US 11,989,975 B2
Iris authentication device, iris authentication method, and recording medium
Takashi Shibata, Tokyo (JP); Shoji Yachida, Tokyo (JP); Chisato Funayama, Tokyo (JP); Masato Tsukada, Tokyo (JP); Yuka Ogino, Tokyo (JP); Keiichi Chono, Tokyo (JP); Emi Kitagawa, Tokyo (JP); Yasuhiko Yoshida, Tokyo (JP); and Yusuke Mori, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Jul. 3, 2023, as Appl. No. 18/217,851.
Application 18/217,851 is a continuation of application No. 17/684,802, filed on Mar. 2, 2022, granted, now 11,756,336.
Application 17/684,802 is a continuation of application No. 17/283,050, granted, now 11,348,370, issued on May 31, 2022, previously published as PCT/JP2018/038396, filed on Oct. 16, 2018.
Prior Publication US 2023/0351809 A1, Nov. 2, 2023
Int. Cl. G06V 40/18 (2022.01); G06V 10/22 (2022.01); G06V 10/60 (2022.01); G06V 10/764 (2022.01); G06V 40/10 (2022.01); G06V 40/16 (2022.01); G06V 40/19 (2022.01); G06V 40/20 (2022.01); G06V 40/70 (2022.01)
CPC G06V 40/197 (2022.01) [G06V 10/22 (2022.01); G06V 10/60 (2022.01); G06V 10/764 (2022.01); G06V 40/103 (2022.01); G06V 40/172 (2022.01); G06V 40/19 (2022.01); G06V 40/25 (2022.01); G06V 40/70 (2022.01)] 9 Claims
OG exemplary drawing
 
1. An authentication device comprising:
a memory configured to store instructions; and
at least one processor configured to execute the instructions to perform:
acquiring a first image by capturing an authentication target moving in a predetermined direction;
acquiring a second image from a plurality of images by capturing a left eye or a right eye of the authentication target;
determining whether the eye included in the second image is of the left eye or the right eye of the authentication target using the first image;
calculating a verification score by comparing characteristic information on an iris of the eye in the second image with one or more sets of characteristic information about irises of eyes in a plurality of registrants stored in a storage, the plurality of registrants being objects to be authenticated;
authenticating the authentication target using the verification score; and
outputting an authentication result, wherein the at least one processor is further configured to execute the instructions to perform:
learning which region in the first image includes pixels indicating the left eye and the right eye of the authentication target on the basis of data of the authentication result, and learn characteristics of light included in the first image and the second image on the basis of data of the authentication result; and
determining whether the eye included in the second image is of the left eye or the right eye of the authentication target using the learning result in a specific period.