Biological pattern information processing device, biological pattern information processing method, and program
AssigneeNEC Corporation
InventorsKan Satou, Yoshinori Suzuki, Masanori Mizoguchi, Masanori Hara
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A fingerprint image information processing device comprising:
- at least one hardware processor configured to implement:
- acquiring image information indicating an image of a fingerprint;
- detecting a directional singular point of a ridge line from the image;
- detecting a singular region indicating damage of a finger;
- finding an evaluation value for each portion included in the image of the fingerprint, based on a correlation between ridge line direction information and an abnormal ridge line directional pattern template that is preliminarily held, the evaluation value representing a degree to which the ridge line direction information has an abnormal ridge line directional pattern;
- extracting a linear component of the evaluation value in the image of the fingerprint;
- and
- repairing the damage by mutually replacing fingerprint images included in a first polygon and a second polygon determined based on the extracted linear component.
A fingerprint image information processing method executed by a computer, comprising:
- acquiring image information indicating an image of a fingerprint;
- detecting a directional singular point of a ridge line from the image;
- detecting a singular region indicating damage of a finger;
- finding an evaluation value for each portion included in the image of the fingerprint, based on a correlation between ridge line direction information and an abnormal ridge line directional pattern template that is preliminarily held, the evaluation value representing a degree to which the ridge line direction information has an abnormal ridge line directional pattern;
- extracting a linear component of the evaluation value in the image of the fingerprint;
- and
- repairing the damage by mutually replacing fingerprint images included in a first polygon and a second polygon determined based on the extracted linear component.
A non-transitory computer-readable recording medium storing computer-executable program, the program comprising:
- instructions for acquiring image information indicating an image of a fingerprint;
- instructions for detecting a directional singular point of a ridge line from the image;
- instructions for detecting a singular region indicating damage of a finger;
- instructions for finding an evaluation value for each portion included in the image of the fingerprint, based on a correlation between ridge line direction information and an abnormal ridge line directional pattern template that is preliminarily held, the evaluation value representing a degree to which the ridge line direction information has an abnormal ridge line directional pattern;
- instructions for extracting a linear component of the evaluation value in the image of the fingerprint;
- and
- instructions for repairing the damage by mutually replacing fingerprint images included in a first polygon and a second polygon determined based on the extracted linear component.
Dependencies are inferred from the claim text.