Personal access control system using speech and face recognition
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United States of America Patent
Stats
-
May 15, 1984
Grant Date -
N/A
app pub date -
Nov 20, 1981
filing date -
Nov 20, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and an apparatus are disclosed for identifying an individual through a combination of both speech and face recognition. The voice signature of an interrogated person uttering a key word into a microphone is compared in a pattern matcher with the previously stored voice signature of a known person uttering the same key word to obtain a first similarity score. At the same time, when a key event in the utterance of the key word by the interrogated person occurs, a momentary image of that person's mouth region onto which a grid pattern has been projected is optically recorded and compared with the previously stored corresponding momentary image of the same known person to obtain a second similarity score. The two similarity scores are analyzed to verify that the identity of the interrogated person is that of the known person.
First Claim
Family
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