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

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

学术论文

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

作者信息 +

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

WANG Bin^1,2, WANG Guo-yu¹

Author information +

文章历史 +

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.

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.

导出引用

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. https://doi.org/10.3969/j.issn.0372-2112.2018.04.009

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. https://doi.org/10.3969/j.issn.0372-2112.2018.04.009

中图分类号： TN957.52

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