Patent ID: 9159321
Filing Date: 2015-10-13
Classification: G06K,G10L

Abstract:
1. A lip-based speaker verification system for identifying a speaker, comprising one or more computer processors for executing a process of verification of identity of the speaker using one modality of lip motions; wherein an identification key of the speaker comprising one or more passwords; wherein the one or more passwords are embedded into lip motions of the speaker; wherein the speaker is verified by underlying dynamic characteristics of the lip motions and extracted area-based features wherein the extracted area-based features further comprise teeth, tongue and oral cavity during the utterance; and wherein the speaker is required to match the one or more passwords embedded in the lip motions with registered information in a database such that the matching between the dynamic characteristics of the speaker lip motions and the extracted area-based features with the one or more passwords is verified by using one or more multi-boosted hidden Markov models (HMMs); wherein the process comprises the steps of: (1) extracting visual features for each lip frame; (2) performing lip motion segmentation of D to yield D={D (3) for each value of m=1, . . . , p, performing the steps of: