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:
Jun. 18, 2024
Filed:
Dec. 14, 2018
Nec Corporation, Tokyo, JP;
Masato Tsukada, Tokyo, JP;
Chisato Funayama, Tokyo, JP;
Yuka Ogino, Tokyo, JP;
Hiroshi Imai, Tokyo, JP;
Keiichi Chono, Tokyo, JP;
Emi Kitagawa, Tokyo, JP;
Yasuhiko Yoshida, Tokyo, JP;
Hiroshi Yamada, Tokyo, JP;
Takashi Shibata, Tokyo, JP;
Shoji Yachida, Tokyo, JP;
Ryuichi Akashi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.