基于广义Gamma分布的高分辨率SAR图像海岸线检测

doi:10.3969/j.issn.0372-2112.2018.04.009

电子学报 ›› 2018, Vol. 46 ›› Issue (4): 827-833.DOI: 10.3969/j.issn.0372-2112.2018.04.009

基于广义Gamma分布的高分辨率SAR图像海岸线检测

王彬^1,2, 王国宇¹

1. 中国海洋大学信息科学与工程学院, 山东青岛 266100;
2. 青岛科技大学信息科学技术学院, 山东青岛 266061

收稿日期:2016-09-14 修回日期:2017-06-19 出版日期:2018-04-25
- 通讯作者:
- 王国宇
- 作者简介:
- 王彬女,1981年生于山东青岛.2005年毕业于青岛大学获得工学学士学位,2008年毕业于中国海洋大学信息科学与工程学院获得工学硕士学位.2008年就职于青岛科技大学信息科学技术学院,主要从事图像处理与分析、模式识别等方面的研究工作.E-mail:wangbin_qust@163.com

A Coastline Detection Method in High-Resolution SAR Images Based on the Generalized Gamma Distribution

WANG Bin^1,2, WANG Guo-yu¹

1. College of Information Science & Engineering, Ocean University of China, Qingdao, Shandong 266100, China;
2. School of Information Science & Technology, Qingdao University of Science & Technology, Qingdao, Shandong 266061, China

Received:2016-09-14 Revised:2017-06-19 Online:2018-04-25 Published:2018-04-25
- Corresponding author:
- WANG Guo-yu

摘要/Abstract

摘要： 本文针对高分辨率SAR图像，采用广义Gamma分布（GΓD）对杂波进行建模，在此基础上提出一种基于水平集分割的海岸线检测方法.GΓD是一种高度灵活的经验分布模型，能够对SAR图像不同类型的地物进行有效建模，其参数可由对数累量法估计得到.基于该分布建立能量泛函，并通过水平集方法最小化能量泛函进行海陆分割，得到海岸线检测结果.利用两幅TerraSAR-X实测SAR图像实验证明，该方法可以实现更精确的海岸线检测.

关键词: 合成孔径雷达, 广义Gamma分布, 水平集, 海岸线检测

Abstract:

A new level set method has been proposed for coastline detection in high-resolution SAR images based on the generalized Gamma distribution (G Γ D). The G Γ D is a statistical model with high flexibility, which is able to characterize the diversity of scenes in SAR images effectively. The parameter estimation of the G Γ D is realized by the method of log-cumulants. Then the energy functional is formulated based on the G Γ D. The coastline detection is achieved by minimizing the proposed energy functional using the level set segmentation method. Experimental results with measured TerraSAR-X images have demonstrated that the proposed method can obtain more precise coastline detection results.

Key words: synthetic aperture radar (SAR), generalized Gamma distribution (G &Gamma, D), level set method, coastline detection

中图分类号:

TN957.52

王彬, 王国宇. 基于广义Gamma分布的高分辨率SAR图像海岸线检测[J]. 电子学报, 2018, 46(4): 827-833.

WANG Bin, WANG Guo-yu . A Coastline Detection Method in High-Resolution SAR Images Based on the Generalized Gamma Distribution[J]. Acta Electronica Sinica, 2018, 46(4): 827-833.

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基于广义Gamma分布的高分辨率SAR图像海岸线检测

A Coastline Detection Method in High-Resolution SAR Images Based on the Generalized Gamma Distribution

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