| 无源毫米波海岸线图像的边缘提取方法研究 |
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| 引用本文： | 张光锋,李兴国,娄国伟. 无源毫米波海岸线图像的边缘提取方法研究[J]. 计算机工程与应用, 2008, 44(32): 200-202. DOI: 10.3778/j.issn.1002-8331.2008.32.060 |
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| 作者姓名： | 张光锋 李兴国 娄国伟 |
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| 作者单位： | 南京理工大学,电子工程与光电技术学院,南京,210094;南京理工大学,电子工程与光电技术学院,南京,210094;南京理工大学,电子工程与光电技术学院,南京,210094 |
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| 摘 要： | 分析了无源毫米波辐射图像轮廓特征，讨论了基于二阶微分算子与形态学的图像边缘检测的方法，根据海岸线的无源毫米波辐射特性和成像特点对图像区域标识，然后利用自适应阈值操作实现多目标区域的细分，最后采用形态学边缘检测海岸线特征方法。实验结果表明：对比传统的微分算子处理结果，形态学算法具有较高的检测精度，适用于提取无源毫米波辐射图像边缘。
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| 关 键 词： | 海岸线 辐射图像 天线温度 边缘提取 形态学 |
| 收稿时间： | 2008-05-15 |
| 修稿时间： | 2008-7-25 |
Research on coastal line edge extraction method from passive radiometric image |
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| ZHANG Guang-feng,LI Xing-guo,LOU Guo-wei. Research on coastal line edge extraction method from passive radiometric image[J]. Computer Engineering and Applications, 2008, 44(32): 200-202. DOI: 10.3778/j.issn.1002-8331.2008.32.060 |
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| Authors: | ZHANG Guang-feng LI Xing-guo LOU Guo-wei |
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| Affiliation: | School of Electronic Engineering and Optoelectronic Technology，Nanjing University of Science and Technology，Nanjing 210094，China |
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| Abstract: | On basis of analyzing radiometric image outline characteristic and introducing the image segmentation approaches,this paper presents a coastal line extraction approach from 3 mm radiometric image.First it marks the typical objects according to the millimeter-wave radiation characteristic of different objects.Then it realizes image segmentation by the self-adapting threshold.Fi- nally it adopts a sub-zone and multiple structural element morphological processing method.The result shows the method has higher precision and comprehensive applicability by contrasting to LOG processing result. |
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| Keywords: | coastal line radiometric image antenna temperature edge extraction morphological |
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