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- 2018
共享内存环境下的分块最小不连续相位解缠算法
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Abstract:
提出了一种共享内存环境下的分块最小不连续相位解缠方法。首先,利用多核协同计算整块相位质量图;然后,将干涉图和相位质量图分割为规则小块,采用质量引导与最小不连续相合成的方法同时对子块干涉图进行相位解缠;最后,主线程在不同解缠相位块以及位于边界的低质量区域上再次进行最小不连续优化,获取最终合并后的解缠结果。仿真和真实干涉相位图的分块解缠实验结果表明,所提算法在保持解缠精度的同时,加速比分别达到3.98和2.26
[1] | Arevalillo-Herráez M, Villatoro F R, Gdeisat M A. A Robust and Simple Measure for Quality-Guided 2D Phase Unwrapping Algorithms[J]. <em>IEEE Transactions on Image Processing</em>, 2016, 25(6):2601-2609 |
[2] | Ghiglia C D,Pritt D M.Two-Dimensional Phase Unwrapping:Theory, Algorithm, and Software[M].New York:John Wiley & Sons Inc,1998 |
[3] | Chen T.Statistical-Cost Network-Flow Approaches to Two-Dimensional Phase Unwrapping for Radar Interferometry[D].California:Stanford University,2001 |
[4] | Flynn T J. Two-Dimensional Phase Unwrapping with Minimum Weighted Discontinuity[J]. <em>Journal of the Optical Society of America A:Optics and Image Science</em>, and Vision, 1997, 14(10):2692-2701 |
[5] | Zhong Heping, Tang Jinsong, Zhang Sen, et al. A Guality-Guided and Local Minimum Discontinuity Based Phase Unwrapping Algorithm for InSAR/InSAS Interferograms[J]. <em>IEEE Geoscience and Remote Sensing Letters,</em> 2014,11(1):215-219 |
[6] | Huang Q, Zhou H, Dong S, et al. Parallel Branch-Cut Algorithm Based on Simulated Annealing for Large-Scale Phase Unwrapping[J]. <em>IEEE Transactions on Geoscience and Remote Sensing</em>, 2015, 53(7):3833-3846 |
[7] | Itoh K. Analysis of the Phase Unwrapping Algorithm[J]. <em>Applied Optical</em>, 1982, 21(14):2470-2478 |
[8] | Chen C W,Zebker H A.Phase Unwrapping for Large SAR Interferograms:Statistical Segmentation and Generalized Network Models[J].<em>IEEE Transactions on Geoscience and Remote Sensing</em>,2002,40(8):1709-1719 |
[9] | Carballo G F.Statistically-Based Multiresolution Network Flow Phase Unwrapping for SAR Interfe-rometry[D].Sweden:Kungliga Tekniska Hogskolan,2000 |
[10] | Chen Qiang, Yang Yinghui, Liu Guoxiang, et al. InSAR Phase Unwrapping Using Least Squares Method with Integer Ambiguity Resolution and Edge Detection[J]. <em>Acta Geodaetica et Cartographica Sinica</em>, 2012,41(3):441-448(陈强,杨莹辉,刘国祥,等.基于边界探测的InSAR最小二乘整周相位解缠方法[J]. 测绘学报,2012,41(3):441-448) |