Single-image super-resolution based on Markov random field and contourlet transform.
Wei WuZheng LiuWail GueaiebXiaohai HePublished in: J. Electronic Imaging (2011)
Keyphrases
- markov random field
- image prior
- maximum a posteriori
- graph cuts
- image denoising
- image segmentation
- image restoration
- subband
- higher order
- multiscale
- sparse coding
- multiresolution
- potential functions
- energy function
- wavelet transform
- pairwise
- texture images
- super resolution
- prior model
- map estimation
- dictionary learning
- low resolution
- image patches
- high frequency
- natural images
- image representation
- face recognition
- image classification