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Patent Title: Speech recognition aided by lateral profile image

Assignee: IBM
Patent Number: US6185529
Issue Date: 02-06-2001
Application Number:
File Date:09-14-1998


Abstract: An apparatus and a method for imaging the mouth area laterally to produce reliable measurements of mouth and lip shapes for use in assisting the speech recognition task. A video camera is arranged with a headset and a microphone to capture a lateral profile image of a speaker. The lateral profile image is then used to compute features such as lip separation, lip shape and intrusion depth parameters. The parameters are used in real time, during speech recognition process to characterize and discriminate spoken phonemes to produce a high degree of accuracy in automatic speech recognition processing, especially in a noisy environment.

Notes:

Link to USPTO

IBM Pledge dated 1/11/2005