Optimally Sparse Image Representation by the Easy Path Wavelet Transform.
Gerlind PlonkaStefanie TenorthArmin IskePublished in: Int. J. Wavelets Multiresolution Inf. Process. (2012)
Keyphrases
- image representation
- wavelet transform
- multiscale
- sparse coding
- compressive sensing
- sparse representation
- image content
- image classification
- bag of words
- high frequency
- image compression
- object recognition
- multiresolution
- subband
- image features
- wavelet domain
- wavelet coefficients
- quadtree
- visual words
- low frequency
- feature representations
- high dimensional
- feature space
- receptive fields
- natural images
- contourlet transform
- image retrieval
- translation invariant
- edge detection
- feature extraction
- representation scheme
- scene classification
- pattern representation
- scene categorization
- keypoints
- bag of visual words
- bag of features
- image processing
- image segmentation