This system detected motion target using difference image method through threshold image segmentation, then automatically tracked target by using centroid tracking algorithm.

该系统运用差分图像法，通过阈值图像分割来检测运动目标，并采用形心跟踪算法来自动跟踪目标。

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Finally, the output of this algorithm is the optimal threshold. Using this threshold to partition off the pixels, image segmentation is implemented.

最后，通过寻优搜索得到算法的输出值即为最优阈值，以此阈值划分像素，实现图像分割。

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By using threshold segmentation, edge recognition, pixel labeling and center of gravity method, the accurate sites of every model can be acquired from the image.

综合运用阈值分割、边缘识别和像素标记法等图像识别技术，通过图像得到每个模型的相关定位信息。

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