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结构光测量中分区域相位误差补偿方法研究

Sub-Regional Phase Error Compensation for Structural Light Measurement

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摘要

基于结构光的主动视觉测量技术因具有诸多优点在工业测量领域得到广泛应用,而投影仪和相机组成的测量系统的Gamma非线性、系统抖动以及噪声等因素,均易导致相位和三维测量结果出现较大误差。针对测量系统出现的Gamma非线性问题以及投影仪亮度分布不均匀导致Gamma值不同,投射单一灰度的图像于表面光滑的均匀白板,利用灰度特征对采集图像进行分区和直方图统计,建立不同区域的模型后,进而完成对初始相位的补偿。在求解相位之前,为避免系统抖动和噪声影响相位误差对图片进行预处理。将该方法应用于实际测量中,相位精度和测量精度大幅提高,该方法比已有的消除Gamma非线性影响的方法更简单方便。

Abstract

Active light measurement based on structured light is widely used in industrial measurement for its several advantages, while the Gamma nonlinearity, vibration, and noises easily lead to phase error and effect accuracy of three-dimensional measurement. Due to Gamma nonlinear problem for measurement system and different brightness distributions of projector, the system has different Gamma values. An image is projected on a standard whiteboard with smooth surface, and partitioned by using grayscale feature by histogram statistics. According to sub-regional information target area of the projector sub-area information is obtained to establish different regions modelling, which is used to compensate initial phase. To avoid system jitter and noise, original image is pre-processed before solving the phase. Applying this method to actual measurement, precision and accuracy of phase are greatly improved, and the method is simple and convenient, compared with existing methods of eliminating the nonlinearity of Gamma.

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中图分类号:TP391.4;TH89

DOI:10.3788/cjl201845.0604002

所属栏目:测量与计量

基金项目:国家自然科学基金(6508000070,51475092,61462072)

收稿日期:2018-01-08

修改稿日期:2018-01-30

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刘超:东南大学自动化学院, 江苏 南京 210096东南大学复杂工程系统测量与控制教育部重点实验室, 江苏 南京 210096
盖绍彦:东南大学自动化学院, 江苏 南京 210096东南大学复杂工程系统测量与控制教育部重点实验室, 江苏 南京 210096
达飞鹏:东南大学自动化学院, 江苏 南京 210096东南大学复杂工程系统测量与控制教育部重点实验室, 江苏 南京 210096

联系人作者:刘超(18751962676@163.com)

备注:刘超(1993—),男,硕士研究生,主要从事三维测量方面的研究。E-mail: 18751962676@163.com

【1】Su H. High accuracy structured light vision measurement method[D]. Harbin: Harbin Engineering University, 2014.
苏航. 高精度结构光视觉测量方法研究[D]. 哈尔滨:哈尔滨工程大学, 2014.

【2】Willi S, Grundhofer A. Robust geometric self-calibration of generic multi-projector camera systems[C]∥IEEE International Symposium on Mixed and Augmented Reality, 2017: 42-51.

【3】Nguye H, Nguyen D, Wang Z, et al. Real-time, high-accuracy 3D imaging and shape measurement[J]. Applied Optics, 2015, 54(1): A9-A17.

【4】Hoang T, Pan B, Nguyen D, et al. Generic gamma correction for accuracy enhancement in fringe-projection profilometry[J]. Optics Letters, 2012, 35(12): 1992-1994.

【5】Zheng D L, Da F P. Gamma correction method for accuracy enhancement in grating projection profilometry[J]. Acta Optica Sinica, 2011, 31(5): 0512003.
郑东亮, 达飞鹏. 提高数字光栅投影测量系统精度的gamma校正技术[J]. 光学学报, 2011, 31(5): 0512003.

【6】Xiao Y S, Cao Y P, Wu Y C, et al. Gamma nonlinearity correction based on Fourier spectrum analysis for phase measuring profilometry[J]. Acta Optica Sinica, 2012, 32(12): 1212004.
肖焱山, 曹益平, 武迎春, 等. 基于傅里叶频谱分析的相位测量轮廓术系统Gamma非线性校正方法[J]. 光学学报, 2012, 32(12): 1212004.

