Adaptive histogram equalization and its variations
Computer Vision, Graphics, and Image Processing
Contrast limited adaptive histogram equalization
Graphics gems IV
An efficient algorithm for the 2-D discrete cosine transform
Signal Processing
Face Recognition Using Line Edge Map
IEEE Transactions on Pattern Analysis and Machine Intelligence
An improved face recognition technique based on modular PCA approach
Pattern Recognition Letters
Journal of VLSI Signal Processing Systems
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 3 - Volume 03
Handbook of Face Recognition
Digital Image Processing (3rd Edition)
Digital Image Processing (3rd Edition)
Journal of Cognitive Neuroscience
Face Recognition Based on the Phase Spectrum of Local Normalized Image
MICAI '08 Proceedings of the 2008 Seventh Mexican International Conference on Artificial Intelligence
A methodology for rapid illumination-invariant face recognition using image processing filters
Computer Vision and Image Understanding
Complex wavelet transform-based face recognition
EURASIP Journal on Advances in Signal Processing
Face recognition in JPEG and JPEG2000 compressed domain
Image and Vision Computing
Personal identification through biometric technology
AIC'09 Proceedings of the 9th WSEAS international conference on Applied informatics and communications
A complete fuzzy discriminant analysis approach for face recognition
Applied Soft Computing
Support vector machines of interval-based features for time series classification
Knowledge-Based Systems
Robust face detection using Gabor filter features
Pattern Recognition Letters
Feature extraction and face verification using Gabor and Gaussian mixture models
MICAI'07 Proceedings of the artificial intelligence 6th Mexican international conference on Advances in artificial intelligence
An SVM based classification method for EEG signals
ICC'10 Proceedings of the 14th WSEAS international conference on Circuits
PCA based immune networks for human face recognition
Applied Soft Computing
Multi-objective uniform design as a SVM model selection tool for face recognition
Expert Systems with Applications: An International Journal
LIBSVM: A library for support vector machines
ACM Transactions on Intelligent Systems and Technology (TIST)
Application of DCT blocks with principal component analysis for face recognition
SSIP'05 Proceedings of the 5th WSEAS international conference on Signal, speech and image processing
Variable lighting face recognition using discrete wavelet transform
Pattern Recognition Letters
ANN vs. SVM: Which one performs better in classification of MCCs in mammogram imaging
Knowledge-Based Systems
Pattern Recognition Letters
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Several algorithms have been proposed for constrained face recognition applications. Among them the eigenphases algorithm and some variations of it using sub-block processing, appears to be desirable alternatives because they achieves high face recognition rate, under controlled conditions. However, their performance degrades when the face images under analysis present variations in the illumination conditions as well as partial occlusions. To overcome these problems, this paper derives the optimal sub-block size that allows improving the performance of previously proposed eigenphases algorithms. Theoretical and computer evaluation results show that, using the optimal block size, the identification performance of the eigenphases algorithm significantly improves, in comparison with the conventional one, when the face image presents different illumination conditions and partial occlusions respectively. The optimal sub-block size also allows achieving a very low false acceptance and false rejection rates, simultaneously, when performing identity verification tasks, which is not possible to obtain using the conventional approach; as well as to improve the performance of other sub-block-based eigenphases methods when rank tests are performed.