Facial Image Compression Based on Structured Codebooks in Overcomplete Domain.
José-Emilio Vila-ForcénSviatoslav VoloshynovskiyOleksiy J. KovalThierry PunPublished in: EURASIP J. Adv. Signal Process. (2006)
Keyphrases
- image compression
- vector quantization
- domain specific
- facial expressions
- vector quantizer
- compression scheme
- face recognition
- natural images
- facial images
- subband
- sparse representation
- real world
- low bit rate
- facial expression recognition
- image patches
- domain independent
- linear combination
- wavelet transform
- image sequences
- landmark detection
- codebook design
- compressed images
- structured data
- discriminative power
- sparse coding
- image processing