Patent ID: 8737726
Filing Date: 2014-05-27
Classification: G06K

Abstract:
1. An image data processing device that calculates image feature information for classifying images, comprising: a face specification unit configured to specify a face region included in an image; an image feature calculation unit configured to calculate image feature information for the image from an image feature calculated based on at least some pixels in the image; and an image group feature calculation unit configured to calculate image group feature information for classifying an image group based on the image feature information for each of two or more images belonging to the image group, wherein the face specification unit is further configured to calculate face area information indicating an area ratio of the face region to the entire image, and when the area ratio indicated by the face area information for a first image is smaller than the area ratio indicated by the face area information for a second image, the image group feature calculation unit calculates the image group feature information such that the image feature information for the first image is reflected in the image group feature information more than the image feature information for the second image.