摘要
InSAR复图像配准是合成孔径雷达干涉3维成像技术中的重要步骤之一。为了获得高精确度的测量结果,要求两幅复图像之间配准达到亚像素级配准精确度。提出了一种将相关匹配和最大谱图像配准相结合的配准新方法。在相关匹配进行粗配准的情况下,通过插值所选控制点的值,并采用最大谱图像配准方法以亚像素单元进行精配准,其配准精确度达到亚像素级。实验结果证实了所提出方法的有效性。
The registration for complex-image is one of the important steps on processing technology of relief image in interferometric synthetic aperture radar. It is desired to have the sub-pixel precision of registration between the two complex-images for obtaining result of high precision. A method integrating correlation registration and max-spectrum image registration is discussed. First, it has the pixel precision of registration using correlation registration method, then, max-spectrum image registration method is used to obtain sub-pixel precision of registration on the selected pixel. Experiment result has proved the validity of the method.
出处
《测绘学报》
EI
CSCD
北大核心
2003年第4期320-324,共5页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金资助项目(60075008)
德国科学研究基金(DFG)资助项目
