US 12,236,702 B2
Information processing apparatus, information processing method, and non-transitory computer-readable storage medium
Nobuaki Kawase, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Jul. 24, 2023, as Appl. No. 18/225,616.
Application 18/225,616 is a continuation of application No. 17/298,101, granted, now 11,847,848, previously published as PCT/JP2018/045054, filed on Dec. 7, 2018.
Prior Publication US 2023/0368563 A1, Nov. 16, 2023
Int. Cl. G06V 40/10 (2022.01); G06V 10/25 (2022.01); G06V 20/52 (2022.01); G06V 40/16 (2022.01)
CPC G06V 40/10 (2022.01) [G06V 10/25 (2022.01); G06V 20/52 (2022.01); G06V 20/53 (2022.01); G06V 40/171 (2022.01); G06V 40/172 (2022.01)] 14 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
at least one memory storing instructions; and
at least one processor configured to execute the instructions to:
perform a first collation process of collating first feature information extracted from a person included in a first image with first registered feature information stored in a first storage unit, to acquire a first collation result;
in a case where the first feature information is unable to be extracted from the person or in a case where the first collation result indicates a mismatch, store second feature information extracted from the person as second registered feature information in a second storage unit, in association with time information;
perform a second collation process of collating second feature information extracted from a person included in a second image with the second registered feature information stored in the second storage unit, to acquire a second collation result;
determine, from the second image, a person corresponding to the second registered feature information;
in case where the second registered feature information remaining at a reference timing in the second storage unit meets a predetermined condition, output an alert;
perform a third collation process of collating third feature information extracted from the person determined from the second image with the first registered feature information stored in the first storage unit, to acquire a third collation result; and
in a case where the third feature information is unable to be extracted from the determined person from the second image or the third collation result indicates a mismatch even though a reference time or more has elapsed from a time point indicated by the time information, output information regarding the second feature information, wherein
the first image is captured by a first camera among a plurality of cameras provided along a path, and the second image is captured by a second camera located after the first camera in a direction along the path.