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SYSTEMS AND METHODS FOR GENERALIZED MULTI-HYPOTHESIS PREDICTION FOR VIDEO CODING
SYSTEMS AND METHODS FOR GENERALIZED MULTI-HYPOTHESIS PREDICTION FOR VIDEO CODING
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机译:用于视频编码的广义多假设预测的系统和方法
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摘要
Systems and methods are described for video coding using generalized bi-prediction. In an exemplary embodiment, to code a current block of a video in a bitstream, a first reference block is selected from a first reference picture and a second reference block is selected from a second reference picture. Each reference block is associated with a weight, where the weight may be an arbitrary weight ranging, e.g., between 0 and 1. The current block is predicted using a weighted sum of the reference blocks. The weights may be selected from among a plurality of candidate weights. Candidate weights may be signaled in the bitstream or may be derived implicitly based on a template. Candidate weights may be pruned to avoid out-of-range or substantially duplicate candidate weights. Generalized bi-prediction may additionally be used in frame rate up conversion.
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