An analysis of facial expression recognition under partial facial image occlusion
Image and Vision Computing
Robust watermarking based on DWT and nonnegative matrix factorization
Computers and Electrical Engineering
Discriminant Non-negative Matrix Factorization and Projected Gradients for Frontal Face Verification
Biometrics and Identity Management
Qualitative fusion of normalised scores in multimodal biometrics
Pattern Recognition Letters
Discriminant nonnegative tensor factorization algorithms
IEEE Transactions on Neural Networks
Local learning regularized nonnegative matrix factorization
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
An efficient nonnegative matrix factorization approach in flexible kernel space
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
Discriminant sparse nonnegative matrix factorization
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Frontal view recognition in multiview video sequences
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
A doubly weighted approach for appearance-based subspace learning methods
IEEE Transactions on Information Forensics and Security
Facial expression recognition based on graph-preserving sparse non-negative matrix factorization
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Nonlinear non-negative component analysis algorithms
IEEE Transactions on Image Processing
Anthropocentric video analysis for film and games postproduction
Proceedings of the 11th International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing on International Conference on Computer Systems and Technologies
Sequential coordinate-wise DNMF for face recognition
ICAISC'10 Proceedings of the 10th international conference on Artificial intelligence and soft computing: Part I
Manifold-respecting discriminant nonnegative matrix factorization
Pattern Recognition Letters
Computer Vision and Image Understanding
Pattern Recognition Letters
Extracting non-negative basis images using pixel dispersion penalty
Pattern Recognition
Review article: Max-margin Non-negative Matrix Factorization
Image and Vision Computing
Subclass discriminant Nonnegative Matrix Factorization for facial image analysis
Pattern Recognition
ICONIP'12 Proceedings of the 19th international conference on Neural Information Processing - Volume Part I
Multiple kernel local Fisher discriminant analysis for face recognition
Signal Processing
Measuring the degree of face familiarity based on extended NMF
ACM Transactions on Applied Perception (TAP)
Multiple graph regularized nonnegative matrix factorization
Pattern Recognition
Discriminant Convex Non-negative Matrix Factorization for the classification of human brain tumours
Pattern Recognition Letters
Discriminative Orthogonal Nonnegative matrix factorization with flexibility for data representation
Expert Systems with Applications: An International Journal
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In this paper, two supervised methods for enhancing the classification accuracy of the Nonnegative Matrix Factorization (NMF) algorithm are presented. The idea is to extend the NMF algorithm in order to extract features that enforce not only the spatial locality, but also the separability between classes in a discriminant manner. The first method employs discriminant analysis in the features derived from NMF. In this way, a two-phase discriminant feature extraction procedure is implemented, namely NMF plus Linear Discriminant Analysis (LDA). The second method incorporates the discriminant constraints inside the NMF decomposition. Thus, a decomposition of a face to its discriminant parts is obtained and new update rules for both the weights and the basis images are derived. The introduced methods have been applied to the problem of frontal face verification using the well-known XM2VTS database. Both methods greatly enhance the performance of NMF for frontal face verification