InSAR干涉图空域滤波方法对比分析  

Comparison and Analysis of Spatial Filtering Methods of INSAR Interferograms

作　　者：阮越[1] 覃辉[2] 

机构地区：[1]桂林理工大学测绘地理信息学院广西空间信息与测绘重点实验室,广西桂林541004 [2]广东科学技术职业学院,广东珠海519090

出　　处：《地理空间信息》2014年第2期73-75,9,共3页Geospatial Information

基　　金：国家自然科学基金资助项目(41071294);广西自然科学基金资助项目(0991023)

摘　　要：介绍了现有的InSAR干涉图滤波方法种类。重点研究了空域滤波中的均值滤波和中值滤波的原理和流程,选取真实的图像数据在Matlab软件中编程进行处理,并比较了2种算法的优缺点,以及同样在中值滤波法下取不同窗口的优劣性。最后,用5种定量评价指标比较和评价了不同的处理方法所得到的结果。This paper introduced the existing range of INSAR interferograms i ltering method at i rst. And then, focus on the research of average filtering and median filtering in the spatial filtering, it studied the principle of two kinds of algorithms and i ltering process, and selected the real image data to process in the Matlab software program. This paper researched and analyzed the results of the procession to compare the advantages and disadvantages of these two algorithms, and the relative merits of take dif erent windows under the median i ltering method. At last, it used i ve kinds of quantitative evaluation index to compare and evaluate the results of different processing methods above-mentioned.

关 键 词：INSAR 干涉图 均值滤波 中值滤波 

分 类 号：P237.3[天文地球—摄影测量与遥感]