通过选择适当的结构元素进行系列形态组合运算，自适应确定阈值，提取目标；

Serial morphology operations by choosing the proper structure element to confirm threshold value and extract the target are carried out.

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实验证明了相干比阈值的选择与图像的类型和噪声水平没有关系，因而本文所提出的图像去噪方法是自适应的。

Experimental results prove that the select of coherent ratio threshold is independent of image types or noise level. So the way of denoising presented here is adaptive.

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根据运动矢量场自适应选择搜索起始点和不同的搜索策略进行搜索，同时设定阈值对静止块直接中止搜索。

Then the initial search point and 2 search strategies were adaptively chosen according to the motion vector field, and an threshold was also selected to detect stationary blocks.

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