Video coding device and video decoding device with a motion compensated interframe prediction

摘要

A video coding device using an adaptive motion-compensated interframe-prediction system, comprising: a predicting portion (332) for producing a plurality of predictive images of variable-size areas by applying different predicting methods to each of the variable-size areas in the process of the motion-compensated interframe prediction and outputting the produced predictive images; an area prediction deciding portion (333) for determining an adaptive area size and an adaptive prediction method according to a plurality of the predictive images received from the predicting portion (332) and outputting side-information including area-information, prediction-mode information, motion-vectors and so on; and a side-information coding portion (334) for encoding the side-information outputted from the area prediction deciding portion. Also provided is a video decoding device using an adaptive motion-compensated interframe-prediction system, comprising: a side-information decoding portion (335) for decoding coded side-information including area-information, prediction mode information and motion-vectors, and so on and outputting the decoded side-information; a predicting portion (336) for producing a plurality of predictive images of variable-size areas by applying different predicting methods to each of the variable-size areas in the process of the motion-compensated interframe prediction and outputting the produced predictive images; and an area-prediction-mode selecting portion (337) for producing an adaptive predictive image from a plurality of the predictive images received from the predicting portion (336) according to the information received from the side-information decoding portion (335) and outputting the produced predictive images.