Block LDA and Gradient Image for Face Recognition.
Chuan-Yu ChangChing-Yu HsiehPublished in: IEA/AIE (2009)
Keyphrases
- face recognition
- image data
- linear discriminant analysis
- multiscale
- discriminant analysis
- image features
- edge detection
- image blocks
- image representation
- single image
- image retrieval
- input image
- image classification
- principal component analysis
- feature extraction
- face images
- gradient direction
- gradient information
- segmentation method
- gradient field
- keypoints
- gabor features
- fractal image coding
- sparse representation
- human faces
- image segmentation
- face detection
- latent dirichlet allocation
- pixel values
- image structure
- image gradient
- gradient magnitude
- generative model
- high resolution
- quadtree decomposition