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| An Image Automatic Registration Algorithm for InSAR Complex Images Based on Curve Fitting |
| Liu Bao-quan; Feng Da-zheng; Li Jun-xia; Wu Nan |
| National Lab. for Radar Signal Processing, Xidian University, Xi’ an 710071, China |
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Abstract Due the presence of multiplicative and speckle noise, the method of registering InSAR image is more difficult than traditional image registration methods. In this paper , an automatic InSAR image registration method is presented, based on B-spline curve fitting and matching, that can handle the registration of InSAR image efficiently. After the registration parameters are established by the least square method, a two-step method is applied to registering with sub-pixel accuracy. The experimental results demonstrate the algorithm is of robustness, efficiency and accuracy.
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Received: 22 December 2005
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2007, Vol. 29 
