Image Sharpness Assessment by Sparse Representation.
Leida LiDong WuJinjian WuHaoliang LiWeisi LinAlex C. KotPublished in: IEEE Trans. Multim. (2016)
Keyphrases
- sparse representation
- image classification
- test images
- image representation
- reconstruction error
- input image
- sparse coding
- dictionary learning
- image data
- image retrieval
- piecewise smooth
- image features
- joint optimization
- object tracking
- sparse reconstruction
- multiscale
- sparse coefficients
- face recognition
- single image
- random projections
- data sets
- basis vectors
- image patches
- image matching
- bag of words
- image regions
- spatial information
- compressive sensing
- compressed sensing
- feature space
- signal processing
- face images
- higher order
- semi supervised
- high resolution
- regularized least squares