因此，要在无线信道上开展视频业务，必须在保证视频编码压缩效率的同时，提高视频编码的容错性能。

Therefore, to realize real time transmission of video traffic over wireless channels, the error resilience of video coding must be improved, without significant compromises in video coding efficiency.

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在保证视频编码性能的前提下，加快全局运动估计收敛于稳定值，实现快速全局运动估计的目标。

It could converge rapidly the global motion estimation and achieve the fast global motion estimation while maintaining the coding performance.

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