【7】Lin J Y, Huang J Q, Jiang K Y. Subregional Gamma pre-coding correction for phase error compensation [J]. Opto-Electronic Engineering, 2016, 43(9): 32-38.
林俊义, 黄剑清, 江开勇. 分区域Gamma预编码校正的相位误差补偿[J]. 光电工程, 2016, 43(9): 32-38.

【8】Li Z, Li Y. Gamma-distorted fringe image modeling and accurate gamma correction for fast phase measuring profilometry[J]. Optics Letters, 2011, 36(2): 154-156.

【9】Chen Y, Zhai L, Bao Q, et al. Nonlinear error correction method for entocentric projection in phase measuring profilometry[J]. Journal of Donghua University, (Natural Science) 2017, 43(1): 150-154.
陈益松, 翟丽娜, 鲍秋赟. 相位法轮廓测量中光栅近心投射的非线性误差校正算法[J]. 东华大学学报(自然科学版), 2017, 43(1): 150-154.

【10】Zhang S, Yau S T. Generic nonsinusoidal phase error correction for three-dimensional shape measurement using a digital video projector[J]. Applied Optics, 2007, 46(1): 36-43.

【11】Zheng D L, Da F P. Double-step phase-shifting algorithm for fringe-projection measurement[J]. Acta Optica Sinica, 2012, 32(5): 0512004.
郑东亮, 达飞鹏. 双步相移光栅投影测量轮廓术[J]. 光学学报, 2012, 32(5): 0512004.

【12】Yao J, Chen X, Zhou Y, et al. Phase error elimination considering gamma nonlinearity, system vibration, and noise for fringe projection profilometry[J]. Optical Engineering, 2014, 53(9): 094102.

【13】Pan B, Kemao Q, Huang L, et al. Phase error analysis and compensation for nonsinusoidal waveforms in phase-shifting digital fringe projection profilometry[J]. Optics Letters, 2009, 34(4): 416-418.

【14】Ma S, Quan C, Zhu R, et al. A fast and accurate gamma correction based on Fourier spectrum analysis for digital fringe projection profilometry[J]. Optics Communications, 2012, 285(5): 533-538.

【15】Zhou P, Liu X, He Y, et al. Phase error analysis and compensation considering ambient light for phase measuring profilometry[J]. Optics & Lasers in Engineering, 2014, 55(7): 99-104.

【16】Zhang C, Zhao H, Zhang L, et al. Full-field phase error detection and compensation method for digital phase-shifting fringe projection profilometry[J]. Measurement Science & Technology, 2015, 26(3): 035201.

【17】Majumder A, Stevens R. Color nonuniformity in projection-based displays: analysis and solutions[J]. IEEE Transactions on Visualization & Computer Graphics, 2004, 10(2): 177-188.

【18】Lv F, Xing S, Guo H. Self-correction of projector nonlinearity in phase-shifting fringe projection profilometry[J]. Applied Optics, 2017, 56(25): 7204-7216.

【19】Xiao Y, Cao Y, Wu Y, et al. Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry[J]. Optical Engineering, 2013, 52(5): 053605.

【20】Cui Y J, Zhang W F, Li J X, et al. A Method of Gamma correction in fringe projection measurement[J]. Acta Optica Sinica, 2015, 35(1): 0112002.
崔艳军, 张文峰, 李建欣, 等. 条纹投影三维测量的Gamma畸变校正方法[J]. 光学学报, 2015, 35(1): 0112002.

【21】Xiao C, Chen F, Zhong M. Method for improving measurement accuracy of inverse fringe[J]. Laser & Optoelectronics Progress, 2016, 53(11): 111204.
肖朝, 陈锋, 钟敏. 一种提升反向条纹测量精度的方法[J]. 激光与光电子学进展, 2016, 53(11): 111204.

引用该论文

Liu Chao,Gai Shaoyan,Da Feipeng. Sub-Regional Phase Error Compensation for Structural Light Measurement[J]. Chinese Journal of Lasers, 2018, 45(6): 0604002

刘超,盖绍彦,达飞鹏. 结构光测量中分区域相位误差补偿方法研究[J]. 中国激光, 2018, 45(6): 0604002

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