Identity verification apparatus and fingerprint image pickup method
First Claim
1. An identity verification apparatus comprising:
- a light source for applying light that can pass through an object to be detected having a fingerprint to said object to be detected;
an image pickup means for picking up both light emitted out of said light source and passing through projections of said fingerprint and light emitted out of said light source and passing through depressions of said fingerprint, and for generating a fingerprint image including dark portions corresponding to said projections and bright portions corresponding to said depressions; and
a signal processing unit for performing image processing on said fingerprint image generated by said image pickup means so as to generate fingerprint information, and for verifying an identity based on the fingerprint information.
1 Assignment
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Accused Products
Abstract
An identity verification apparatus includes a light source for applying light that can pass through an object to be detected having a fingerprint to the object to be detected, an image pickup unit for picking up both light emitted out of the light source and passing through projections of the fingerprint and light emitted out of the light source and passing through depressions of the fingerprint, and for generating a fingerprint image including dark portions corresponding to the projections and bright portions corresponding to the depressions, and a signal processing unit for performing image processing on the fingerprint image generated by the image pickup unit so as to generate fingerprint information, and for verifying an identity based on the fingerprint information.
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Citations
15 Claims
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1. An identity verification apparatus comprising:
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a light source for applying light that can pass through an object to be detected having a fingerprint to said object to be detected;
an image pickup means for picking up both light emitted out of said light source and passing through projections of said fingerprint and light emitted out of said light source and passing through depressions of said fingerprint, and for generating a fingerprint image including dark portions corresponding to said projections and bright portions corresponding to said depressions; and
a signal processing unit for performing image processing on said fingerprint image generated by said image pickup means so as to generate fingerprint information, and for verifying an identity based on the fingerprint information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An identity verification apparatus comprising:
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a light source for applying light that can pass through an object to be detected having a fingerprint to said object to be detected, a fingerprint side surface of said object to be detected, which is an object to be detected, being in noncontact with any structure;
an image pickup means for picking up both light emitted out of said light source and passing through projections of said fingerprint and light emitted out of said light source and passing through depressions of said fingerprint, and for generating a fingerprint image including dark portions corresponding to said projections and bright portions corresponding to said depressions; and
a signal processing unit for performing image processing on said fingerprint image generated by said image pickup means so as to generate fingerprint information, and for verifying an identity based on the fingerprint information. - View Dependent Claims (13, 14)
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15. A fingerprint image pickup method comprising the steps of:
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applying light that can pass through an object to be detected having a fingerprint to said object to be detected; and
generating a fingerprint image corresponding to light transmittance of internal tissues that are close to a fingerprint side surface of said object to be detected.
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Specification