Patent ID: 8704954

Claim:
A signal output device, comprising: a signal output unit to output a video signal based on input image data; a storage unit to store the image data; a detection unit to detect whether or not the number of frames included in one set of image data stored in the storage unit satisfies a predetermined number, wherein the one set of image data is a group of pictures (GOP) separated by IDR; and a data creating unit to divide, when the number of the frames included in the one set of image data does not satisfy the predetermined number, the frames included in the one set of image data into a plurality of groups, to divide each of the frames into a plurality of local regions, to decide the local region exhibiting the largest movement amount among the plurality of local regions for each of the groups, to detect 2 frames exhibiting the largest movement amount of the decided local region for each of the groups, and to add a new frame between the 2 frames within each of the groups, and to input, to the signal output unit, the one set of image data to which the new frame has been added.