US 12,444,235 B2
Controlling illumination apparatus based on overlap state between iris area and reflection area
Ryuichi Akashi, Tokyo (JP); Kosuke Yoshimi, Tokyo (JP); Yuka Ogino, Tokyo (JP); and Ryo Yamakabe, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/776,328
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Aug. 31, 2021, PCT No. PCT/JP2021/032008
§ 371(c)(1), (2) Date May 12, 2022,
PCT Pub. No. WO2023/032051, PCT Pub. Date Mar. 9, 2023.
Prior Publication US 2024/0153311 A1, May 9, 2024
Int. Cl. G06V 40/18 (2022.01); G06F 3/01 (2006.01); G06T 7/20 (2017.01); G06V 10/141 (2022.01)
CPC G06V 40/197 (2022.01) [G06F 3/013 (2013.01); G06T 7/20 (2013.01); G06V 10/141 (2022.01); G06V 40/193 (2022.01); G06V 2201/07 (2022.01)] 16 Claims
OG exemplary drawing
 
1. An illumination control apparatus comprising:
at least one memory storing instructions; and
at least one processor configured to execute the instructions to:
detect an iris area and a reflection area in an eye image generated by imaging eyes of a target being illuminated with illumination light from an illumination apparatus, the iris area and the reflection area corresponding to an iris of the eyes and a reflection image of the illumination light respectively;
predict motion of the eyes;
determine, based on the motion predicted, a first lighting condition and a second lighting condition so that a position of the reflection area relative to the iris area in a first eye image differs from a position of the reflection area relative to the iris area in a second eye image, the first eye image being generated by imaging the eyes being illuminated with the illumination light based on the first lighting condition and the second eye image being generated by imaging the eyes being illuminated with the illumination light based on the second lighting condition; and
control the illumination apparatus based on an overlap state between the iris area and the reflection area so as to illuminate the eyes with the illumination light based on the second lighting condition different from the first lighting condition after illuminating the eyes with the illumination light based on the first lighting condition.