Plain four-finger image determination device, plain four-finger image determination method and plain four-finger determination program
First Claim
1. A plain four-finger image determination device which makes determination of a kind of a hand and a kind of finger from a plain four-finger image of a hand, comprising:
- a unit which extracts a ridge line direction in the vicinity of a core of a fingerprint from a fingerprint image of each finger cut out from said plain four-finger image to determine a tendency of the ridge line direction for each fingerprint of each said finger, and a unit which verifies a kind of hand and a kind of finger based on a combination of tendencies of said ridge line directions of said four fingers.
1 Assignment
0 Petitions
Accused Products
Abstract
The plain four-finger image determination device includes a cut-out unit which cuts out a fingerprint image of each finger from a plain four-finger image, an extraction unit which extracts a core of a fingerprint from each cut-out fingerprint image and a ridge line direction in the vicinity of the core of the fingerprint, an evaluation unit which makes hand determination and determination of a kind of finger based on a relationship of heights of cores of the fingerprints in the respective fingers, an evaluation unit which makes hand determination and determination of a kind of finger based on a combination of tendencies of ridge line directions each determined for each fingerprint of each finger, and a determination unit which makes ultimate hand determination and determination of a kind of finger based on confidence obtained by merging confidences of both the determination results.
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Citations
36 Claims
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1. A plain four-finger image determination device which makes determination of a kind of a hand and a kind of finger from a plain four-finger image of a hand, comprising:
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a unit which extracts a ridge line direction in the vicinity of a core of a fingerprint from a fingerprint image of each finger cut out from said plain four-finger image to determine a tendency of the ridge line direction for each fingerprint of each said finger, and a unit which verifies a kind of hand and a kind of finger based on a combination of tendencies of said ridge line directions of said four fingers. - View Dependent Claims (2, 3, 4, 5)
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6. A plain four-finger image determination device which makes determination of a kind of hand and a kind of finger from a plain four-finger image of a hand, comprising:
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a unit which extracts a core of a fingerprint from a fingerprint image of each finger cut out from said plain four-finger image, and a unit which verifies a kind of hand and a kind of finger based on a relationship of heights of cores of fingerprints in said respective fingers. - View Dependent Claims (7, 8, 9, 10)
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11. A plain four-finger image determination device which makes determination of a kind of hand and a kind of finger from a plain four-finger image of a hand, comprising:
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a unit which cuts out a fingerprint image of each finger from said plain four-finger image to extract a core of a fingerprint from each cut-out fingerprint image and a ridge line direction in the vicinity of the core of the fingerprint, and a unit which verifies a kind of hand and a kind of finger based on a relationship of heights of cores of fingerprints in said respective fingers and a combination of tendencies of said ridge line directions each determined for each of the fingerprints of said respective fingers. - View Dependent Claims (12, 13, 14)
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15. A plain four-finger image determination method of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, comprising the steps of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a ridge line direction in the vicinity of a core of a fingerprint from each cut-out fingerprint image, determining a tendency of the ridge line direction for each fingerprint of said respective fingers, and determining a kind of a hand and a kind of finger based on a combination of tendencies of said ridge line directions of said four fingers. - View Dependent Claims (16, 17, 18, 19)
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20. A plain four-finger image determination method of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, comprising the steps of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a core of a fingerprint from each cut-out fingerprint image, and determining a kind of hand and a kind of finger based on a relationship of heights of cores of fingerprints of said respective fingers. - View Dependent Claims (21, 22)
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23. A plain four-finger image determination method of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, comprising the steps of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a core of a fingerprint from each cut-out fingerprint image and a ridge line direction in the vicinity of the core of the fingerprint, and determining a kind of hand and a kind of finger based on a relationship of heights of cores of fingerprints in said respective fingers and a combination of said ridge line direction tendencies each determined for each fingerprint of said each finger. - View Dependent Claims (24, 25)
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26. A plain four-finger image determination program for controlling a computer to execute processing of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, which execute the functions of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a ridge line direction in the vicinity of a core of a fingerprint from each cut-out fingerprint image, determining a tendency of the ridge line direction for each fingerprint of said respective fingers, and determining a kind of hand and a kind of finger based on a combination of tendencies of said ridge line directions of said four fingers. - View Dependent Claims (27, 28, 29, 30)
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31. A plain four-finger image determination program for controlling a computer to execute processing of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, which executes the function of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a core of a fingerprint from each cut-out fingerprint image, and making said hand determination and determination of a kind of finger based on a relationship of heights of cores of fingerprints of said respective fingers. - View Dependent Claims (32, 33)
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34. A plain four-finger image determination program for controlling a computer to execute processing of determining a kind of hand and a kind of finger from a plain four-finger image of a hand, which executes the functions of:
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cutting out a fingerprint image of each finger from said plain four-finger image, extracting a core of a fingerprint from each cut-out fingerprint image and a ridge line direction in the vicinity of the core of the fingerprint, and determining a kind of hand and a kind of finger based on a relationship of heights of cores of fingerprints in said respective fingers and a combination of said ridge line direction tendencies each determined for each fingerprint of said each finger. - View Dependent Claims (35, 36)
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Specification