Keyphrases
- lighting conditions
- viewpoint
- human faces
- light source
- illumination conditions
- lighting variations
- imaging conditions
- photometric stereo
- partial occlusion
- eye detection and tracking
- complex background
- cluttered background
- varying illumination
- controlled environments
- visual information
- single image
- visual features
- specular reflection
- image analysis
- human vision
- moving objects
- training data
- face recognition