Robust Coarse-to-Fine Sparse Representation for Face Recognition.
Yunlian SunMassimo TistarelliPublished in: ICIAP (2) (2013)
Keyphrases
- sparse representation
- coarse to fine
- face recognition
- illumination variations
- multiscale
- dictionary learning
- multiresolution
- norm minimization
- sparse coding
- hierarchical segmentation
- image registration
- image classification
- robust face recognition
- sparse representation based classification
- object detection
- image patches
- face images
- compressive sensing
- high dimensional data
- object tracking
- image representation
- joint optimization
- dynamic programming
- computer vision
- reconstruction error
- learning algorithm
- principal component analysis
- dimensionality reduction
- signal processing
- test images
- human faces
- data sets
- high dimensional
- face detection
- piecewise smooth
- partial occlusion
- image processing
- data mining
- feature extraction
- pattern recognition
- facial expressions
- natural images