Image Determination Device, Image Determination Method, and Program
First Claim
1. An image determination device comprising:
- extraction means for extracting a figuration pattern of an identification subject in a finger reflected on an image;
detection means for detecting a joint line in the finger; and
determination means for determining the image as an image to be registered or an image to be collated with a registration subject when a joint line exists in a first range which is set in one of respective regions obtained when separating the image with the center line that corresponds to a direction perpendicular to the longitudinal direction of the finger and that is set as the border, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in a second range which is set in the other region different from the region in which the first range is set.
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Abstract
An image determination device according to the present invention includes: an extraction means for extracting a figuration pattern of an identification subject in a finger reflected on an image; a detection means for detecting a joint line in the finger; and a determination means for determining the image as an image to be registered or an image to be collated with a registration subject when a joint line exists in a first range which is set in one of respective regions obtained when separating the image with the center line that corresponds to a direction perpendicular to the longitudinal direction of the finger and that is set as the border, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in a second range which is set in the other region different from the region in which the first range is set.
28 Citations
8 Claims
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1. An image determination device comprising:
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extraction means for extracting a figuration pattern of an identification subject in a finger reflected on an image; detection means for detecting a joint line in the finger; and determination means for determining the image as an image to be registered or an image to be collated with a registration subject when a joint line exists in a first range which is set in one of respective regions obtained when separating the image with the center line that corresponds to a direction perpendicular to the longitudinal direction of the finger and that is set as the border, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in a second range which is set in the other region different from the region in which the first range is set. - View Dependent Claims (2, 3, 4, 5)
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6. An image determination method comprising:
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a first step of setting a first range in one of respective regions obtained when separating an image with the center line that corresponds to a direction perpendicular to the longitudinal direction of a finger reflected on the image and that is set as the border, and, in case a joint line of the finger does not exist in the set first range, setting the first range in the other region of the respective regions; a second step of, when the joint line exists in the first range, setting a second range in the other region different from the region in which the first range is set; and a third step of, when the joint line exists in the first range, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in the second range, determining the image as an image to be registered or an image to be collated with a registration subject.
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7. A program that makes a control unit controlling a work memory execute:
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setting a first range in one of respective regions obtained when separating an image input to the control unit with the center line that corresponds to a direction perpendicular to the longitudinal direction of a finger reflected on the image and that is set to the border, and, in case a joint line of the finger does not exist in the set first range, setting the first range in the other region of the respective regions; when the joint line exists in the first range, setting a second range in the other region different from the region in which the first range is set; and when the joint line exists in the first range, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in the second range, determining the image as an image to be registered or an image to be collated with a registration subject.
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8. An image determination device comprising:
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an extraction unit that extracts a figuration pattern of an identification subject in a finger reflected on an image; a detection unit that detects a joint line in the finger; a determination unit that determines the image as an image to be registered or an image to be collated with a registration subject when a joint line exists in a first range which is set in one of respective regions obtained when separating the image with the center line that corresponds to a direction perpendicular to the longitudinal direction of the finger and that is set as the border, and a blood vessel amount which is equal to or more than a predetermined threshold value exists in a second range which is set in the other region different from the region in which the first range is set.
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Specification