Biological pattern information processing device, biological pattern information processing method, and program
A biological pattern information processing device includes: a biological pattern information acquisition unit that acquires biological pattern information indicating a biological pattern; and a singular region detection unit that detects a singular region including damage, from the biological pattern indicated by the acquired biological pattern information.
1. A biological image information processing device comprising:
a memory; and
a hardware component that reads data from the memory and is configured to:
acquire biological image information showing ridge lines;
detect a singular region in a pattern of the ridge lines;
determine, as a region for collation, a region free from the detected singular region; and
collate biological pattern information, in the region free from the detected singular region, with biological pattern information preliminarily registered in a memory.
2. The biological image information processing device according to claim 1 , wherein the hardware component is configured to detect a position that is furthest away from the singular region and configured to determine the region free from the detected singular region based on the detected position.
3. The biological image information processing device according to claim 2 , wherein the hardware component is configured to determine, as the region for collation, a region within which transition of directions of the ridge lines from the detected position and pitches of the ridge lines from the detected position are not abnormal.
4. The biological image information processing device according to claim 2 , wherein the hardware component is configured to determine, as the region for collation, a region of points included in a circle whose radius is equal to a length between the detected position and the abnormal region, the circle being centered at the detected position.
5. The biological image information processing device according to claim 2 , wherein the hardware component is further configured to:
when performing collation of the pattern of the ridge lines in which the singular region is detected with a preregistered pattern, change at least either one of a positional deviation allowance which represents a degree to which positional deviation is allowed, and a mismatch allowance which represents a degree to which a mismatch is allowed, such that the pattern of the ridge lines in which the singular region is detected becomes more likely to be regarded to be same as the pre-registered pattern.
6. A biological image processing method comprising:
acquiring biological image information showing ridge lines;
detecting a singular region in a pattern of the ridge lines;
determining, as a region for collation, a region free from the detected singular region; and
collating biological pattern information, in the region free from the detected singular region, with biological pattern information preliminarily registered in a memory.
7. The biological image information processing method according to claim 6 , further comprising detecting a position that is furthest away from the singular region,
wherein determining comprises determining the region free from the detected singular region based on the detected position.
8. The biological image information processing method according to claim 7 , comprising determining, as the region for collation, a region within which transition of directions of the ridge lines from the detected position and pitches of the ridge lines from the detected position are not abnormal.
9. The biological image information processing method according to claim 7 , comprising determining, as the region for collation, a region of points included in a circle whose radius is equal to a length between the detected position and the abnormal region, the circle being centered at the detected position.
10. The biological image information processing method according to claim 7 , further comprising changing, when performing collation of the pattern of the ridge lines in which the singular region is detected with a pre-registered pattern, at least either one of a positional deviation allowance which represents a degree to which positional deviation is allowed, and a mismatch allowance which represents a degree to which a mismatch is allowed, such that the pattern of the ridge lines in which the singular region is detected becomes more likely to be regarded to be same as the pre-registered pattern.
11. A non-transitory computer-readable storage medium storing a program that causes a computer to perform:
acquiring biological image information showing ridge lines;
detecting a singular region in a pattern of the ridge lines;
determining, as a region for collation, a region free from the detected singular region; and
collating biological pattern information, in the region free from the detected singular region, with biological pattern information preliminarily registered in a memory.
12. The storage medium according to according to claim 11 ,
wherein the program further causes the computer to perform detecting a position that is furthest away from the singular region, and
wherein determining comprises determining the region free from the detected singular region based on the detected position.
13. The storage medium according to claim 12 , wherein the program further causes the computer to perform determining, as the region for collation, a region within which transition of directions of the ridge lines from the detected position and pitches of the ridge lines from the detected position are not abnormal.
14. The storage medium according to claim 12 , wherein the program further causes the computer to perform determining, as the region for collation, a region of points included in a circle whose radius is equal to a length between the detected position and the abnormal region, the circle being centered at the detected position.
15. The storage medium according to claim 12 , wherein the program further causes the computer to perform changing, when performing collation of the pattern of the ridge lines in which the singular region is detected with a pre-registered pattern, at least either one of a positional deviation allowance which represents a degree to which positional deviation is allowed, and a mismatch allowance which represents a degree to which a mismatch is allowed, such that the pattern of the ridge lines in which the singular region is detected becomes more likely to be regarded to be same as the pre-registered pattern.