| 三维面形测量中结构光场的非线性分析和校正 |
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| 引用本文： | 郭志明,张启灿,麻珂. 三维面形测量中结构光场的非线性分析和校正[J]. 激光杂志, 2011, 0(1): 14-16 |
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| 作者姓名： | 郭志明 张启灿 麻珂 |
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| 作者单位： | 四川大学电子信息学院光电系; |
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| 摘 要： | 在基于数字投影的结构光三维面形测量中,相位测量轮廓术和傅立叶变换轮廓术是两种重要的方法,但由于受到CCD探测器光电响应的非线性、投影伽马的非线性以及环境光照等因素的影响,引起投影条纹正弦性的下降,最终导致相位和重建面形的误差.本文提出一种实用的结构光场生成方法,有效改善了结构光场的正弦性.从成像系统出发,通过理论推导,...
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| 关 键 词： | 相位测量轮廓术 三维面形测量 标准偏差 非正弦条纹 |
Analysis and correction of the nonlinearity of the structured light illumination in three-dimensional shape measurement |
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| GUO Zhi - ming,ZHANG Qi - can,MA Ke. Analysis and correction of the nonlinearity of the structured light illumination in three-dimensional shape measurement[J]. Laser Journal, 2011, 0(1): 14-16 |
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| Authors: | GUO Zhi - ming ZHANG Qi - can MA Ke |
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| Affiliation: | GUO Zhi - ming,ZHANG Qi - can,MA Ke (Department of Opto- Electronics,Sichuan University,Chengdu 610064,China) |
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| Abstract: | The phase measuring profilometry and Fourier transform profilometry are two important methods of 3 - D shape measurement based on structured light illumination.But the nonlinear of CCD detector,the gamma of the projector will impact the structured light illumination and lead to a decline the quality of the fringe pattern,also lead to the error of phase calculation and shape reconstruction.This paper presents a practical method to generate the structured light illumination with good sinusoidal characteristic... |
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| Keywords: | phase measuring profilometry 3-D shape measurement standard deviation non - sinusoidal fringe |
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