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. 20, 2012
Filed:
Jun. 17, 2008
Yasushi Hamada, Tokyo, JP;
Yasushi Hamada, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
To provide a masquerade detection system which can detect a masquerade using a photograph, a picture or the like, without using an additional device other than an image picking-up device. A masquerade detection method includes an image conversion step in which an image conversion from one flat plane to the other flat plane is carried out from a first image of an examining object picked up from a first angle into a second image of an examining object picked up from a second angle different from the first angle to generate a converted image, and a masquerade judging step in which the converted image and the second image are entirely or partially compared with each other and, if a compared result satisfies a predetermined condition, an attempt to do a masquerade is judged.