Image processing device, image processing method, and storage medium storing image processing program
First Claim
1. An image processing device comprising:
- a processor; and
a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute,acquiring a plurality of captured images;
extracting, from each of the plurality of captured images, a first feature amount and a second feature amount of a user included in the captured image, and a third feature amount indicating a condition of acquiring of the captured image;
generating an authentication table including a plurality of templates, each of which corresponds to each of the plurality of the captured images, each of the templates including the first feature amount, the second feature amount, and the third feature amount extracted from each of the plurality of captured images;
acquiring an authentication image of a target user;
extracting the third feature amount from the authentication image of the target user;
selecting a template among the plurality of the templates by comparing the third feature amount of the authentication image and a plurality of third feature amounts included in the authentication table; and
authenticating the target user based on the first feature amount and the second feature amount which are included in the selected template, and the first feature amount and the second feature amount which are extracted from the authentication image.
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Abstract
An image processing device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, acquiring a captured image; extracting a first feature amount and a second feature amount of a user included in the image, and a third feature amount indicative of a likelihood of a portion from which the second feature amount is extracted; generating an authentication table including a plurality of the first feature amounts, a plurality of the second feature amounts, and a plurality of the third feature amounts extracted from a plurality of the images; and selecting the third feature amount extracted at authentication of the user, and the first feature amount and the second feature amount included in the authentication table, based on the third feature amount included in the authentication table, and authenticating the user based on the first feature amount.
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Citations
20 Claims
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1. An image processing device comprising:
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a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, acquiring a plurality of captured images; extracting, from each of the plurality of captured images, a first feature amount and a second feature amount of a user included in the captured image, and a third feature amount indicating a condition of acquiring of the captured image; generating an authentication table including a plurality of templates, each of which corresponds to each of the plurality of the captured images, each of the templates including the first feature amount, the second feature amount, and the third feature amount extracted from each of the plurality of captured images; acquiring an authentication image of a target user; extracting the third feature amount from the authentication image of the target user; selecting a template among the plurality of the templates by comparing the third feature amount of the authentication image and a plurality of third feature amounts included in the authentication table; and authenticating the target user based on the first feature amount and the second feature amount which are included in the selected template, and the first feature amount and the second feature amount which are extracted from the authentication image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
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10. An image processing method comprising:
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acquiring a plurality of captured images; extracting, from each of the plurality of captured images, a first feature amount and a second feature amount of a user included in the captured image, and a third feature amount indicating a condition of acquiring of the captured image; generating, by a computer processor, an authentication table including a plurality of templates, each of which corresponds to each of the plurality of the captured images, each of the templates including the first feature amount, the second feature amount, and the third feature amount extracted from each of the plurality of captured images; acquiring an authentication image of a target user; extracting the third feature amount from the authentication image of the target user; selecting a template among the plurality of the templates by comparing the third feature amount of the authentication image and a plurality of third feature amounts included in the authentication table; and authenticating the target user based on the first feature amount and the second feature amount which are included in the selected template, and the first feature amount and the second feature amount which are extracted from the authentication image. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer-readable storage medium storing an image processing program that causing a computer to execute a process comprising:
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acquiring a plurality of captured images; extracting, from each of the plurality of captured images, a first feature amount and a second feature amount of a user included in the captured image, and a third feature amount indicating a condition of acquiring of the captured image; generating an authentication table including a plurality of templates, each of which corresponds to each of the plurality of the captured images, each of the templates including the first feature amount, the second feature amount, and the third feature amount extracted from each of the plurality of captured images; acquiring an authentication image of a target user; extracting the third feature amount from the authentication image of the target user; selecting a template among the plurality of the templates by comparing the third feature amount of the authentication image and a plurality of third feature amounts included in the authentication table; and authenticating the target user based on the first feature amount and the second feature amount which are included in the selected template, and the first feature amount and the second feature amount which are extracted from the authentication image.
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Specification