公开(公告)号：US20150049812A1

公开(公告)日：2015-02-19

申请号：US13996001

申请日：2012-12-05

申请人： Eugeniy P. Ovsyannikov ,  Sergey E. Petrov ,  Boris D. Kudryashov

发明人： Eugeniy P. Ovsyannikov ,  Sergey E. Petrov ,  Boris D. Kudryashov

IPC分类号： H04N19/513 ,  H04L29/06

CPC分类号： H04N19/513 ,  H04L65/607 ,  H04N19/33 ,  H04N19/44 ,  H04N19/51 ,  H04N19/59 ,  H04N19/895

摘要： Methods and systems may provide for receiving a decoded enhancement layer of a video bitstream, wherein the decoded enhancement layer is associated with a previous layer of the video bitstream, and wherein the previous layer is undecoded due to a packet loss condition with respect to the video bitstream. Additionally, an intermediate motion vector of the previous layer may be estimated, and a target motion vector of the decoded enhancement layer may be estimated based on the intermediate motion vector. In one example, an upsample output gate is maintained in a closed state until the target motion vector has been estimated.

摘要翻译： 方法和系统可以提供用于接收视频比特流的解码增强层，其中所述解码的增强层与所述视频比特流的先前层相关联，并且其中由于相对于所述视频的分组丢失状况，所述先前层未解码 比特流。 此外，可以估计先前层的中间运动矢量，并且可以基于中间运动矢量来估计解码增强层的目标运动矢量。 在一个示例中，上采样输出门保持在关闭状态，直到目标运动矢量被估计为止。