Regularized single-image super-resolution based on progressive gradient estimation.
Lejun YuXiaoyu WuFeng-Xiang GeBo SunJun HeRobert SablatnigPublished in: ICIP (2015)
Keyphrases
- gradient estimation
- single image super resolution
- sparse coding
- super resolution
- low resolution
- dictionary learning
- image patches
- variance reduction
- compressive sensing
- least squares
- sparse representation
- high resolution
- natural images
- linear combination
- unsupervised learning
- high resolution images
- super resolution algorithm
- image segmentation
- signal processing
- feature vectors
- high quality