采用编码点和非编码点相结合的方法实现摄影测量中对应点匹配技术，讨论了标记点的中心亚像素定位方法、两类标记点的识别及编码标记点的解码方法。

The high accuracy center measuring method of marked points technique based on the fitting sub-pixel edge, and the methods of coded points designing and coded points auto-detecting were investigated.

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