针对Miguel等人提出的质量图引导相位解包裹算法中串行运算效率较低的缺点,构造了一种多个低可靠度区块并行合并的改进算法。在满足原始算法设计思想的前提下,对解包裹路径进行重新定义,并根据原始算法的解包裹路径非连续的特性,构建了一种低可靠度区块乱序合并的策略,使得多个低可靠度区块的合并任务可以同时进行。改进算法采用多线程软件架构,主线程负责循环遍历未处理的区块,子线程接收待处理的区块执行合并任务。实验结果表明,改进方法与原始算法的处理结果完全一致,而并行改进策略可有效利用计算机多核资源,使得相位解包裹算法的运行效率提高了50%以上。
一种并行加速改进的快速相位解包裹算法
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出版日期:2020年12月22日
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参考文献
[1] Fornaro G, Franceschetti G, Lanari R, et al. Robust phase-unwrapping techniques: a comparison[J]. Journal of the Optical Society of America A, 1996, 13(12): 2355–2366.
[2] Bao H, Rao C H, Tian Y, et al. Research progress on adaptive optical image post reconstruction[J]. Opto-Electronic Engineering, 2018, 45(3): 170730.
鲍华, 饶长辉, 田雨, 等. 自适应光学图像事后重建技术研究进展[J]. 光电工程, 2018, 45(3): 170730.
[3] Wu S J, Yang J, Pan S Y, et al. Dynamic deformation measurement of discontinuous surfaces using digital speckle pattern interferometry and spatiotemporal three-dimensional phase unwrapping[J]. Acta Photonica Sinica, 2018, 47(2): 0212002.
吴思进, 杨靖, 潘思阳, 等. 数字散斑干涉术和时空三维相位解包裹用于非连续表面动态变形测量[J]. 光子学报, 2018, 47(2): 0212002.
[4] Chavez S, Xiang Q S, An L. Understanding phase maps in MRI: a new cutline phase unwrapping method[J]. IEEE Transactions on Medical Imaging, 2002, 21(8): 966–977.
[5] Yuan H X, Li J L, Luo P, et al. Image restoration for blurred fringes of rail profile 3D online measurement based on PMP[J]. Opto-Electronic Engineering, 2017, 44(7): 695?700.
袁宏翔, 李金龙, 罗鹏, 等. 基于PMP的钢轨三维形貌在线测量模糊条纹复原[J]. 光电工程, 2017, 44(7): 695–700.
[6] Goldstein R M, Zebker H A, Werner C L. Satellite radar interferometry: two-dimensional phase unwrapping[J]. Radio Science, 1988, 23(4): 713–720.
[7] Wang Y H, Chen W J, Zhong S M, et al. Research progress in phase unwrapping technology and its applications[J]. Measurement & Control Technology, 2018, 37(12): 1–7, 16.
王永红, 陈维杰, 钟诗民, 等. 相位解包裹技术及应用研究进展[J]. 测控技术, 2018, 37(12): 1–7, 16.
[8] Qian X F, Zhang Y A, Li X Y, et al. Phase unwrapping algorithm based on mask and least-squares iteration[J]. Acta Optica Sinica, 2010, 30(2): 440–444.
钱晓凡, 张永安, 李新宇, 等. 基于掩膜和最小二乘迭代的相位解包裹方法[J]. 光学学报, 2010, 30(2): 440–444.
[9] Costantini M. A novel phase unwrapping method based on network programming[J]. IEEE Transactions on Geoscience and Remote Sensing, 1998, 36(3): 813–821.
[10] Guo Y, Chen X T, Zhang T. Robust phase unwrapping algorithm based on least squares[J]. Optics and Lasers in Engineering, 2014, 63: 25–29.
[11] Huang K M, Yamada T. Phase unwrapping by regions using least-squares approach[J]. Optical Engineering, 1998, 37(11): 2965–2970.
[12] Flynn T J. Two-dimensional phase unwrapping with minimum weighted discontinuity[J]. Journal of the Optical Society of America A, 1997, 14(10): 2692–2701.
[13] Xu W, Cumming I. A region-growing algorithm for InSAR phase unwrapping[J]. IEEE Transactions on Geoscience and Remote Sensing, 1999, 37(1): 124–134.
[14] Herráez M A, Burton D R, Lalor M J, et al. Fast two-dimensional phase-unwrapping algorithm based on sorting by reliability following a noncontinuous path[J]. Applied Optics, 2002, 41(35): 7437–7444.
基金项目:
国家自然科学基金资助项目(11727805)
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龙潇, 鲍华, 饶长辉, 等. 一种并行加速改进的快速相位解包裹算法[J]. 光电工程, 2020, 47(12): 200111.
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