency. This paper describes a system that enable a user to perform computer operations using hand gesture with a simple web camera as input device. This system involves four phases namely image acquisition, image pre-processing, feature extraction and gesture recognition. In the first phase, the input image is acquired with the help of a camera. In the second phase, the skin color of hand region is detected using HSV color space and morphological operations such as erosion and dilation are performed to remove noise followed by smoothing and thresholding of hand image. In Feature extraction phase, contours of hand image are detected. Finally, Gesture recognition phase includes recognizing hand gestures using contour analysis by comparing Auto-Correlation Function (ACF) amongst the contours and if they are close, then calculate Inter-Correlation Function (ICF) to truly determine similarity. Each recognized gesture is assigned with the corresponding action.
Keywords: Hand gesture recognition, human computer interaction, contour analysis, HSV color space.
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Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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Face detection for video summary using enhancement based fusion strategy
1. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Special Issue: 03 | May-2014 | NCRIET-2014, Available @ http://www.ijret.org 69
FACE DETECTION FOR VIDEO SUMMARY USING ENHANCEMENT BASED FUSION STRATEGY Richa Mishra1, Ravi Subban2 1Research Scholar, Department of Computer Science, Pondicherry University, Puducherry, India 2Assistant Professor, Department of Computer Science, Pondicherry University, Puducherry, India Abstract This paper investigates a fusion strategy in the enhancement-based skin color segmentation approach that can improve the performance of face detection algorithm. The algorithm is invariant for the complex background, skin races, indoor and outdoor lighting conditions. The algorithm is split into three phases. The first phase adopts spatial transform techniques in parallel to improve the contrast of the image, transform the enhanced images into YCbCr images, apply skin segmentation technique and yield the binary segmented images. The second phase calculates the weight of accuracy (WoA) of each of the segmented image and fed it into the fusion strategy to get the final skin detected region. The last phase involves face localization. The approach is not limited to only frontal face detection but it is invariant with the different head poses, illumination condition, and size of faces. The experimental result demonstrates the improvement in the accuracy and precision but reduction in FPR as compared to other classifiers. Keywords: Image enhancement, Face detection, Fusion strategy, and Skin color detection.
--------------------------------------------------------------------***---------------------------------------------------------------------- 1. INTRODUCTION Computer vision is the artificial implementation of human vision. Human eyes are capable of visualizing wide range of frequencies of the visual spectrum. The objects in the images captured under unpredictable or unconstrained environments can be easily recognized by human eyes but it is one of the major challenging tasks in the computer vision. Face detection – the application of computer vision – plays a vital role in face recognition system, video surveillance, security systems, criminal identification, and human-computer interaction. The intent of any face detection approach is to spot the face regions within the image. The successfulness of real-time face detection techniques depends on the reliability of the facial feature selection under unconstrained environment. The facial feature comprises of the eyes, eye corners, mouth, nostrils, skin-color, texture and many more. The identification of these attributes under controlled environment is the easiest and simplest task, but it becomes complex and difficult under different lightings conditions, facial expressions, head poses, and occlusions.
Skin-color detection is one of the ways used to detect the human faces in color images. It limits the search area for the detection within the image. Instead of the benefits, skin detection has faced major challenges due to some sort of factors like complex background, skin races, indoor and outdoor lighting conditions. In order to improve the accuracy of skin detection, several image processing techniques have been developed. For enhancing the machine vision as like human eyes, the concept of spatial transformation technique has been taken into account. It has been a foremost step in applications like face detection, tracking and recognition. Its basic purpose is to improve the visual quality of digital images that exhibit bright lights and dark shadows. Thus, the improvement of face detection techniques can be based on accuracy of skin-color identification that is transitively based on the enhancement of an image. The spatial transformation can be categorized into intensity and spatial dependent routines like contrast stretching, gamma correction, histogram equalization, smoothing filter, and unsharp masking. In this paper, an efficient and robust face detection algorithm is presented through the skin-color detection using the fusion strategy of an enhancement-based approach and morphological processing to remove the noise. It is initiated with the enhancement of input image using five enhancement techniques taking all of them in parallel and getting the five enhanced images. The color space of these enhanced images is converted into YCbCr color space and then follows the classification of skin and non-skin pixel using piecewise linear decision boundary algorithm. All of the binary segmented images have been used as input in the fusion phase to yield final skin detected region. Morphological operator is applied to remove the noise. Finally, the segmented components are labeled, their area and centroid are calculated and the bounding box is drawn around the detected human faces. The rest of the paper is organized as follows: Section 2 discusses the related work. Section 3 explains all the phases of the proposed algorithm. Section 4 narrates the experimental results and conclusion is made in Section 5.
2. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Special Issue: 03 | May-2014 | NCRIET-2014, Available @ http://www.ijret.org 70
Fig -1:Flow diagram of the proposed system
2. RELATED WORK
In order to improve the performance of real-time detection and recognition systems, improvement in image enhancement and skin detection techniques should be addressed. Tao et al. [3] proposed an image enhancement algorithm by considering the dynamic range compression – neighborhood dependent intensity transformation – followed by local contrast enhancement to enhance the luminance in dark shadows. They compared their algorithm to histogram equalization and multi scale Retinex with color restoration to improve the face detection in complex lighting environment. They experimented on FRGC database containing up-right frontal human face captured under normal visual quality, dim brightness, dark face and bright background, and dark images of very low brightness. The same work has been done by Unaldi et al. [2] using different approach. They proposed wavelet-based image enhancement algorithm considering dynamic range compression and low contrast enhancement algorithm. Lim and Ibrahim [4] proposed two new enhancement techniques – CHEGIC and block based contrast enhancement method. They compared their result with the three conventional enhancement techniques namely, gamma intensity correction, histogram equalization, and homomorphicun sharp masking. Combination of color space with Gaussian model and piecewise linear decision boundary approach respectively proposed by Ravi et al. [10-11] for the segmentation of skin region. They had measured accuracy of their algorithm based on the count of number of images producing correct result – image-wise – instead of the number of pixels producing the correct result in an image – pixel-wise.
3. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Special Issue: 03 | May-2014 | NCRIET-2014, Available @ http://www.ijret.org 71
They had tested the normalized RGB color space with piecewise linear decision boundary in [12-13]. Lin [5] developed an effective and robust face detection scheme that can significantly decrease the execution time of the algorithm for those images with complex background. They used color and triangle-based approach for feature extraction. Their skin segmentation approach did not tolerate the skin-like objects. They didn’t consider the head pose and occlusions in their sample sets. Yun et al. [6] used the illumination-compensation and morphological processing for face detection. They proposed an empirical modified face ratio from golden ratio. They used centroid and area for evaluating the starting and ending points of the face. 3. PROPOSED WORK Figure 1 shows the flow diagram of the proposed approach. Face detection starts with the selection of attributes that it is going to be considered as features. The attributes that we have selected are skin-color, area of the facial region, and its centroid. The following subsections give the detailed description of the proposed approach. 3.1Skin Detection Technique Detection of skin region approach has been used in the paper for localizing human faces within the sample image. It starts with the selection of color spaces followed by the skin detector model that can label pixels either as skin or non-skin. Commonly, it is based on the theory that the color model can effectively help in modeling the skin-color that follows the segmentation of skin regions [7]. But the overlapping of skin and non-skin pixels limits its accuracy. It has been observed in the literature that the accuracy of the technique can be enhanced by adding additional features that helps in labeling the pixels more accurately. The additional feature that we have considered in the paper is image enhancement techniques as a preprocessing step that are discussed in the succeeding subsections. 3.1.1 Preprocessing Step This step involves the application of the spatial transformation techniques for improving the visibility of image to machine. It helps in contrast manipulation and sharpening of images. There are five techniques that we have considered for improvising the details of the images namely, contrast stretching (CS), gamma correction (GC), histogram equalization (HE), smoothing filter (SF) and unsharp masking (UM). The input image, I(x,y), is fed to each of the techniques simultaneously and converted into different enhanced images, generated by applying the transformation function of the techniques to each channels of the color space. The mathematical representation for preprocessing the image pixels are given in equation (1). E x,y =T[I(x,y)] (1)
Here, E(x,y) represents the enhanced image, T represents the transformation function, applied on the input image, I(x,y) to produce the enhanced image. The above equation represents the transformation function applied on the grayscale image. In this paper, color images are considered. Thus, we have modified the equation as shown in the equation (2).
ER x,y EG x,y EB x,y =T[IR x,y IG x,y IB x,y ] (2) Eki x,y =Ti Ik x,y (3) Here, k = {R, G, B} channels and i = 1 to 5. The purpose of using the above mentioned techniques is due to their benefits in different situations. Contrast stretching attempts to increase the appearance of large-scale light-dark transitions. Power law transformation (Gamma correction) is used when expansion of dynamic range of image requires. Unsharp mask increases the appearance of small-scale edges. Figure 2 shows the effect on original image after applying the five different transformation functions independently and individually. 3.1.2 Color Space The rationale behind the detection of human faces in color images is to get more information than a gray level image [1]. This implies that color images are capable of improving the accuracy of detection.
