| 高分辨率遥感影像桥梁特征提取方法研究 |
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| 引用本文： | 骆剑承,明冬萍,沈占锋,汪闽,盛昊. 高分辨率遥感影像桥梁特征提取方法研究[J]. 计算机应用研究, 2006, 23(10): 151-153 |
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| 作者姓名： | 骆剑承 明冬萍 沈占锋 汪闽 盛昊 |
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| 作者单位： | 中国科学院,遥感应用研究所,北京,100101;中国科学院,地理科学与资源研究所,北京,100101;南京师范大学,地理科学学院,江苏,南京,210097 |
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| 基金项目： | 国家自然科学基金;中国科学院知识创新工程项目 |
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| 摘 要： | 根据桥梁水体相连的知识,提出了一种基于知识的高分辨率遥感影像水上桥梁提取的实用方法,即在水体提取的基础上将图像细化,通过宽度限制检测桥梁主干线,并对其进行矢量化和特征表达来实现桥梁提取,通过实验证明了该方法的有效性。实验证明此方法不仅适合于水体与陆地灰度差别大,即单峰直方图的影像,还适合于水体与陆地灰度差别不大,即直方图多峰或峰顶不明显的影像。
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| 关 键 词： | 高分辨率 遥感影像 桥梁 特征提取 |
| 文章编号： | 1001-3695(2006)10-0151-03 |
| 收稿时间： | 2005-09-15 |
| 修稿时间： | 2005-11-10 |
Research on Bridge Extraction from High Resolution Remote Sensing Image |
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| LUO Jian cheng,MING Dong ping,SHEN Zhan feng,WANG Min,SHENG Hao. Research on Bridge Extraction from High Resolution Remote Sensing Image[J]. Application Research of Computers, 2006, 23(10): 151-153 |
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| Authors: | LUO Jian cheng MING Dong ping SHEN Zhan feng WANG Min SHENG Hao |
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| Abstract: | According to the fact that bridge over the water is connected with water in remote sensing image,this paper proposes a practicable knowledge-based bridge extraction method from high resolution remote sensing image.The steps are: water extraction based on GMRF-SVM classification;image thinning;main line of detection by width;vectorization;feature expression.In the end,this paper gives the test with IKONOS image.The experimental results show that the method presented is suitable for images both with single-peak histogram(the contrast between water and land is great) and with multi-peak histogram(the gray value of water is close to land). |
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| Keywords: | High Resolution Remote Sensing Image Bridge Feature Extraction |
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