Patent ID: 7463788
Filing Date: 2008-12-09
Classification: G06T

Abstract:
1. A device for cutting out a moving image, comprising: sampling means for sampling a plurality of sequential frames from the moving image including a moving body; mask frame calculating means for calculating mask frames, which include mask regions for identifying positions of the moving body in the plurality of frames, corresponding to each of the plurality of frames; region cutout means for cutting out moving body regions corresponding to the moving body from all or part of the plurality of frames by masking all or part of the plurality of frames using the mask frames which correspond thereto; and composing means for obtaining a composite image of the plurality of frames by overwriting the moving body regions, which are cut out from all or part of the plurality of frames by the region cutout means, in chronological order at positions corresponding to the moving body region in one of the plurality of frames, wherein the mask frame calculating means comprises: first mask frame calculating means for calculating other mask frames, which includes the mask regions for identifying the positions of the moving body in other frames, corresponding to each of the other frames by calculating absolute values of difference values in corresponding pixels between a reference frame selected from the plurality of frames and the other frames and binarizing the absolute values based on a first threshold; and second mask frame calculating means for calculating a reference mask frame, which includes a mask region for identifying a position of the moving body in the reference frame, based on information on the plurality of other mask frames, and the region cutout means is a means for cutting out a moving body region corresponding to the moving body from the reference frame by masking the reference frame using the reference mask frame; and wherein the second mask frame calculating means is a means for calculating the reference mask frame by accumulating or weighting and accumulating corresponding pixels in a selection mask frame selected from the plurality of other mask frames and further binarizing the accumulated selection mask frame based on a second threshold.