Patent ID: 11971952
Assignee: NEC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A non-transitory computer readable storage medium storing a program executable by a computer to perform:
receiving, by a processor and from an operator, an operation for selecting a retrieval target person from among persons included in second images, the second images not including a face of the retrieval target person;
extracting target person feature information from the retrieval target person included in the second images;
extracting first feature information from a person included in a first image, the first image different than the second images, and the first feature information including a region other than a face of the person included in the first image;
performing, by the processor, a first collation process of collating the first feature information with the target person feature information to acquire a first collation result;
extracting second feature information from the person included in the first image in a case where the first collation result indicates a match, the second feature information being face feature information and being different from the first feature information and the target person feature information; and
storing the second feature information.