Single image super resolution using dictionary learning and sparse coding with multi-scale and multi-directional Gabor feature representation.
Selen AyasMurat EkinciPublished in: Inf. Sci. (2020)
Keyphrases
- feature representation
- single image super resolution
- sparse coding
- dictionary learning
- image representation
- multiscale
- sparse representation
- natural images
- face recognition
- feature extraction
- image classification
- image patches
- bag of words
- scale space
- feature space
- low dimensional
- image processing
- visual words
- compressive sensing
- wavelet transform
- sparse codes
- image segmentation
- local binary pattern
- linear combination
- dimensionality reduction
- test images
- action recognition
- unsupervised learning
- generative model
- signal processing
- learning algorithm