| 摘要 |
PROBLEM TO BE SOLVED: To reduce a time and a calculation amount required for collation processing to a plurality of face images.SOLUTION: A face image collation part 120 executes collation processing of sequentially collating, for each of a plurality of target face images 201 included in input image data, a feature quantity of the target face image 201 with a feature amount of each face image of a plurality of persons so as to identify a person of the target face image 201 out of the plurality of persons. When in collation processing as to a first target face image among the plurality of target face images 201, a person of the first target face image is identified, the face image collation part 120 executes, in collation processing as to a second target face image, preferentially collation between the second target face image and a face image of an appearing person, who is another person whose face image has been included in image data identical to the image data in which the face image of the identified first target face image is included. |
