Fingerprint image super-resolution via ridge orientation-based clustered coupled sparse dictionaries.
Kuldeep SinghAnubhav GuptaRajiv KapoorPublished in: J. Electronic Imaging (2015)
Keyphrases
- super resolution
- orientation field
- fingerprint images
- singular points
- single image super resolution
- sparse representation
- low resolution
- fingerprint recognition
- high resolution
- sparse coding
- orientation estimation
- fingerprint matching
- image reconstruction
- dictionary learning
- high quality
- gabor filters
- dense motion estimation
- image patches
- palmprint
- motion estimation
- low quality
- low resolution images
- super resolution reconstruction
- compressive sensing
- minutiae extraction
- face recognition
- structure tensor
- image enhancement
- high resolution images
- natural images
- depth map
- scale space
- input image
- feature space
- hough transform
- image classification
- facial images
- object recognition
- image representation
- texture analysis