Block LDA and Gradient Image for Face Recognition.

Chuan-Yu Chang Ching-Yu Hsieh

Published 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