Parameter estimation in sparse representation based face hallucination.
Zhongyuan WangRuimin HuZhenfeng ShaoZhiqiang HouPublished in: Digit. Signal Process. (2014)
Keyphrases
- parameter estimation
- face hallucination
- image super resolution
- dictionary learning
- low resolution
- sparse representation
- high resolution
- super resolution
- high resolution images
- maximum likelihood
- markov random field
- model selection
- least squares
- facial images
- sparse coding
- em algorithm
- random fields
- face images
- subspace learning
- parameter estimation algorithm
- expectation maximization
- image reconstruction
- image classification
- parameter estimates
- image processing
- image restoration
- estimation problems
- parameter optimization
- map estimation
- image patches
- data mining
- semi supervised
- face recognition
- computer vision