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一种有效的航拍图像中直线提取算法
引用本文:董银文,苑秉成,王航宇,石钊铭.一种有效的航拍图像中直线提取算法[J].武汉大学学报(信息科学版),2012,37(2):160-164.
作者姓名:董银文  苑秉成  王航宇  石钊铭
作者单位:1. 海军工程大学电子工程学院,武汉市解放大道717号,430033
2. 海军工程大学兵器工程系,武汉市解放大道717号,430033
3. 海军工程大学科研部,武汉市解放大道717号,430033
基金项目:国防“十一五”装备预研基金资助项目,海军“十一五”重点装备预研基金资助项目,湖北省自然科学基金资助项目
摘    要:首先对航拍图像进行小尺度高斯滤波;然后进行边缘检测,得到边缘检测幅度图像;再在边缘检测幅度图像中进行启发式搜索连接,提取出符合直线模型的直线搜索轨迹;最后根据直线搜索轨迹的判别获取直线。实验结果表明,该算法可以在航拍图像中提取出真实的直线,是一种有效的直线提取算法。

关 键 词:航拍图像  直线提取  启发式搜索  边缘检测

An Effective Algorithm for Line Extraction in Aerial Image
DONG Yinwen,YUAN Bingcheng,WANG Hangyu,SHI Zhaoming.An Effective Algorithm for Line Extraction in Aerial Image[J].Geomatics and Information Science of Wuhan University,2012,37(2):160-164.
Authors:DONG Yinwen  YUAN Bingcheng  WANG Hangyu  SHI Zhaoming
Institution:1(1 College of Electronic Engineering,Naval University of Engineering,717 Jiefang Road,Wuhan 430033,China)(2 Department of Weaponry Engineering,Naval University of Engineering,717 Jiefang Road,Wuhan 430033,China)(3 Office of Research & Development,Naval University of Engineering,717 Jiefang Road,Wuhan 430033,China)
Abstract:To avoid the disadvantages of current algorithms,an effective line extraction algorithm is presented.Firstly,the aerial image is processed by means of small-scale Gaussian filtering.Then,by means of edge detection,an edge detection amplitude image is obtained;and heuristic search is applied in the edge detection amplitude image,so as to extract line search trajectories fitted the line model.Finally,the line from the search trajectories is selected.The experimental results show that our algorithm can extract the true line in the aerial image,and is an effective line extraction algorithm.
Keywords:aerial images  line extraction  heuristic search  edge detection
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