Two-step superresolution approach for surveillance face image through radial basis function-partial least squares regression and locality-induced sparse representation.
Junjun JiangRuimin HuZhen HanZhongyuan WangJun ChenPublished in: J. Electronic Imaging (2013)
Keyphrases
- radial basis function
- sparse representation
- face hallucination
- image super resolution
- face recognition
- face images
- dictionary learning
- low resolution
- super resolution
- high resolution
- image patches
- neural network
- sparse coding
- low resolution face images
- basis functions
- test images
- low resolution images
- image reconstruction
- high resolution images
- human faces
- support vector
- support vector machine svm
- support vector machine
- image classification
- object tracking
- image representation
- post processing
- facial features
- principal component analysis
- computer vision
- random projections
- facial expressions
- dimensionality reduction
- signal processing
- markov random field
- input image
- face detection
- high dimensional data
- high quality
- feature extraction
- image restoration
- facial images
- motion estimation
- feature vectors