Multi-Scale Dictionary Learning Using Wavelets.
Boaz OphirMichael LustigMichael EladPublished in: IEEE J. Sel. Top. Signal Process. (2011)
Keyphrases
- dictionary learning
- multiscale
- sparse coding
- image representation
- sparse representation
- wavelet transform
- natural images
- wavelet decomposition
- image super resolution
- scale space
- group sparsity
- signal processing
- image segmentation
- edge detection
- multiresolution
- image compression
- object category recognition
- keypoints
- filter bank
- image processing
- image classification
- bag of words
- sparse codes
- text classification
- dictionary learning for sparse
- prior knowledge
- image patches
- subband
- semi supervised
- face recognition
- visual words
- nearest neighbor