METHOD AND APPRATUS FOR ENCODING IMAGES USING MOTION PREDICTION BY MULTIPLE REFERENCE, AND METHOD AND APPARATUS FOR DECODING IMAGES USING MOTION PREDICTION BY MULTIPLE REFERENCE

摘要

A method and an apparatus for encoding images using motion prediction by multiple reference, and a method and an apparatus for decoding images using motion prediction by multiple reference are provided to encode image data including a current frame based on a motion prediction performing result, thereby improving prediction performance between screens. A candidate estimator set determiner determines one or more candidate estimator sets including one or more candidate estimators. A reference estimator determiner(270) determines a reference estimator based on an error rate of each prediction estimator. A motion prediction performer(280) performs motion prediction about the current frame by using a reference block and the current block corresponding to the reference estimator. An encoding unit encodes image data including the current frame based on the motion prediction performing result.