Convolutional Dictionary Learning With Grid Refinement.
Andrew H. SongFrancisco J. FloresDemba E. BaPublished in: IEEE Trans. Signal Process. (2020)
Keyphrases
- dictionary learning
- sparse coding
- sparse representation
- linear combination
- natural images
- image classification
- unsupervised learning
- group sparsity
- image representation
- image super resolution
- image patches
- generative model
- object category recognition
- sparse codes
- high dimensional
- feature space
- sparsity constraints
- training data
- input data
- visual words
- multiscale
- high quality
- neural network