| 摘要 |
A video decoder (300), encoder (500), and corresponding methods for processing video signal data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder (300) includes a reference picture weighting factor unit (380) for determining a weighting factor corresponding to the particular reference picture index; an encoder (500) includes a reference picture weighting factor assignor (572) for assigning a weighting factor corresponding to the particular reference picture index; and a method for decoding includes receiving a reference picture index with the data that corresponds to the image block, determining a weighting factor for each received reference picture index, retrieving a reference picture for each index, motion compensating the retrieved reference picture, and multiplying the motion compensated reference picture by the corresponding weighting factor to form a weighted motion compensated reference picture. |
