Face Image Superresolution via Locality Preserving Projection and Sparse Coding.
Kebin HuangRuimin HuZhen HanTao LuJunjun JiangFeng WangPublished in: J. Softw. (2013)
Keyphrases
- sparse coding
- face images
- super resolution
- low resolution
- high resolution
- image patches
- face recognition
- sparse representation
- natural images
- low resolution images
- dictionary learning
- human faces
- subspace learning
- image classification
- linear combination
- image reconstruction
- manifold structure
- input image
- unsupervised learning
- facial expressions
- principal component analysis
- feature space
- high resolution images
- generative model
- image representation
- facial features
- image super resolution
- test images
- feature vectors
- feature extraction
- high quality
- training samples
- high dimensional
- multi frame
- dimensionality reduction
- face databases
- data sets
- motion estimation
- higher order
- training set
- supervised learning
- multiscale
- object recognition
- image sequences
- image processing
- machine learning