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A technique for encoding and decoding simple affine motion models using predictive offsets

机译:使用预测偏移来编码和解码简单仿射运动模型的技术

摘要

In a method for video decoding in a decoder, the prediction information of the block is decoded in the current picture from the coded video bit stream.The prediction information includes a plurality of offset indices of prediction offsets associated with the affine model in the interprediction mode.The plurality of offset indices include at least one of a distance offset index, an offset direction index, a delta scaling index, and a delta rotation index.Furthermore, the parameters of the affine model are determined based on a plurality of offset indices.Each of the plurality of offset indexes includes respective predetermined mapping tables, including index and corresponding offset values.The parameters of the affine model are used to convert between a block and a reference block in the reconstructed reference picture.At least one sample of the block is reconstructed according to the affine model.
机译:在解码器中的用于视频解码的方法中,块的预测信息从编码的视频比特流中的当前图片中解码。预测信息包括与在迭代模型中相关联的预测偏移的多个偏移索引 。多个偏移指数包括距离偏移索引,偏移方向索引,Δ缩放索引和Δ旋转索引中的至少一个.furtheratore,基于多个偏移指标确定仿射模型的参数。 多个偏移索引中的每一个包括相应的预定映射表,包括索引和相应的偏移值。仿射模型的参数用于在重建的参考图片中的块和参考块之间转换。块的最小一个样本 根据仿射模型重建。

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