| 基于时间散焦分析法的三维信息采集 |
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| 引用本文： | 龙清,李宏宁,孙宝,杨明,刘强,张峰. 基于时间散焦分析法的三维信息采集[J]. 光学仪器, 2021, 43(3): 52-59 |
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| 作者姓名： | 龙清 李宏宁 孙宝 杨明 刘强 张峰 |
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| 作者单位： | 云南师范大学 物理与电子信息学院,云南 昆明 650500 |
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| 基金项目： | 国家级大学生创新创业训练计划（202010681050）；云南师范大学科创基金（ysdyjs2020146） |
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| 摘 要： | 为了测量被测物的距离信息,结合投影系统的三维信息采集方法,研究了一种基于时间散焦分析的三维信息采集方法.通过向被测物投影移动的条纹,分析照明模式在各点的散焦度,利用傅里叶变换解析被测物各点的距离信息.实验结果表明,该方法不需要考虑点匹配问题,能单独计算各点的位置信息,并且能测量较大的距离.
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| 关 键 词： | 三维信息采集 投影 散焦条纹 离焦度 |
| 收稿时间： | 2020-12-31 |
Three-dimensional information collection based on temporal defocus analysis method |
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| LONG Qing,LI Hongning,SUN Bao,YANG Ming,LIU Qiang,ZHANG Feng. Three-dimensional information collection based on temporal defocus analysis method[J]. Optical Instruments, 2021, 43(3): 52-59 |
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| Authors: | LONG Qing LI Hongning SUN Bao YANG Ming LIU Qiang ZHANG Feng |
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| Affiliation: | School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China |
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| Abstract: | In order to measure active scene or object depth information combined with a 3D information collection method of a projection system, a 3D information collection method based on temporal defocus analysis method is studied. By projecting the moving fringe to the scene, the defocus of the projection fringe at each point is analyzed, and the Fourier transform is used to analyze the depth information of each point in the scene. The experimental results show that the method can calculate the position information of each point separately, and measure the depth of a larger scene without considering the point matching problem. |
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| Keywords: | three-dimensional information collection projection defocus fringes defocus |
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