Those regions of interest are quickly segmented first and then a modified temporal differencing method is applied to detecting the moving objects.

该方法先在静态图像中分割出感兴趣区域，继而仅在感兴趣区域中应用变形的时间差分法来检测运动目标。

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First, the original symmetrical differencing is improved. Then, background is reconstructed based on the symmetrical differencing results.

首先对对称差分算法进行了改进，然后基于对称差分结果进行背景重构。

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First, the original symmetrical differencing is improved. Then, background is reconstructed based on the symmetrical differencing results.

首先对对称差分算法进行了改进，然后基于对称差分结果进行背景重构。

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