| 摘要 |
<p>A method for reconstructing a video frame in a spatially scalable environment with a base-layer (BL) and an enhancement-layer (EL), wherein frames are intra-coded (I), predicted (P) or bi-directionally predicted (B), and wherein groups of frames (GOP) are defined containing per layer at least two low-pass frames (I,P), comprises reconstructing a missing or unusable frame by copying, interpolating, predicting or upsampling, wherein copying other frames or interpolating between other frames is used for reconstruction of a hierarchical B-frame, upsampling the motion information (EC4, EC10) and/or residual of a BL frame is used if the missing or unusable frame is an EL frame and its corresponding BL frame is available, and the corresponding BL frame is reconstructed and upsampled if the missing or unusable frame is an EL frame and both BL low-pass frames and not both EL low-pass frames of the current group are available.</p> |
