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Person verification by lip-motion

Person Verifiering med hjälp av läpp rörelser

Maycel Isaac Faraj (Institutionen för signaler och system) ; Josef Bigun
In Computer Vision and Pattern Recognition Workshop on Biometrics, CWPRW p. 37-44. (2006)
[Konferensbidrag, refereegranskat]

This paper describes a new motion based feature extraction technique for speaker recognition using orientation estimation in 2D manifolds. The motion is estimated by computing the components of the structure tensor from which normal flows are extracted. By projecting the 3D spatiotemporal data to 2-D planes we obtain projection coefficients which we use to evaluate the 3-D orientations of brightness patterns in TV like 2D image sequences. This corresponds to the solutions of simple matrix eigenvalue problems in 2D, affording increased computational efficiency. An implementation based on joint lip movements and speech is presented along with experiments which confirm the theory, exhibiting a recognition rate of 98% on the publicly available XM2VTS database

Denna post skapades 2007-01-04.
CPL Pubid: 24924


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