Patent ID: 8848985

Claim:
A face-image registration device that extracts, from a moving image which is inputted thereto, wherein the moving image comprises a sequence of images, a face image showing a face of a person and registers the face image in a dictionary, the face-image registration device comprising: representative-face-image extracting means for extracting, from the sequence of images, at least one face image which satisfies a predetermined representative condition, so as to obtain a representative face image, wherein the sequence of images with respect to the representative face image is an input of the representative-face-image extracting means of the face-image registration device; registration-face-image extracting means for extracting, from the sequence of images, at least one face image which shows the person shown in the representative face image but is not the representative face image and which satisfies a predetermined registration condition, so as to obtain a registration face image, wherein the sequence of images with respect to the registration face image is an input of the registration-face-image extracting means of the face-image registration device, and wherein the registration-face-image extracting means does not generate the registration face image from the representative face image, but extracts the registration face image directly from the sequence of images, independently of the representative face image; and face-image registration means for registering, in the dictionary, the registration face image in association with the representative face image, wherein the registration-face-image extracting means selects, from a plurality of predetermined registration conditions different from each other, the predetermined registration condition which a face image that has not been registered in the dictionary satisfies, and determines whether or not a face image searched from the sequence of images satisfies the predetermined registration condition thus selected, and wherein the face-image registration means automatically registers, in the dictionary, as the registration face image, the face image thus searched, in a case where the registration-face-image extracting means determines that the face image thus searched satisfies the predetermined registration condition thus selected.