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METHODS AND APPARATUSES FOR PREDICTION REFINEMENT WITH OPTICAL FLOW IN REFERENCE PICTURE RESAMPLING
METHODS AND APPARATUSES FOR PREDICTION REFINEMENT WITH OPTICAL FLOW IN REFERENCE PICTURE RESAMPLING
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机译:用于预测细化的方法和装置,在参考图片重采样中与光学流程进行预测
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摘要
The disclosed embodiments provide methods and apparatuses for reference picture resampling in video coding. A disclosed method includes: in response to receiving a sample block in a reference picture, mapping a boundary sample of the sample block to a mapped coordinate outside the sample block; determining, in the reference picture, a reference sample including the mapped coordinate; determining a gradient based on the reference sample; and refining, based on the gradient, the sample block for prediction.
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