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以ＭＰＥＧ－２的语法规范作基础，从控制错误发生和控制错误传播的角度，简述了ＭＥＰＧ－２的分级工具和视频码流层结构，比较详细地介绍了Ｉ帧、Ｐ帧和Ｂ帧的错误掩盖技术，此外，还推荐了一些错误掩盖方法。
Based on the grammar specification of MPEG-2, the hierarchical tools of MEPG-2 and video stream layer are briefly described from the aspects of control error and control error propagation. I frame, P frame and B frame are introduced in detail The error concealment techniques, in addition, also recommended a number of error concealment methods.