| 摘要 |
Starting from the image of a person that was shot at a certain time, images of the person that were shot in the past or future of the certain time are found. A number of frames of search-target images are grouped in the order of the years in which they were shot. An image that was shot at a certain time is specified as an initial search-source image. From within the group to which the specified search-source image belongs, a search-target image containing a face image that resembles a face image contained in the specified search-source image is found. By using the found search-target image as a new search-source image, an image containing a face image that resembles the face image contained in the new search-source image is found from among search-target images that belong to the group of the preceding (or following) year. Present or past images of the person are found while the search-source image that serves as an object the comparison for finding images is updated.
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