直方图在SAR图像处理中的应用研究  

The Application Research of Histogram of SAR Images Processing

作　　者：王卫红[1] 程栋[1] 陈博[1] WANG Wei-hong CHENG Dong CHEN Bo(China Academy of Electronics and Information Technology, Beijing 100041, China)

机构地区：[1]中国电子科学研究院,北京100041

出　　处：《中国电子科学研究院学报》2017年第1期90-95,共6页Journal of China Academy of Electronics and Information Technology

摘　　要：直方图计算代价小,且具有图像平移、旋转、缩放不变性等优点,被广泛用于SAR图像处理中。本文在阅读大量文献的基础上,综述了直方图在SAR图像对比度增强、杂波分布拟合、CFAR检测、图像分割等方面的典型应用和算法,并通过一些实测SAR图像对这些应用和算法进行了比较试验。试验结果一方面表明基于直方图的各类方法是有效的、便捷的;另一方面表明,采用基于直方图的方法仅适用于一些精度要求不十分严格,但是运算速度要求较高的场合。Because of its low computational cost and the advantages of image translation, rotation and scale invariance, histogram is widely used in SAR image processing. In this paper, typical applications and algorithms are summarized in the histogram of SAR image contrast enhancement and clutter distribution, CFAR detection, image segmentation. At the same time, the contrast tests are done through some real SAR images. The experimental results show that the method based on histogram is effective and convenient. On the other hand, the results also shoe that the method is only suitable for some applications with low accuracy but high computational speed.

关 键 词：直方图 对比度增强 杂波分布拟合 CFAR检测 图像分割 

分 类 号：TP957.52[自动化与计算机技术]