| 摘要 |
PROBLEM TO BE SOLVED: To apply motion estimation (ME) based on reconstructed reference pictures in a bi-predictive frame (B frame) or in a predicted frame (P frame) at a video decoder. SOLUTION: For a P frame, projective ME may be performed to obtain a motion vector (MV) for a current input block. In a B frame, both projective ME and mirror ME may be performed to obtain an MV for the current input block. A metric is used to determine a metric for each pair of MV0 and MV1 that is found in a search path where the metric is based on a combination of first, second and third metrics. The first metric is based on temporal frame correlation, the second metric is based on spatial neighbors of the reference block, and the third metric is based on the spatial neighbors of the current block. COPYRIGHT: (C)2011,JPO&INPIT |
