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AssigneeVid Scale, Inc.
InventorsXiaoyu Xiu, Yuwen He, Yan Ye
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Systems and methods related to video encoding and decoding using decoder-side intra mode derivation (DIMD) are described. In an exemplary method of coding samples in a block in a video, an intra coding mode is selected based on a plurality of reconstructed samples in a template region adjacent to the block, and the samples in the block are predicted with intra prediction using the selected intra coding mode. The intra coding mode may be selected by testing a plurality of candidate intra coding modes for cost (e.g. distortion) of predicting the template region from a set of reconstructed reference samples. The mode with the lowest cost is used for prediction. In exemplary embodiments, explicit signaling of the intra mode is not required.
A method of coding a video in a bitstream, wherein the video comprises a plurality of frames, each frame comprising blocks of samples, the method comprising, for at least a current block:
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A video encoder for encoding a video in a bitstream, wherein the video comprises a plurality of frames, each frame comprising blocks of samples, the method comprising, for at least a current block, the encoder being operative to perform functions comprising:
A video decoder for decoding a video from a bitstream, wherein the video comprises a plurality of frames, each frame comprising blocks of samples, the method comprising, for at least a current block, the decoder being operative to perform functions comprising:
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