Image Compressive Sensing Reconstruction Based on z-Score Standardized Group Sparse Representation.
Zhirong GaoLixin DingQiming XiongZhongyi GongChengyi XiongPublished in: IEEE Access (2019)
Keyphrases
- compressive sensing
- sparse representation
- compressive sampling
- image representation
- learned dictionary
- image classification
- sparse reconstruction
- reconstruction error
- signal reconstruction
- test images
- random projections
- dictionary learning
- sparse coding
- compressed sensing
- multiscale
- signal processing
- image features
- single image super resolution
- sparse coefficients
- input image
- orthogonal matching pursuit
- image data
- face recognition
- image patches
- high dimensional data
- high resolution
- structured sparsity
- group sparsity
- joint optimization
- natural images
- bag of words
- machine learning