Quantized dictionary for sparse representation.
Lei LiuJie LiangYao ZhaoChunyu LinHuihui BaiPublished in: MMSP (2015)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- image classification
- face recognition
- compressive sensing
- reconstruction error
- learned dictionary
- image patches
- dimensionality reduction
- compressed sensing
- joint optimization
- image representation
- negative matrix factorization
- high dimensional data
- sparse approximations
- random projections
- piecewise smooth
- test images
- data mining
- sparse reconstruction
- norm minimization
- regularized least squares
- image super resolution
- computer vision
- image processing
- signal processing