| 摘要 |
The purpose of the invention is to enable, or not enable, motion compensation depending on whether it is profitable to do so, with profitability being expressed in terms of the costs in rate and in distortion. The method for decompressing an image portion comprises: a step (302) of determining at least one prediction of a said image portion, a step (307) of determining a distortion associated with each prediction, and a step (314) of deciding whether or not to encode the residual, based at least on the distortion value associated with each prediction.
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