| 摘要 |
PROBLEM TO BE SOLVED: To provide a prediction method in an image block encoding or decoding.SOLUTION: A prediction method includes the steps of: obtaining availability information about reference blocks of a current image block, and determining whether the reference blocks are available on the basis of the availability information; if at least one of the reference blocks is available, and at least one is unavailable, filling a pixel value in the available reference block to the unavailable reference block as a reference pixel value of the current image block; and predicting the current image block on the basis of the reference pixel value, where the reference blocks of the current image block include a left side block, an upper side block, and an upper left block of the current image block. |
