| 摘要 |
Aspects of the present invention relate to systems and methods for intra prediction. According to a first aspect of the present invention, a pixel value, in a first block of a macroblock, may be predicted according to a first-direction intra-prediction mode when a flag has a first value and may be predicted according to a second-direction intra-prediction mode when the flag has a second value, wherein the first-direction intra-prediction mode and the second-direction intra-prediction mode are associated with opposite prediction directions. According to a second aspect of the present invention, a pixel value, in a first block of a macroblock, may be predicted according to a first-direction intra-prediction mode when a flag has a first value and, when the flag has a second value, the pixel value may be predicted based on a weighted average of a first value predicted according to the first-direction intra-prediction mode and a second value predicted according to a second-direction intra-prediction mode, wherein the first-direction intra-prediction mode and the second-direction intra-prediction mode are associated with opposite prediction directions.
|
