| CPC G06V 40/193 (2022.01) [G06V 10/26 (2022.01); G06V 10/60 (2022.01); H04N 23/56 (2023.01)] | 20 Claims |
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1. An image processing system comprising:
at least one memory storing instructions; and
at least one processor configured to execute the instructions to:
set a plurality of first evaluation target regions within a first image in which a target person is captured;
calculate a first evaluation value for each first evaluation target region, indicating a likelihood that the each first evaluation target region includes an iris of an eye of the target person;
select, as a candidate region and from among the plurality of first evaluation target regions, a first evaluation region for which the first evaluation value is greater than a first threshold value corresponding to the selected first evaluation region including the iris of the eye of the target person;
calculate a second evaluation value for the candidate region, indicating a likelihood that the iris of the eye of the target person is in a center part of the candidate region, based on a reflection pattern formed in the candidate region in response to application of light having a predetermined irradiation pattern to the target person;
identify, as an eye region represents the eye of the target person, in response to the second evaluation value being greater than a second threshold value corresponding to the identified eye region being sufficient for biometric iris authentication of the target person and such that biometric iris authentication accuracy is improved;
extract a feature value of the identified eye region; and
perform biometric iris authentication of the target person using the extracted feature value.
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