Personal access control system using speech and face recognition
First Claim
1. A method for identifying an individual through a combination of speech and face recognition which comprises:
- (a) defining a characteristic sequence of features of the voice in response to the utterance of a predetermined key word by the individual to be identified;
(b) forming a momentary image of a voice-utterance varying portion of the individual'"'"'s face upon the occurrence of a key event in the utterance of the key word; and
(c) using both the defined sequence of features and the momentary image in order to determine the identity or non-identity of the individual.
3 Assignments
0 Petitions
Accused Products
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.
188 Citations
13 Claims
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1. A method for identifying an individual through a combination of speech and face recognition which comprises:
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(a) defining a characteristic sequence of features of the voice in response to the utterance of a predetermined key word by the individual to be identified; (b) forming a momentary image of a voice-utterance varying portion of the individual'"'"'s face upon the occurrence of a key event in the utterance of the key word; and (c) using both the defined sequence of features and the momentary image in order to determine the identity or non-identity of the individual. - View Dependent Claims (3, 4, 5)
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2. A method for identifying an individual through a combination of speech and face recognition which comprises
(a) defining a characteristic sequence of features of the voice in response to the utterance of a predetermined key word by the individual to be identified; -
(b) forming a sequence of momentary images of a voice-utterance varying portion of the individual'"'"'s face upon the occurrence of a sequence of key events in the utterance of the key word; and (c) using both the defining sequence of features and the sequence of momentary images to determine the identity or non-identity of the individual.
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6. Apparatus for identifying an individual through a combination of speech and face recognition which comprises:
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(a) means for defining a characteristic sequence of features of the voice in response to the utterance of a predetermined key word by the individual to be identified; (b) means for forming a momentary image of a voice-utterance varying portion of the individual'"'"'s face upon the occurrence of a key event in the utterance of the key word; and (c) identification means connected to both the defining means and the momentary image-forming means for using both the defined sequence of features and the momentary image in order to determine the identity or non-identity of the individual. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification