Low-resolution face recognition in uses of multiple-size discrete cosine transforms and selective Gaussian mixture models.
Shih-Ming HuangYang-Ting ChouJar-Ferr YangPublished in: IET Comput. Vis. (2014)
Keyphrases
- low resolution
- gaussian mixture model
- face images
- high resolution
- face recognition
- super resolution
- mixture model
- low resolution face images
- feature vectors
- em algorithm
- low resolution images
- image super resolution
- maximum likelihood
- high quality
- probability density function
- expectation maximization
- multiscale
- feature extraction
- computer vision
- principal component analysis
- probabilistic model
- sparse representation
- covariance matrices