Fig -2: Enhanced images of the sample images
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It has been observed in the literature that YCbCr color space always yields better result as compared to other color space in the discrimination of skin-colors as well as human faces. That’s why,YCbCr is used in the paper to convert the color space of enhanced images to YCbCr color space. Equation (4) represents its transformation formula. Figure 3 shows the color converted image of original image after applying gamma corrected enhancement technique. Fig 3(a) shows the original image. Fig 3(b) shows the enhanced image after applying gamma correction. Fig 3(c) shows the change in color space of the enhanced image from RGB to YCbCr. Y=0.2989∗R+0.5866∗G+0.1145∗B Cb=0.1688∗R− 0.3312∗G +(0.5∗B) (4) Cr= 0.5∗R − 0.4184∗G −(0.0816∗B)
Fig -3: Color converted image of gamma enhanced image 3.1.3 Skin Segmentation After the completion of color transformation, skin segmentation approach is performed. Piecewise linear decision boundary approach has used for labeling the pixels either as skin or non-skin. The approach takes transformed images one at a time and converts it into binary skin segmented image using multiple thresholds. This intimates that five binary segmented images will be yielded, one for each transformed image and is shown in figure 5. 3.1.4 Fusion Strategy
Fusion strategy implies the fusion of multiple results obtained from different algorithms so that more information can be obtained as compared to single algorithm. It performs either at score level or decision level. Score level makes the final decision on the basis of combination of match scores generated by each classifier to generate a new match score. It involves sum rule, product rule, exponential sum rule, and tan hyperbolic sum rule. Decision level makes the decision either yes or no or in other words, either classifiers output match or no match. Majority voting, weighted voting and “AND” and “OR” rules are the decision level fusion strategies [8]. In biometric recognitions, the sum rule has produced the best performance overall as compared to other methods. The parameter weight is associated with the score level fusion that represents the performance of different detectors. It requires FPR (false positive rate) and FNR (false negative rate) of each classifier to compute their respective weights. Larger the weight, smaller will be the error rate. Thus, we have referred this parameter as weight of accuracy (WoA). Xiao [8] used the sum rule with the fuzzy approach to detect human faces using skin detector, eye detector, and face shape detector. The weight for each classifier is computed using equation (5)
wi= 1−(FPRi+FNRi) N− (FPRk+FNRk)Nk =1 (5) FPRi= FPiFPi+TNi (6) FNRi= FNiFNi+TPi (7) where, k = 1 to 5, FPRi and FNRi represents the false positive rate and false negative rate of ith classifier, respectively. The manually labeled ground truth of the image has been used for estimating the FPR and FNR of each classifier. After computing the weights, Sf is calculated for each pixel using equation (8). Sf= wisiNi =1 (8) where, si represents the ith pixel of binary skin segmented image of each classifier, and N = m x n represents total number of pixels in the input image. This implies that the Sf value is calculated for each and every pixel of the image. If the computed value is greater than some predefined threshold θ, then the pixel is labeled as skin (1) else non-skin (0). y= 1, Sf>θ0, otherwise (9) 3.1.5 Morphological Operator Morphological operator is used to remove the noise that was added during the segmentation process. Removing the noise from the binary image by deleting all the connected components that have fewer than predefined pixels, results in another binary skin segmented image. After that, erosion operation is applied followed by dilation morphological operator to get the final skin segmented image. 3.2 Face Localization This step involves the localization of face candidate from the skin segmented regions as shown in figure 4. As we have stated, increasing TPR by reducing FPR for improving the localization of human faces is the main objective of our paper. The task is split into two steps: computing the facial area and identifying the face region. First, the regions are labeled using 8-connected components shown in figure 4.
