Fingerprint image super resolution using sparse representation with ridge pattern prior by classification coupled dictionaries.
Weixin BianShifei DingYu XuePublished in: IET Biom. (2017)
Keyphrases
- sparse representation
- dictionary learning
- super resolution
- single image super resolution
- image super resolution
- image patches
- sparse coding
- image classification
- low resolution
- high resolution
- singular points
- low resolution images
- image representation
- image reconstruction
- face recognition
- compressive sensing
- fingerprint images
- random projections
- high dimensional data
- fingerprint matching
- signal processing
- depth map
- motion estimation
- feature extraction
- test images
- natural images
- pattern recognition
- high quality
- feature vectors
- low quality
- unsupervised learning
- bag of words
- feature space