Block compressive sensing of image and video with nonlocal Lagrangian multiplier and patch-based sparse representation.
Chien Van TrinhKhanh Quoc DinhByeungwoo JeonMartin BurgerPublished in: Signal Process. Image Commun. (2017)
Keyphrases
- compressive sensing
- sparse representation
- compressive sampling
- image representation
- image classification
- image super resolution
- learned dictionary
- test images
- dictionary learning
- image patches
- sparse reconstruction
- random projections
- sparse coding
- image data
- multiscale
- sparse coefficients
- image features
- input image
- single image super resolution
- face recognition
- video sequences
- image segmentation
- orthogonal matching pursuit
- group sparsity
- natural images
- signal processing
- image retrieval
- compressed sensing
- data mining
- high dimensional data
- image denoising
- bag of words
- feature extraction
- similarity measure
- input data
- dimensionality reduction
- higher order
- machine learning
- denoising
- high resolution