Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for intra prediction for non-square blocks in video compression
A method for video decoding includes determining, for a current block that is a non-square block, whether an angular intra prediction mode for the current block is a wide angle mode that is in a direction outside of a range of directions that spans a bottom left diagonal direction and top right diagonal direction of the current block. The method further includes, in response to determining that the angular intra prediction mode is the wide angle mode, determining whether a condition to apply an intra smoothing filter to blocks neighboring the current block is satisfied. The method further includes, in response to determining that the condition is satisfied, applying the intra smoothing filter to the blocks neighboring the current block. The method also includes performing intra prediction based on the filtered blocks to obtain a characteristic value for the current block.
Tencent America LLC
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Liang Xiang Xin Shan
Zhao Li Zhao Liu