摘要
复图像配准的关键是选择合适的匹配测度函数,但匹配测度函数对不同地形的适应性有待于研究。本文首先介绍了复相关系数法、实相关系数法、频谱极大值法和平均波动函数法的原理和机载双天线In SAR数据的配准流程,然后分别对比分析4种测度函数在机载In SAR山地和平地数据的精度和可靠性。实验结果表明,复相关系数法和频谱极大值法分别在山地和平地区域获得稳健。
The key to co-registration of complex images is in selecting appropriate match measures, but the adaptabilityof match measures at different terrain needs further study. Firstly, the principle of complex correlation coefficient, realcorrelation coefficient, maximum spectrum estimate method, average fluctuation function and the procedure of dualantenna airborne InSAR data processing are introduced in this paper. Secondly, the accuracy and reliability of four matchmeasures are analyzed and compared using the airborne InSAR data in mountain and flatarea. Experimental resultsshow that the complex correlation coefficient and maximun spectrum estimate method respectively get robust and highaccuracy co-registration result in mountain region and flat region.
作者
马凯
王仁礼
杨庆庆
陆华
MA Kai;WANG Renli;YANG Qingqing;LU Hua(Shandong Provincial Key Laboratory of Geomatics and Digtial Technology, Shandong University of Science and Technology, Qingdao 266590, China;Xi’an Aerors Data Technology Co., Ltd.Xi’an 710100, China)
出处
《地理信息世界》
2016年第4期50-53,共4页
Geomatics World
基金
国家自然科学基金项目(4157012140)资助
