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:

collate first feature information extracted from a person included in a first image with first registered feature information stored in a first storage unit, the first feature information being face feature information of the person included in the first image, and the first registered feature information being face feature information of persons who are authentication targets;

in a case where the first feature information is unable to be extracted from the person included in the first image or the collation result indicates a mismatch, store second feature information extracted from the person included in the first image, in a second storage unit as second registered feature information, the second feature information being feature information including a region other than a face of the person; and

collate second feature information extracted from a person included in a second image with the second registered feature information stored in the second storage unit, and specify the person corresponding to the second registered feature information in the second image.

2. The information processing apparatus according to claim 1 ,

wherein the at least one processor is further configured to execute the instructions to collate the first feature information extracted from the person specified in the second image with the first registered feature information stored in the first storage unit.

3. The information processing apparatus according to claim 1 , wherein the at least one processor is further configured to execute the instructions to repeatedly perform a process of specifying a person corresponding to the second registered feature information in the second image and a process of collating the first feature information extracted from the specified person in the second image with the first registered feature information until the collation result of the process of collating indicates a match.

4. The information processing apparatus according to claim 1 , wherein the at least one processor is further configured to execute the instructions to:

in a case where the collation result between the first feature information extracted from the person specified in the second image and the first registered feature information stored in the first storage unit indicates a match, delete the second registered feature information of the person from the second storage unit.

5. The information processing apparatus according to claim 1 ,

wherein the second image is captured by a camera which is different from a camera capturing the first image.

6. The information processing apparatus according to claim 1 ,

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.

7. The information processing apparatus according to claim 6 , wherein the at least one processor is further configured to execute the instructions to:

in a case where a collation result with the first registered feature information indicates a mismatch with respect to the person specified in a process of collating in the second image generated by the second camera provided last or at a predetermined position in the direction along the path among a plurality of the second cameras, output information regarding the second feature information extracted from the person.

8. The information processing apparatus according to claim 1 ,

wherein the first image is captured at a first timing, and the second image is captured after the first timing.

9. The information processing apparatus according to claim 1 ,

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

store information indicating the collation result between the first feature information extracted from the person included in the first image and the first registered feature information in the second storage unit in association with the second registered feature information; and

in a case where the information indicating the collation result indicates a mismatch, collate the first feature information extracted from the person specified in the second image with the first registered feature information stored in the first storage unit.

10. The information processing apparatus according to claim 1 ,

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

store information indicating that the first feature information is unable to be extracted from the person included in the first image, in the second storage unit in association with the second registered feature information; and

in a case where the information indicates that the first feature information is unable to be extracted from the person included in the first image, the collate the first feature information extracted from the person specified in the second image with the first registered feature information stored in the first storage unit.

11. The information processing apparatus according to claim 1 ,

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

store the second feature information in the second storage unit along with time information; and

in a case where the first feature information is unable to be extracted from the person specified in the second image or the collation result with the first feature information extracted from the person specified in the second image indicates a mismatch even though a reference time or more elapses from a time point indicated by the time information, output information regarding the second feature information.

12. The information processing apparatus according to claim 1 ,

wherein, the at least one processor is further configured to execute the instructions to, in a case where matches of a predetermined number or more occur in a collation process with the first registered feature information or the second registered feature information, regard that the collation result indicates a match.

13. The information processing apparatus according to claim 1 , wherein the at least one processor is further configured to execute the instructions to:

output information regarding the second registered feature information which is stored in the second storage unit at a reference timing.

14. An information processing method executed by an information processing apparatus, the method comprising:

collating first feature information extracted from a person included in a first image with first registered feature information stored in a first storage unit, the first feature information being face feature information of the person included in the first image, and the first registered feature information being face feature information of persons who are authentication targets;

in a case where the first feature information is unable to be extracted from the person included in the first image or a collation result indicates a mismatch, storing second feature information extracted from the person included in the first image in a second storage unit as second registered feature information, the second feature information being feature information including a region other than a face of the person; and

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, and specifying the person corresponding to the second registered feature information in the second image.

15. The information processing method executed by an information processing apparatus according to claim 14 , the method comprising:

collating the first feature information extracted from the person specified in the second image with the first registered feature information stored in the first storage unit.

16. The information processing method executed by an information processing apparatus according to claim 14 , the method comprising:

repeatedly performing a process of specifying a person corresponding to the second registered feature information in the second image and a process of collating the first feature information extracted from the specified person in the second image with the first registered feature information until the collation result indicates a match.

17. The information processing method executed by an information processing apparatus according to claim 14 , the method further comprising:

in a case where a collation result between the first feature information extracted from the person specified in the second image and the first registered feature information stored in the first storage unit indicates a match, deleting the second registered feature information of the person from the second storage unit.

18. The information processing method according to claim 14 ,

wherein the second image is captured by a camera which is different from a camera capturing the first image.

19. A non-transitory computer readable storage medium storing a program causing a computer to execute:

a procedure 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, the first feature information being face feature information of the person included in the first image, and the first registered feature information being face feature information of persons who are authentication targets;

a procedure of storing, in a case where the first feature information is unable to be extracted from the person included in the first image or the collation result in the collation procedure indicates a mismatch, second feature information extracted from the person including in the first image, in a second storage unit as second registered feature information, the second feature information being feature information including a region other than a face of the person; and

a procedure 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, and thus specifying the person corresponding to the second registered feature information in the second image.