Very low bit rate face video compression using linear combination of 2D face views and principal components analysis.
Ioannis KoufakisBernard F. BuxtonPublished in: Image Vis. Comput. (1999)
Keyphrases
- video compression
- linear combination
- principal components analysis
- human faces
- face images
- video coding
- facial expressions
- motion estimation
- motion compensation
- facial features
- recognition algorithm
- low bit rate
- video conferencing
- video data
- covariance matrix
- face recognition
- basis functions
- motion compensated
- frontal view
- feature extraction
- dimensionality reduction
- block matching
- compression ratio
- small number
- principal components
- support vector machine
- linear discriminant analysis
- bit allocation
- video sequences
- motion vectors
- principal component analysis
- discrete cosine transforms
- sparse coding
- three dimensional
- motion field
- stereo vision
- feature points
- image quality
- multiscale
- computer vision
- data sets