The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2006
Filed:
Sep. 28, 2001
Hideyo Takeuchi, Nagoya, JP;
Taizo Umezaki, Tajimi, JP;
Hideyo Takeuchi, Nagoya, JP;
Taizo Umezaki, Tajimi, JP;
Chuo Hatsujo Kabushiki Kaisha, Nagoya, JP;
Abstract
The present invention provides technologies for narrowing down fingerprints images, which will be used for identity determination, without extracting auxiliary information such as a fingerprint pattern, thereby shortening the time required for fingerprint verification. The device according to the present invention includes a storage meansfor storing characteristic information extracted from fingerprint images of registered persons, and a collection meansfor collecting a fingerprint image. First, a extraction meansextracts characteristic information from the fingerprint image collected by the collection means. Next, a narrowing meanscalculates a similarity between part of the characteristic information of the person to be identified, which was extracted by the extraction means, and corresponding part of the characteristic information of each of the registered persons, which is stored in the storage means. Based upon the calculated similarity, the registered fingerprints that will be used for the identity determination are narrowed down. Then, an determination meansdetermines whether or not the characteristic information of each of the registered fingerprints, which were narrowed down by the narrowing means, matches the characteristic information of the person to be identified, which was extracted by the extraction means According to this device, the registered fingerprints that will be used for the identity determination are narrowed down by using the characteristic information that will be used for the identity determination. Therefore, without extracting auxiliary information, such as a fingerprint pattern, from the collected fingerprint image, the fingerprint images that will be used in order to determine the identity of the fingerprint are narrowed down. Thus, the time required for the fingerprint verification can be shortened.