SAR图像相干斑抑制方法综述  

Study on SAR Image Despeckling Algorithm

作　　者：鲁自立 贾鑫[2] 朱卫纲[2] 曾创展 

机构地区：[1]中国人民解放军装备学院研究生管理大队,北京101416 [2]中国人民解放军装备学院光电装备系,北京101416

出　　处：《兵器装备工程学报》2017年第6期104-108,共5页Journal of Ordnance Equipment Engineering

摘　　要：由于SAR是相干成像系统,在获取SAR图像时会含有相干斑噪声,使得SAR图像的解译,理解变得困难,因此有必要对SAR图像的相干斑进行抑制;首先介绍了相干斑的形成机理,之后对多视处理技术、空域滤波技术、变换域滤波技术和非局部均值滤波技术进行总结,在简要介绍各种方法的来源、理论基础和发展的基础上对比了各自的优缺点,最后展望了SAR图像相干斑抑制研究领域的进一步发展方向。Because SAR is a coherent imaging system containing coherent noise and it makes SAR image difficult to understand,it is necessary to despeckleling SAR image. In this paper,we firstly analyzes the forming of speckle,and then summarizes SAR image despeckling algorithm,such as multi-look filter technology,spatial domain filter technology,transform domain filter technology and non-local means filter technology. On the basis of the brief introduction of each algorithm＇s origin,theoretical foundation and development,their advantages and disadvantages are compared. At last, the paper summarizes the prospects of the developing direction of SAR image despeckling algorithm.

关 键 词：SAR图像 相干斑抑制 空域滤波 变换域滤波 非局部均值 

分 类 号：TP751.1[自动化与计算机技术—检测技术与自动化装置] TJ765[自动化与计算机技术—控制科学与工程]