US 12,462,608 B2
Iris recognition apparatus, iris recognition method, computer program and recording medium
Keiichi Chono, Tokyo (JP); Yuka Ogino, Tokyo (JP); and Ryuichi Akashi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Oct. 11, 2023, as Appl. No. 18/484,592.
Application 18/484,592 is a continuation of application No. 17/620,797, granted, now 11,861,943, previously published as PCT/JP2019/025344, filed on Jun. 26, 2019.
Prior Publication US 2024/0037989 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 40/19 (2022.01); G06V 10/141 (2022.01); G06V 40/18 (2022.01)
CPC G06V 40/197 (2022.01) [G06V 10/141 (2022.01)] 9 Claims
OG exemplary drawing
 
1. An iris recognition apparatus comprising:
at least one memory configured to store instructions; and
at least one processor configured to execute the instructions to:
control an irradiator to irradiate light to a target person of an iris recognition from a first direction;
acquire a first image which imaged a first image range including a face of the target person irradiated with light from the first direction;
control the irradiator to irradiate near-infrared light to the target person in imaging a second image including an area, which includes an eye of the target person, and corresponding to a second imaging range, which is narrower than the first image range in a case where the target person wears sunglasses;
control the irradiator to irradiate visible light to the target person in imaging the second image in a case where the target person wears regular glasses;
control the irradiator to irradiate light to the target person from the first direction in imaging the second image in a case where a degree of superposition of a high-brightness area included in the first image and an iris area included in the first image is less than a predetermined degree, wherein the high-brightness area is an area of which a brightness is greater than a predetermined brightness, wherein the iris area is an area corresponding to an iris of the target person, wherein the predetermined degree is determined based on a value for determining whether or not the target person is a registered person in the iris recognition; and
control the irradiator to irradiate light to the target person from a second direction, which is different from the first direction, in imaging the second image in a case where the degree of superposition is greater than or equal to the predetermined degree.