实验结果显示，该算法优于单一的基于线段分析的方法，对遥感图像中建筑物的提取具有较好的效果。

Experimental results showed that the improved algorithm is more effective than the line analysis based method and has good results of building extraction from sensing image.

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本文以提取遥感图像中的直线特征为基础，深入研究了机场和桥梁两种直线性目标的识别方法及有关的直线段匹配算法。

This dissertation studies on the recognition methods and related line matching algorithm for airport and bridge targets based on the linear features extracted from remote sensing image.

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在虹膜归一化中，改进了传统的虹膜归一化方法，研究基于线段提取的虹膜归一化方法把环形的虹膜区域归一化映射为一个矩形。

Then we improve the traditional iris normalization algorithm and work out the iris normalization algorithm based-on line picked-up to normalize the annular region of iris into a rectangle.

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