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文章在简要叙述视频编码的基本压缩算法和网络对视频信息传输的特性后，分析了视频图象在网络上传输产生的问题及利用分层技术的解决方法，特别是针对运动矢量的数据丢失给出了利用分层编码减少对图象质量影响的方法。
After a brief description of the basic compression algorithms of video coding and the characteristics of network transmission of video information, the article analyzes the problem of video image transmission on the network and the solution to the problem using the layering technology, especially for the data loss of motion vectors The use of hierarchical coding to reduce the impact on the quality of the image.