Two-stage sparse representation-based face recognition with reconstructed images.
Guangtao ChengZhanjie SongYang LeiXiuning HanPublished in: J. Electronic Imaging (2014)
Keyphrases
- reconstructed image
- face recognition
- sparse representation
- image reconstruction
- test images
- subspace learning
- image quality
- image compression
- post processing
- visual quality
- bit rate
- face images
- spatial resolution
- compression ratio
- compressed images
- reconstruction quality
- blocking artifacts
- sparse coding
- face detection
- peak signal to noise ratio
- principal component analysis
- preprocessing
- reconstructed image quality
- super resolution
- feature extraction
- facial images
- facial expressions
- low bit rate
- transform coefficients
- high frequency
- image classification
- image data
- low level
- computer vision
- higher compression ratio
- ground truth
- video sequences
- decision trees