文章首先简要介绍了图像中线段提取的两种算法，并对这两种算法进行了比较。
This paper brief introduces the methods of line extract from image, and compares the two methods.
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.
在此基础上，文章提出了一种新的改进的线段提取算法，将全局性和局部性良好的结合起来，并且给出了算法描述、实现以及试验结果。
On the Basis of comparison, we advance a new improved line extract arithmetic, which makes localness integrates with whole-ness, and given the algorithm and outcomes.
操作员通过人机界面选择房屋的种类并输入初始位置 ，然后经过边缘检测、直线段提取和据此房屋几何模型的线段自动编组等处理得到各房屋角点的初始位置。
In the semiautomatic extraction system, the building model is defined by selected roof type input through human_machine interface and input points of rough position of the building by operator.
在SP模型的框架下，从激光扫描点中提取线段特征用于描述室内环境。
In the framework of SP model, line segment features are extracted from laser scanning points to describe the indoor environment.
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.
基于直线段集合图像给定区域内直线线段的结构文法及其所含几何基元数目和几何基元种类将人造目标从自然背景中提取出来。
Structure grammar based on local area of collection of line segmentation and geometric element and number of classes of geometric element could extract manmade object from natural background.
在研究了现有图形提取算法的基础上，本文针对手绘图形绘制不规则的特点，提出了一种新的图形识别算法—基于直线段跟踪的手绘图元识别算法。
After studying the existing graphics extraction algorithm, a new graphics recognition algorithm-an off-line recognition method for freehand graphics based on line segment tracing is proposed.
在主动式视觉传感器的焊缝跟踪系统中，作者提出了新的接缝图象处理和特征值提取的算法，详述了直线段的调整、线段拟合算法以及接缝特征值的获取。
In the vision system of the seam tracking, this paper puts forward new image process and seam identifying arithmetic, linear adjustment and fit arithmetic in detail.
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.
该文提出的矩形目标重构方法主要分两步进行：首先从矩形目标边缘图像的二值图中提取出所有直线段，并将直线段参数化；
The reconstruction method falls into two steps:firstly, extracting all straight lines in the binary image of the rectangular objects" contour, and then parameterizing the extracted lines;"
该文提出的矩形目标重构方法主要分两步进行：首先从矩形目标边缘图像的二值图中提取出所有直线段，并将直线段参数化；
The reconstruction method falls into two steps:firstly, extracting all straight lines in the binary image of the rectangular objects" contour, and then parameterizing the extracted lines;"
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