| 基于自适应中值滤波和改进Hough变换的直线提取 |
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| 引用本文： | 刘春阁.基于自适应中值滤波和改进Hough变换的直线提取[J].测绘科学,2011,36(6):267-269. |
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| 作者姓名： | 刘春阁 |
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| 作者单位： | 四川建筑职业技术学院交通与市政工程系,四川德阳,618000 |
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| 基金项目： | 国家自然科学基金项目(40901222) |
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| 摘 要： | 直线是遥感图像的重要纹理特征,直线提取是直线匹配、遥感影像数据的三维重建、图像配准等的前提基础。本文针对传统Hough变换存在的问题以及MatLab软件工具箱中现有滤波算法的不足,提出对Hough变换进行改进,设计自适应中值滤波,并结合Canny边缘检测算子实现了直线的准确提取,使得直线提取算法具有较强的抗噪性能,不误检直线。
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| 关 键 词： | Hough变换 自适应中值滤波 直线提取 边缘检测 |
Line extraction based on adaptive median filter and improved Hough transform |
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| LIU Chun-ge.Line extraction based on adaptive median filter and improved Hough transform[J].Science of Surveying and Mapping,2011,36(6):267-269. |
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| Authors: | LIU Chun-ge |
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| Institution: | LIU Chun-ge(Department of Traffic & Municipal Engineering,Sichuan College of Architectural Technology,Sichuan Deyang 618000,China) |
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| Abstract: | The straight line is important texture feature of remote sensing image,and line extraction is a prerequisite foundation for line matching,three-dimensional reconstruction of remote sensing data,image registration and so on.In the paper,to achieve accurate line extraction in combination with Canny edge detection operator,improved Hough transform was improved and adaptive median filter was designed based on the problems of traditional Hough transform as well as the deficiency of existing filter algorithm in MatLab toolbox,making line extraction algorithm strong anti-noise performance without false line detection. |
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| Keywords: | Hough transform adaptive median filtering line extraction edge detection |
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