Sparse representation and position prior based face hallucination upon classified over-complete dictionaries.
Xiang MaHiêp Quang LuongWilfried PhilipsHuansheng SongHua CuiPublished in: Signal Process. (2012)
Keyphrases
- sparse representation
- image super resolution
- dictionary learning
- face hallucination
- sparse coding
- image classification
- compressive sensing
- random projections
- low resolution
- face recognition
- image patches
- dimensionality reduction
- high dimensional data
- sparse approximations
- subspace learning
- image representation
- super resolution
- signal processing
- manifold learning
- computer vision
- data sets
- test images
- input data
- anisotropic diffusion
- high resolution
- feature vectors
- high quality
- high resolution images
- image segmentation
- sparse codes