(a) (b) (c)
5. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Fig. 4: Face localization in sample image The area of all the connected components is calculated and compared with the predefined threshold to test whether it is face or non-face. If it is a face, the centroid of the facial area is computed and the coordinates for making the bounding box around is extracted. 4. EXPERIMENTAL RESULTS AND DISCUSSION The Caltech face dataset [9] is used to compare the performance of the proposed approaches with the other state- of-art methods. Caltech dataset is designed to study face detection results under complex background, indoor and outdoor lighting conditions. It contains 452 images of size 896 x 592. The performance of proposed approach (PA) have been compared with five conventional enhancement techniques (CS, GC, HE, SF and UM). The performance metrics considered for estimating the performance are TPR, FPR, precision, and accuracy. The metrics are obtained by using the following equations: TPR= TPTP+FN (10) Precision= TPTP+FP (11) Accuracy= TP+TNTP+TN+FP+FN (12)
Chart -1: Performance chart of all the techniques
Table -1:Performance evaluation of the proposed approach of the skin segmentation
Performance Metrics (%)
Image Enhancement Techniques
Proposed approach
CS
GC
HE
SF
UM
TPR
90.1
79.4
95.5
86.2
83.1
94.1
FPR
15.9
8.1
82.5
79.7
12.3
7.9
Precision
56.1
68.7
19.5
18.6
59.5
74.3
Accuracy
85.2
89.8
31.0
31.8
86.9
90.9
Here, TP (True Positive) represents the number of pixels correctly detected as skin. FP (False Positive) represents the number of non-skin pixels detected as skin. TN (True Negative) represents the number of pixels correctly detected as non-skin. FN (False Negative) represents the number of skin pixels detected as non-skin. The effect of the unconstrained environment that results in incorrect labeling of pixels that transitively results in the incorrect face detection are shown in figure 5.
Fig. 5:Face detection examples
0
20
40
60
80
100
CS
GC
HE
SF
UM
PM
TPR
FPR
Precision
Accuracy
Original Image
Final Segmented Image
Labeled Image
Connected Image
Face Detected Image
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The aim of any skin classifier is to maintain a tradeoff between TPR and FPR. Larger the TPR, smaller should be the FPR. Contrast enhanced segmented image yielded 62.73% TPR with 24.26% FPR for the input image containing human face facing shadow light as compared to its background. It labeled some portion of skin region as non-skin mistakenly as compared to histogram equalized segmented image where FPR is 3.95%. The HE and SF segmented image have higher FPR as compared to other techniques. The qualitative performance of the PA compared with the other techniques is shown in chart 1. It is clearly observed from the chart that the relation between TPR and FPR is quiet proportional to each other in each classifier except for the proposed approach. From this point of view, we can conclude that the proposed approach is more efficient than the other techniques in the literature. The accuracy and precision of all the classifiers is shown in table 1 along with the TPR and FPR of the average. The proposed approach produces 90.9% accuracy which is better than the other methods used in skin detection. The performance of the newer approach in face detection is also calculated in terms of precision ratio. The proposed approach is tested on 50 images and got the precision ratio of 90.9% on the average. 5. CONCLUSIONS Face detection based on geometrical features is proposed in this paper. We have used the enhancement approach along with the fusion strategy to locate the human faces robustly in images. The affected skin segmented region results after enhancement techniques due to the complex background and indoor and outdoor conditions. To resolve the problem, the fusion strategy is considered to reduce the FPR and increase the TPR. Since, the accuracy of face detection results depends on the accuracy of skin region extraction from an image. Therefore, our algorithm fixes the delocalization problem of bounding box by correctly identifying skin-color, and face area to locate the human face. The benefit of our approach is its simplicity and low complexity. Multiple face detection in various situations will be our future investigation. ACKNOWLEDGMENTS This work is supported and funded by the University Grant Commission (UGC) of India under major research project (F.No. 41-648-2012 (SR)) to the Department of Computer Science, Pondicherry University, Puducherry, India.
REFERENCES
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[9]. Computational Vision at Caltech, http://www.vision.caltech.edu/html-files/archive.html, March 17, 2005. [10]. Ravi Subban and Richa Mishra, “Skin segmentation based on Gaussian model by combining color spaces”, International Journal of Emerging Technologies in Computational and Applied Sciences (IJETCAS), 2013, 189- 197. [11]. Ravi Subban and Richa Mishra, “Human skin detection using combination of color spaces in color images”, International Journal of Software and Web Sciences (IJSWS), 2013, 13-21. [12]. RaviSubban and Richa Mishra, “Rule-based face detection in color images using normalized RGB color space – a comparative study”, Proceedings of the 2012 IEEE International Conference on Computational Intelligence and Computing Research, 2012, 1-5. [13]. Ravi Subban and Richa Mishra. "Face detection in color images based on explicitly-defined skin color model." In Advances in Computing, Communication, and Control Springer Berlin Heidelberg, 2013 570-582