| 摘要 |
In an instance in which, when encoded data for video is decoded, the frames constituting the video are divided into a plurality of regions and predictive decoding is performed for each of the regions, a provisional decoded image in which an image is provisionally decoded from a low-resolution prediction residual is generated, and the decoding value is renewed, whereby a final decoded image is generated. In addition, in an instance in which, when the frames constituting the video are divided into a plurality of regions and predictive encoding is performed for each of the regions, a high-resolution prediction residual is down-sampled and a low-resolution prediction residual is generated, a subsampling prediction residual is generated by a subsampling process in which only some of the pixels of the high-resolution prediction residual are sampled, and the result is used as the low-resolution prediction residual. |
