Device, system, and method of liveness detection utilizing voice biometrics
First Claim
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1. An apparatus comprising:
- at least one machine-readable medium storing a plurality of voice-prints corresponding to voice characteristics of respective enrolled users; and
at least one processor programmed to perform;
providing a first prompt to obtain a text-dependent audio sample from a user at an evaluation stage;
providing a second prompt to obtain a text-independent audio sample from the user at the evaluation stage;
andcomparing a voice print of the text-dependent audio sample and the text-independent audio sample;
making an authentication decision about the user based, at least in part, on results of;
a comparison between the text-dependent audio sample and a voice print from an enrollment audio sample received at an enrollment stage and the comparison between the voice print of the text-dependent audio sample and the text-independent audio sample.
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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. An apparatus comprising:
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at least one machine-readable medium storing a plurality of voice-prints corresponding to voice characteristics of respective enrolled users; and at least one processor programmed to perform; providing a first prompt to obtain a text-dependent audio sample from a user at an evaluation stage; providing a second prompt to obtain a text-independent audio sample from the user at the evaluation stage; and comparing a voice print of the text-dependent audio sample and the text-independent audio sample; making an authentication decision about the user based, at least in part, on results of;
a comparison between the text-dependent audio sample and a voice print from an enrollment audio sample received at an enrollment stage and the comparison between the voice print of the text-dependent audio sample and the text-independent audio sample. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus comprising:
at least one processor programmed to perform; providing a first prompt to obtain a text-dependent audio sample from a user at an evaluation stage; providing a second prompt to obtain a text-independent audio sample from the user at the evaluation stage; and making an authentication decision about the user based, at least in part, on results of;
a comparison between characteristics of the text-dependent audio sample and an enrollment audio sample received at an enrollment stage and a comparison between characteristics of the text-dependent audio sample and the text-independent audio sample.- View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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at least one machine-readable medium storing a plurality of voice-prints corresponding to voice characteristics of respective enrolled users; and at least one processor programmed to perform; providing a first prompt to obtain a text-dependent audio sample from a user at an evaluation stage; providing a second prompt to obtain a text-independent audio sample from the user at the evaluation stage; and making an authentication decision about the user based, at least in part, on results of a comparison between characteristics of the text-dependent audio sample and a voice print of an enrollment audio sample received at an enrollment stage and a comparison between a voice print of the text-dependent audio sample and characteristics of the text-independent audio sample. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification