Patent ID: 8712168

Claim:
An image classification device comprising: a face clustering unit configured to, for each of a plurality of images, extract features of each face included in the image and to classify each face into a face group containing one or more faces determined to be of a same person; an image group feature calculation unit configured to calculate image group feature information, indicating features of an image group composed of a plurality of images, based on the face group into which the face clustering unit classifies at least one face among any faces included in images of the image group; an image group classification unit configured to classify an image group into at least one of a plurality of different classifications based on the image group feature information for the image group; and a person group sorting unit configured to sort each face group into one of one or more person groups indicating a predetermined human relationship, wherein the image group feature information includes person group information indicating the one person group into which each face group is sorted, and the image group classification unit classifies the image group based on the person group information included in the image group feature information.