| 摘要 |
A method for computing a prediction value, for a block X representative of image data, the method comprising: determining whether any of the following are outside of a boundary of a video object plane: a block A, horizontally adjacent to and left of the block X; a block B, vertically adjacent to and above the block A; and a block C, vertically adjacent to and above the block X; setting a DC coefficient for any of the block A, the block B and the block C that is outside the boundary of the video object plane; identifying a DC coefficient for any of the block A, the block B and the block C that is not outside the boundary of the video object plane; wherein the setting and identifying result in one DC coefficient for the block A, DC A , one DC coefficient for the block B, DC B , and one DC coefficient for the block C, DC C ; and computing, after the setting and the identifying, a prediction value for the block X, wherein the only DC coefficients that are used in the computing are the DC A , the DC B , and the DC C . |
