Group-based sparse representation for image compressive sensing reconstruction with non-convex regularization.
Zhiyuan ZhaXinggan ZhangQiong WangLan TangXin LiuPublished in: Neurocomputing (2018)
Keyphrases
- compressive sensing
- sparse representation
- compressive sampling
- image representation
- learned dictionary
- reconstruction error
- image classification
- sparse reconstruction
- test images
- random projections
- structured sparsity
- orthogonal matching pursuit
- compressed sensing
- input image
- dictionary learning
- single image super resolution
- group sparsity
- sparse coding
- signal processing
- face recognition
- image data
- high resolution
- image patches
- image features
- multiscale
- sparse coefficients
- image retrieval
- image segmentation
- object recognition
- sparse signal representation
- norm minimization
- bag of words
- high dimensional data
- super resolution
- dimensionality reduction
- feature space
- similarity measure
- data mining
- sparse approximation
- data analysis
- neural network