Some Properties of the E Matrix in Two-View Motion Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Recovery of Nonrigid Motion and Structure
IEEE Transactions on Pattern Analysis and Machine Intelligence
Digital Image Processing
Optimal Motion and Structure Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Recursive Estimation of Motion, Structure, and Focal Length
IEEE Transactions on Pattern Analysis and Machine Intelligence
Object Oriented Face Detection Using Range and Color Information
FG '98 Proceedings of the 3rd. International Conference on Face & Gesture Recognition
Face Detection Using Multi-Modal Information
FG '00 Proceedings of the Fourth IEEE International Conference on Automatic Face and Gesture Recognition 2000
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
A Paraperspective Factorization Method for Shape and Motion Recovery
A Paraperspective Factorization Method for Shape and Motion Recovery
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Robust extraction of 3D facial features and global motion information from 2D image sequence for the MPEG-4 SNHC face model encoding is described. The facial regions are detected from image sequence using multi-modal fusion technique that combines range, color and motion information. 23 facial features among the MPEG-4 FDP(Face Definition Parameters) are extracted automatically inside the facial region using morphological processing. The extracted facial features are used to recover the 3D shape and global motion of the object using paraperspective factorization method. Stereo view and averaging technique are used to reduce the depth estimation error caused by the inherent paraperspective camera model. The recovered 3D motion information is transformed into global motion parameters of FAP(Face Animation Parameters) of the MPEG-4 to synchronize a generic face model with a real face.