Illumination Estimation Based on Bilayer Sparse Coding.
Bing LiWeihua XiongWeiming HuHouwen PengPublished in: CVPR (2013)
Keyphrases
- sparse coding
- robust face recognition
- dictionary learning
- sparse representation
- natural images
- image classification
- linear combination
- generative model
- unsupervised learning
- discriminative power
- sparse codes
- person re identification
- image patches
- image representation
- single image super resolution
- object category recognition
- group sparsity
- feature space
- bag of words
- data sets
- visual words
- ground truth
- active learning
- image retrieval
- feature extraction