Research on coastal line edge extraction method from passive radiometric image

doi:10.3778/j.issn.1002-8331.2008.32.060

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (32): 200-202.DOI: 10.3778/j.issn.1002-8331.2008.32.060

• 工程与应用 • Previous Articles Next Articles

Research on coastal line edge extraction method from passive radiometric image

ZHANG Guang-feng,LI Xing-guo,LOU Guo-wei

School of Electronic Engineering and Optoelectronic Technology，Nanjing University of Science and Technology，Nanjing 210094，China

Received:2008-05-15 Revised:2008-07-25 Online:2008-11-11 Published:2008-11-11
Contact: ZHANG Guang-feng

无源毫米波海岸线图像的边缘提取方法研究

张光锋,李兴国,娄国伟

南京理工大学电子工程与光电技术学院，南京 210094

通讯作者: 张光锋

Abstract

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.Finally 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.

Key words: coastal line, radiometric image, antenna temperature, edge extraction, morphological

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。

关键词: 海岸线, 辐射图像, 天线温度, 边缘提取, 形态学

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.

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.

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Research on coastal line edge extraction method from passive radiometric image

无源毫米波海岸线图像的边缘提取方法研究

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