The work including:(1) This paper introduces a new airport detection approach based on many regular straight line features in airports.

从机场检测着手，针对实际情况，采用了一种新的基于直线特征的机场检测方法。

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Then straight line extracting is converted into the procedure of analyzing the features in scale space.

这样直线抽取过程就转化为尺度空间中的特征分析过程。

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