| 大视场双目视觉传感器的现场标定 |
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| 引用本文： | 孙军华,吴子彦,刘谦哲,张广军.大视场双目视觉传感器的现场标定[J].光学精密工程,2009,17(3). |
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| 作者姓名： | 孙军华 吴子彦 刘谦哲 张广军 |
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| 作者单位： | 北京航空航天大学,精密光机电一体化技术教育部重点实验室,北京,100191 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 分析了摄像机和双目视觉传感器的数学模型,针对大视场视觉测量应用,提出了一种基于基线尺的大视场双目视觉传感器标定方法.在测量空间内任意多次摆放基线尺,由两摄像机拍摄基线尺图像.利用基本矩阵及基线尺上两特征点之间距离的约束,采用线性解和非线性优化相结合的方法同时估计摄像机的内部参数以及双目视觉传感器的结构参数.该标定方法操作简单,标定效率高,无需初始参数即可估计双目立体传感器的全部参数.实验结果表明,该方法适合双目立体视觉传感器的现场标定,在6 000 mm×4 500 mm的范围内可以得到0.06 mm的测量精度.
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| 关 键 词： | 立体视觉传感器 标定 大视场 基线尺 基本矩阵 |
Field calibration of stereo vision sensor with large FOV |
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| SUN Jun-hua,WU Zi-yan,LIU Qian-zhe,ZHANG Guang-jun.Field calibration of stereo vision sensor with large FOV[J].Optics and Precision Engineering,2009,17(3). |
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| Authors: | SUN Jun-hua WU Zi-yan LIU Qian-zhe ZHANG Guang-jun |
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| Affiliation: | Key Laboratory for Precision Optical-mechanical Technology of the Ministry of Education;Beihang University;Beijing 100191;China |
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| Abstract: | The mathematical model of a stereo vision sensor is analyzed. Aiming at the application of vision measurement in large Field of View (FOV), a novel calibration method for stereo vision sensor with large FOV is proposed. A baseline rulur is randomly placed in FOV of the vision sensor for several times and the images of the feature points on the baseline rulur are acquired by the cameras. Then, based on the foundational matrix and the constraint of the known distance between two feature points on the target, ... |
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| Keywords: | stereo vision sensor calibration large FOV baseline ruler fundamental matrix |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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