Low-Quality Character Recognition Based on Dictionary Learning and Sparse Representation.
Haibin LiaoLi LiYoubin ChenRuolin RuanPublished in: CCPR (2) (2016)
Keyphrases
- low quality
- character recognition
- dictionary learning
- sparse representation
- sparse coding
- high quality
- machine vision
- image super resolution
- face recognition
- image patches
- image classification
- signal processing
- high dimensional data
- single image super resolution
- negative matrix factorization
- compressive sensing
- image representation
- dimensionality reduction
- group sparsity
- test images
- sparsity constraints
- sparse codes
- data analysis
- data sets
- supervised learning
- ground truth