The moving target detection method based on the three frame difference and background difference method was proposed, which is simply and fast to realize.

提出了利用三帧差分法和背景差分法对运动目标进行检测的方法，该运动检测的方法实现比较简单、速度快。

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The result shows this algorithm is better than frame difference method, background difference method and road mark method.

结果显示该算法明显优于帧差法、背景差法、路面标记法。

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After divided, the foreground and background regions which have biggish gray difference will belong to different regions, therefore the method can solve the problem mentioned before.

本文的方法以图像分割之后的区域为匹配基元，灰度相差较大的前景和背景区域分割之后将归属于不同区域，所以能较好的解决该问题。

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