| 基于特征点图像序列的多摄像机全局标定 |
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| 引用本文： | 贾倩倩,王伯雄,史辉,罗秀芝.基于特征点图像序列的多摄像机全局标定[J].清华大学学报(自然科学版),2009(5). |
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| 作者姓名： | 贾倩倩 王伯雄 史辉 罗秀芝 |
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| 作者单位： | 清华大学精密仪器与机械学系精密测试技术及仪器国家重点实验室; |
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| 摘 要： | 多摄像机的全局标定是影响视觉测量系统精度的关键。为了降低标定过程中多次坐标变换而引起的误差,本文提出了一种基于特征点图像序列的多CCD摄像机的全局标定方法,通过时间脉冲同步,在液晶显示屏靶标上显示一系列含有特征点的图像序列的同时,多个CCD进行拍摄,对用于显示的特征图像和CCD拍摄得到的图像进行处理和计算,即可对多个摄像机进行全局标定。该方法只需一次坐标变换,克服了常规方法下特征点难以被所有摄像机全部拍到的困难,用标定结果进行三角测量,最大绝对误差为0.08mm,证明了标定方法的精确性。
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| 关 键 词： | 特征图像 多摄像机 全局标定 |
Global calibration of multiple cameras based on an image sequence with feature points |
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| JIA Qianqian,WANG Boxiong,SHI Hui,LUO Xiuzhi.Global calibration of multiple cameras based on an image sequence with feature points[J].Journal of Tsinghua University(Science and Technology),2009(5). |
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| Authors: | JIA Qianqian WANG Boxiong SHI Hui LUO Xiuzhi |
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| Affiliation: | State Key Laboratory of Precision Measurement Technology and Instruments;Department.of Precision Instruments and Mechanology;Tsinghua University;Beijing 100084;China |
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| Abstract: | Global calibration of multiple CCDs is a key factor affecting the accuracy of vision measurements.This paper presents a global calibration method for multiple cameras that minimizes the error of coordinate conversion,based on image sequences with feature points.The images with feature points are shown on an LCD monitor one by one in an image sequence,with the cameras capturing each picture at the same time.The global calibration analyzes the original pictures shown on the LCD and the pictures captured by th... |
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| Keywords: | images with feature point multiple cameras global calibration |
| 本文献已被 CNKI 等数据库收录！ |
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