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METHOD AND APPARATUS FOR DECORDER SIDE PREDICTION BASED ON WEIGHTED DISTORTION
METHOD AND APPARATUS FOR DECORDER SIDE PREDICTION BASED ON WEIGHTED DISTORTION
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机译:基于加权失真的解码器侧预测方法和装置
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摘要
Decoders can use prediction based on weighted distortion to determine information used to make decisions regarding motion vectors, reference pixels, and coding modes, similar to a corresponding encoder operation. Samples in and around a current block and samples of reference pictures are weighted and a distortion metric generated to determine the decisions. Embodiments are described for prediction modes such as Cross-component linear model (CCLM), Local Illumination Compensation (LIC), and Frame Rate Up-Conversion (FRUC). Various embodiments describe derivation of weighting factors used in the decision making, comprising inference by a decoder, basing weighting factors on a quantization parameter, local activity of a block, and samples of temporally close reference pictures.
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