Divisively Normalized Sparse Coding: Toward Perceptual Visual Signal Representation.
Xiang ZhangSiwei MaShiqi WangJian ZhangHuifang SunWen GaoPublished in: IEEE Trans. Cybern. (2021)
Keyphrases
- sparse coding
- image representation
- dictionary learning
- sparse representation
- natural images
- image classification
- sparsity constraints
- unsupervised learning
- low level
- discriminative power
- generative model
- spatial pyramid matching
- compressive sensing
- linear combination
- feature space
- sparse codes
- visual features
- high dimensional
- image patches
- single image super resolution
- object category recognition
- visual words
- signal processing
- pairwise
- multiscale
- spatial relations
- bag of words
- human vision
- object recognition
- similarity measure
- feature extraction
- face recognition