Information processing apparatus, information processing method, and program

1. An information processing apparatus comprising:

at least one memory configured to store 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 feature information indicating a feature of a retrieval target person to acquire a first collation result;

extract second feature information from the person included in the first image in a case where the first collation result indicates a match; and

store, in a first storage device, the second feature information extracted from the person included in the first image,

wherein the first feature information of the retrieval target person is generated by using a second image which is different from the first image, and a face of the retrieval target person is not captured in the second image.

2. The information processing apparatus according to claim 1 ,

wherein the at least one processor is configured to execute the instructions to further:

perform a second collation process of collating the second feature information extracted from the person included in the first image with second feature information stored in a second storage device in association with identification information of a specific person to acquire a second collation result; and

output the identification information stored in the second storage device in a case where the second collation result indicates a match.

3. The information processing apparatus according to claim 1 ,

wherein the at least one processor configured to execute the instructions to:

extract a plurality of pieces of the first feature information from person regions of persons included in a plurality of the second images which are different from each other;

store the plurality of pieces of the first feature information in a third storage device in association with each other as information regarding an identical person; and

perform the first collation process by using the plurality of pieces of the first feature information stored in the third storage device.

4. The information processing apparatus according to claim 1 ,

wherein the second image is generated by camera which is different from a camera generating the first image.

5. The information processing apparatus according to claim 1 ,

wherein at least one of a collation process with respect to a third image with the first feature information and a collation process with the second feature information is performed.

6. The information processing apparatus according to claim 1 ,

wherein a region corresponding to at least the first feature information in the first image is stored in the first storage device in association with the second feature information.

7. The information processing apparatus according to claim 1 ,

wherein the second feature information is stored in association with an imaging condition of the first image.

8. The information processing apparatus according to claim 1 ,

wherein the second feature information is feature information of a face of a person, and the first feature information is feature information including a region other than the face of the person.

9. An information processing method comprising:

performing, by a processor, a first collation process of collating first feature information extracted from a person included in a first image with first feature information indicating a feature of a retrieval target person to acquire a first collation result;

extracting, by the processor, second feature information from the person included in the first image in a case where the first collation result indicates a match; and

storing, by the processor and in a first storage device, the second feature information extracted from the person included in the first image,

wherein the first feature information of the retrieval target person is generated by using a second image which is different from the first image, and a face of the retrieval target person is not captured in the second image.

10. A non-transitory computer readable storage medium storing a program executable by a computer to perform:

performing a first collation process of collating first feature information extracted from a person included in a first image with first feature information indicating a feature of a retrieval target person 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; and

storing, in a first storage device, the second feature information extracted from the person included in the first image,

wherein the first feature information of the retrieval target person is generated by using a second image which is different from the first image, and a face of the retrieval target person is not captured in the second image.