Interframe prediction is key to video compression and can effectively eliminate the time redundancy of video coding, reduce coding rate and enhance coding efficiency.

帧间预测是视频压缩的关键技术之一，能有效消除视频编码中的时间冗余，降低编码码率，提高编码效率。

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This paper presents the mathematical model and coding principle of cyclic redundancy check, and show the software implementation.

论述了循环冗余校验的数学模型以及编码原理，并给出了软件的实现方法。

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It can improve the efficiency of process design and decrease data redundancy using mould and coding technology.

使用模版和编码技术，提高了工艺设计效率，减少了数据冗余。

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