特征点的提取和跟踪是基于图像的目标跟踪技术研究中的一项重要内容，对目标识别、机动检测等有着重要意义。
Feature point extraction and tracking method is an important contents to studying imaging-based target tracking, and avails to the research on target identification, maneuver detection and so on.
但是这种基于图像灰度均值分割的形心跟踪算法对于小目标图像都会跟踪失败。
However, the centroid tracking algorithm based on the image gray-mean segmentation fails when tracking small target images.
本文最后还研究了一种基于图像质心位置测量的目标跟踪方法。
At last one target tracking method on the basis of target centroid measurement is studied.
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