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:
Mar. 01, 2011
Filed:
Mar. 17, 2006
Keisuke Watanabe, Mizuho, JP;
Tatsuya Masuda, Gunma, JP;
Tatsushi Ohyama, Ogaki, JP;
Hirofumi Saitoh, Ogaki, JP;
Yasunari Takasaki, Gifu, JP;
Masaya Okumura, Gifu, JP;
Keisuke Watanabe, Mizuho, JP;
Tatsuya Masuda, Gunma, JP;
Tatsushi Ohyama, Ogaki, JP;
Hirofumi Saitoh, Ogaki, JP;
Yasunari Takasaki, Gifu, JP;
Masaya Okumura, Gifu, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
In order to acquire a suitable fingerprint image by correcting an elongated fingerprint image, a line sensor acquires fingerprint image as a plurality of line-shaped images. A computation unit computes a similarity value by use of an evaluation function for evaluating the degree of similarity between the line-shaped images. The similarity value represents the degree of similarity between a first line-shaped image and a second line-shaped image which serve as a similarity evaluation target and are included in the plurality of the line-shaped image. A compression unit compresses the first line-shaped image and the second line-shaped image when the similarity value is equal to or larger than a predetermined threshold value to generate a new line-shaped image. A generation unit generates the entire fingerprint image by combining the new line-shaped image with the other line-shaped images.