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METHOD AND APPARATUS FOR LOW-COMPLEXITY BI-DIRECTIONAL INTRA PREDICATION IN VIDEO ENCODING AND DECODING
METHOD AND APPARATUS FOR LOW-COMPLEXITY BI-DIRECTIONAL INTRA PREDICATION IN VIDEO ENCODING AND DECODING
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机译:视频编码和解码中低复杂度双向内部预测的方法和装置
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摘要
At least one of the present embodiments generally relates to a method and an apparatus for video encoding and decoding, and more particularly, to a method and an apparatus for low-complexity bi-directional intra prediction. For example, a subset of a plurality of directional intra prediction modes is selected based on a shape of a current block of a picture being encoded or decoded. For a selected intra prediction mode in this subset, a sample value is bi-directionally intra predicted by using two predictors. The two predictors are substantially on a line based on a direction corresponding to the selected directional intra prediction mode. The bi-directional intra prediction may be only applied to large luma blocks, but not chroma blocks in order to reduce the computational complexity. When bi-directional intra prediction is used, the smoothing filtering may be omitted in intra prediction to further reduce the complexity.
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