]> 2026-04-04T17:31:29+02:00 Publications:Lip Motion Features for Biometric Person Recognition 500 en <p>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.</p> http://dx.doi.org/10.4018/978-1-60566-186-5.ch017 http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:408383 532 Visual Speech Recognition : Lip Segmentation and Mapping Book Chapter 495 Lip Motion Features for Biometric Person Recognition 2009 2016-09-30T20:41:58Z 2457662.3624769 Lip Motion Features for Biometric Person Recognition 500 0 plainlist list 1 [[:Publications:Lip Motion Features for Biometric Person Recognition]] Lip Motion Features for Biometric Person Recognition# QUERYa820afc5d042ef2d7242db6fb040c9ca 500 [2,"smw-datavalue-property-restricted-annotation-use","Publisher"] Lip Motion Features for Biometric Person Recognition# ERR6c155b5d70b69ddb590b4f2e73389c2a 500 [2,"smw-datavalue-property-restricted-annotation-use","Author"] Lip Motion Features for Biometric Person Recognition# ERRe24f17e090c98448f3de99d03182b7b6