Single image super resolution using local smoothness and nonlocal self-similarity priors.
Hong-Guang ChenXiaohai HeQizhi TengChao RenPublished in: Signal Process. Image Commun. (2016)
Keyphrases
- single image super resolution
- image prior
- prior model
- image denoising
- image restoration
- prior information
- natural images
- super resolution
- sparse coding
- low resolution
- denoising
- edge preserving
- dictionary learning
- image patches
- noisy images
- markov random field
- total variation
- denoising algorithm
- maximum a posteriori
- high resolution
- prior knowledge
- high resolution images
- edge information
- image deblurring
- sparse representation
- natural scenes
- higher order
- image processing
- image segmentation
- reconstructed image
- linear combination
- unsupervised learning
- noise reduction
- test images
- wavelet coefficients
- input image
- motion estimation
- blind deconvolution
- high quality
- super resolution algorithm
- feature extraction