Construction of Unit-Norm Tight Frame Based Preconditioner for Sparse Coding.
Huang BaiChuanrong HongXiumei LiPublished in: ICASSP (2021)
Keyphrases
- sparse coding
- natural images
- sparse representation
- dictionary learning
- norm minimization
- image classification
- discriminative power
- linear combination
- unsupervised learning
- image representation
- generative model
- single image super resolution
- sparse codes
- image patches
- object category recognition
- object recognition
- visual words
- edge preserving
- bag of words
- high dimensional
- multiscale
- prior knowledge
- image processing