| 基于彩色栅线的结构光动态三维测量技术研究 |
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| 引用本文： | 韦争亮,钟约先,袁朝龙.基于彩色栅线的结构光动态三维测量技术研究[J].光学技术,2009,35(4). |
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| 作者姓名： | 韦争亮 钟约先 袁朝龙 |
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| 作者单位： | 清华大学机械工程系,先进成形制造教育部重点实验室,北京,100084 |
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| 摘 要： | 结构光动态三维测量能够实现运动或者变形物体型面重构。将6色3次伪随机条纹序列的色彩信息溶入亮度呈余弦周期性变化的数字栅线图中,构成彩色栅线空域编码图案。图像解码采用仿视觉过程。在直觉处理阶段,通过亮度峰值与对应的色彩信息来实现周期划分;在专注处理阶段,通过局部亮度变化关系来进行空域解相。实验结果证明,测量系统只需投影单幅图案即可实现物体形貌的三维重构,可满足动态测量的要求,结合亚像素匹配可保证一定的测量精度,能形成多分辨率测量。
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| 关 键 词： | 结构光三维测量 伪随机序列 彩色栅线 空域解相 |
Research on the technique of dynamic 3D measurement of structured light based on color grating |
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| WEI Zheng-liang,ZHONG Yue-xian,YUAN Chao-long.Research on the technique of dynamic 3D measurement of structured light based on color grating[J].Optical Technique,2009,35(4). |
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| Authors: | WEI Zheng-liang ZHONG Yue-xian YUAN Chao-long |
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| Institution: | WEI Zheng-liang,ZHONG Yue-xian,YUAN Chao-long(Key Laboratory for Advanced Materials Processing Technology,Ministry of Education,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Dynamic 3D measurement of structured light can realize the reconstruction of surface of objects of move or deform.The color information of pseudo random stripes sequence in three order with six hues is added into the digital grating which intensity varies as cosine in periods,forming space coding pattern of color grating.The image decoding simulates the process of human vision.In the intuition section the periods are divided based on the intensity peak and the correspond color,in the focus section the phase... |
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| Keywords: | 3D measurement of structured light pseudo random sequence color grating space phase demodulation |
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