Investigating the Upper-Bound Performance of Sparse-Coding-Based Spectral Reconstruction from RGB Images.
Yi-Tun LinGraham D. FinlaysonPublished in: CIC (2021)
Keyphrases
- sparse coding
- image classification
- upper bound
- object category recognition
- reconstruction error
- natural images
- dictionary learning
- input image
- image data
- single image super resolution
- sparse representation
- lower bound
- image features
- spatial pyramid matching
- high resolution images
- discriminative power
- image retrieval
- image representation
- linear combination
- small number
- test images
- image patches
- object recognition
- unsupervised learning
- sparse codes
- image annotation
- ground truth
- high resolution
- visual words
- computer vision
- higher order
- object detection
- feature extraction