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基于多层B样条插值的干涉合成孔径声纳配准偏移量插值算法
引用本文:张森,陈鸣,唐劲松.基于多层B样条插值的干涉合成孔径声纳配准偏移量插值算法[J].武汉水运工程学院学报,2013(6):1230-1234.
作者姓名:张森  陈鸣  唐劲松
作者单位:海军工程大学电子工程学院,武汉430033
基金项目:国家”863”计划项目(批准号:2007AA091101)、国家自然科学基金项目(批准号:61072092、61101205)资助
摘    要:针对干涉合成孔径声纳对配准精度要求较高而局部配准偏移量相差比较大的问题,提出采用多层B样条曲面插值实现配准偏移量的插值,既保证配准偏移量的插值精度,又能保证拟合曲面的光滑性。采用仿真数据和实际干涉合成孔径声纳数据验证了算法的性能,结果表明,提出的插值算法能有效提高插值精度和图像的相干系数,且能达到实时处理要求。

关 键 词:干涉合成孔径声纳  多层B样条插值  图像配准

Coregistration offset interpolating algorithm for InSAS based on Multilevel B-spline interpolation
Authors:ZHANG Sen  CHEN Ming  TANG Jinsong
Institution:(Electronic College of Engineering, Naval University of Engineering, Wuhan 430033,China)
Abstract:A coregistration offset interpolating algorithm based on Multilevel B-spline interpolation is proposed for interferometric synthetic aperture sonar (InSAS), because coregistration precision of InSAS should be less than 1/10 pixel and its coregistration error is often varied in a large scope. The proposed method can obtain precise coregistration offset interpolation and smooth interpolating curve. The simulated and real InSAS datasets are used to validate the performance of the algorithm. The results indicate that the proposed method can improve the interpolating precision and coherence of images, and can process in real time in InSAS system.
Keywords:InSAS  multilevel B-spline interpolation  coregistration
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