Lip motion features for biometric person recognition
Kapitel i bok, 2009

The present chapter reports on the use of lip motion as a stand alone biometric modality as well as a modality integrated with audio speech for identity recognition using digit recognition as a support. First, the auhtors estimate motion vectors from images of lip movements. The motion is modeled as the distribution of apparent line velocities in the movement of brightness patterns in an image. Then, they construct compact lip-motion features from the regional statistics of the local velocities. These can be used as alone or merged with audio features to recognize identity or the uttered digit. The author's present person recognition results using the XM2VTS database representing the video and audio data of 295 people. Furthermore, we present results on digit recognition when it is used in a text prompted mode to verify the liveness of the user. Such user challenges have the intention to reduce replay attack risks of the audio system.


Maycel Isaac Faraj

Högskolan i Halmstad

Josef Bigun

Chalmers, Signaler och system

Visual Speech Recognition: Lip Segmentation and Mapping

978-160566186-5 (ISBN)


Data- och informationsvetenskap

Elektroteknik och elektronik





Mer information

Senast uppdaterat