Patent ID: 8526797
Filing Date: 2013-09-03
Classification: G11B,H04N

Abstract:
1. A moving image coding method for coding a video stream that includes a first moving image and a second moving image to be overlaid on the first moving image, the overlaying being performed by overlaying only an image area whose luminance level exceeds a threshold in the second moving image, on the first moving image, said moving image coding method comprising: determining a continuous playback section that is a group of partial sections and is subject to continuous playback, in the video stream; coding the first moving image and the second moving image in the partial sections which constitute the continuous playback section determined in said determining, under a constraint that prevents the threshold from being changed in the continuous playback section; generating management information including flag information which indicates that the threshold is fixed in the continuous playback section; and combining the first moving image and the second moving image coded in said coding, with the management information generated in said generating, and outputting the combination, wherein said generating includes generating, as the flag information, playback information corresponding to each of one or more playitems included in a playlist, the playlist is information that designates a playback sequence of the one or more playitems, as the continuous playback section, and each of the one or more playitems is information that designates at least a part of a clip to be played, as a different one of the partial sections.