Super-Resolution of Face Images Using Kernel PCA-Based Prior.
Ayan ChakrabartiA. N. RajagopalanRama ChellappaPublished in: IEEE Trans. Multim. (2007)
Keyphrases
- face images
- super resolution
- low resolution
- high resolution
- principal component analysis
- face recognition
- face hallucination
- principle component analysis
- low resolution face images
- low resolution images
- image reconstruction
- human faces
- face databases
- image restoration
- high resolution face images
- high resolution images
- single image
- motion estimation
- test images
- image super resolution
- multi frame
- facial features
- facial expressions
- feature space
- high quality
- dimensionality reduction
- feature vectors
- training set
- feature extraction
- depth map
- spatial resolution
- maximum a posteriori
- face verification
- input image
- image patches
- image processing
- feature points
- low dimensional
- multiscale
- computational complexity
- high dimensional