Device,system, and method of liveness detection utilizing voice biometrics
First Claim
Patent Images
1. A method comprising:
- generating a first matching score based on a comparison between;
(a) a voice-print from a first text-dependent audio sample received at an enrollment stage, and (b) a second text-dependent audio sample received at an authentication stage;
generating a second matching score based on a text-independent audio sample; and
generating a liveness score by taking into account at least the first matching score and the second matching score.
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Abstract
Device, system, and method of liveness detection using voice biometrics. For example, a method comprises: generating a first matching score based on a comparison between: (a) a voice-print from a first text-dependent audio sample received at an enrollment stage, and (b) a second text-dependent audio sample received at an authentication stage; generating a second matching score based on a text-independent audio sample; and generating a liveness score by taking into account at least the first matching score and the second matching score.
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Citations
20 Claims
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1. A method comprising:
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generating a first matching score based on a comparison between;
(a) a voice-print from a first text-dependent audio sample received at an enrollment stage, and (b) a second text-dependent audio sample received at an authentication stage;generating a second matching score based on a text-independent audio sample; and generating a liveness score by taking into account at least the first matching score and the second matching score. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a speaker recognition sub-system, to generate a first matching score based on a comparison between;
(a) a voice-print from a first text-dependent audio sample received at an enrollment stage, and (b) a second text-dependent audio sample received at an authentication stage;to generate a second matching score based on a text-independent audio sample; and to generate a liveness score by taking into account at least the first matching score and the second matching score. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A speaker recognition module comprising:
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a text-dependent enrollment module to capture a text-dependent audio sample during an enrollment stage, and to generate from the text-dependent audio sample a text-dependent voice signature during said enrollment stage; a text-dependent audio acquisition module to acquire a text-dependent audio sample during an authentication stage; a text-dependent authentication module to generate a first score based on a comparison between;
(a) the text-dependent voice signature generated during said enrollment stage, and (b) the text-dependent audio sample acquired during said authentication stage;a text-independent audio acquisition module to acquire a text-independent audio sample during a liveness detection stage by prompting a user to say a phrase selected pseudo-randomly from a pool of pre-defined phrases; a text-independent authentication module to generate a second score based at least on a comparison between;
(1) said text-independent audio sample acquired during said liveness detection stage, and (2) a text independent voice signature generated from said text-dependent audio sample acquired during said authentication stage;an utterance validation module to generate a validation score corresponding to validity of said text-independent audio sample acquired during said liveness detection stage; and a fusion module to generate a liveness detection score based on at least said first score, said second score, and said validation score. - View Dependent Claims (20)
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Specification