Liveness detection
First Claim
1. A liveness detection system comprising:
- a video input configured to receive a moving image of an entity captured by a camera over an interval of time; and
one or more hardware processors configured to;
control a display to display, to the entity over the interval of time, at least one randomly selected word at a random location of the display;
process the moving image to detect an eye and a mouth of the entity;
compare;
(i) movement of the mouth exhibited over the interval of time with the randomly selected word using a lip reading algorithm, to determine whether the mouth is speaking the randomly selected word in the moving image, and(ii) movement of the eye exhibited over the interval of time with the random location of the randomly selected word, to determine whether the eye exhibits an expected movement in the moving image, to thereby determine whether the entity is a living being; and
grant or refuse an access request for the entity, the access request relating to a computer system, based on said determination as to whether the entity is a living being.
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Accused Products
Abstract
In a liveness detection system, a first set of one or more parameters of a first liveness test is selected at random. The first parameter set is transmitted to a user device available to an entity, thereby causing the user device to perform the first liveness test according to the first parameter set. Results of the first liveness test performed at the user device according to the first parameter set are received form the user device. Results of a second liveness test pertaining to the entity are received. The liveness detection system determines whether the entity is a living being using the results of the liveness tests, the results of the first liveness test being so used by comparing them with the first parameter set.
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Citations
11 Claims
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1. A liveness detection system comprising:
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a video input configured to receive a moving image of an entity captured by a camera over an interval of time; and one or more hardware processors configured to; control a display to display, to the entity over the interval of time, at least one randomly selected word at a random location of the display; process the moving image to detect an eye and a mouth of the entity; compare; (i) movement of the mouth exhibited over the interval of time with the randomly selected word using a lip reading algorithm, to determine whether the mouth is speaking the randomly selected word in the moving image, and (ii) movement of the eye exhibited over the interval of time with the random location of the randomly selected word, to determine whether the eye exhibits an expected movement in the moving image, to thereby determine whether the entity is a living being; and grant or refuse an access request for the entity, the access request relating to a computer system, based on said determination as to whether the entity is a living being. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-implemented liveness detection method comprising:
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controlling a display to display, to an entity over an interval of time, at least one randomly selected word at a random location of the display; receiving a moving image of the entity captured by a camera over the interval of time; processing the moving image to detect an eye and a mouth of the entity; comparing; (i) movement of the mouth exhibited over the interval of time with the randomly selected word using a lip reading algorithm, to determine whether the mouth is speaking the randomly selected word in the moving image, and (ii) movement of the eye exhibited over the interval of time with the random location of the randomly selected word, to determine whether the eye exhibits an expected movement in the moving image, to thereby determine whether the entity is a living being; and granting or refusing an access request for the entity, the access request relating to a computer system, based on said determination as to whether the entity is a living being.
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11. Non-transitory computer-readable media comprising computer readable instructions that, when executed by a computing system, cause the computing system to implement a method comprising:
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controlling a display, to display to an entity over an interval of time, at least one randomly selected word at a random location of the display; receiving a moving image of the entity captured by a camera over the interval of time; processing the moving image to detect an eye and a mouth of the entity; comparing; (i) movement of the mouth exhibited over the interval of time with the randomly selected word using a lip reading algorithm, to determine whether the mouth is speaking the randomly selected word in the moving image, and (ii) movement of the eye exhibited over the interval of time with the random location of the randomly selected word, to determine whether the eye exhibits an expected movement in the moving image, to thereby determine whether the entity is a living being; and granting or refusing an access request for the entity, the access request relating to a computer system, based on said determination as to whether the entity is a living being.
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Specification