计算机应用 ›› 2011, Vol. 31 ›› Issue (05): 1431-1434.DOI: 10.3724/SP.J.1087.2011.01431

• 典型应用 • 上一篇    下一篇

多介质下空间目标的视觉测量

王俊1,朱战霞1,贾国华2,张旭阳2   

  1. 1.西北工业大学 航天学院,西安 710072
    2.西安易菲特视觉系统有限公司,西安 710049
  • 收稿日期:2010-09-26 修回日期:2010-12-09 发布日期:2011-05-01 出版日期:2011-05-01
  • 通讯作者: 王俊
  • 作者简介:王俊(1985-),女,陕西三原人,硕士研究生,主要研究方向:飞行器设计、视觉导航;朱战霞(1973-),女,陕西武功人,教授,博士,主要研究方向:飞行器动力学与控制;贾国华(1982-),男,山东聊城人,工程师,硕士,主要研究方向:图像处理。
  • 基金资助:

    国家自然科学基金资助项目(10772145)。

Multi-medium space target visual measurement

WANG Jun1, ZHU Zhan-xia1, JIA Guo-hua2, ZHANG Xu-yang2   

  1. 1.College of Astronautics, Northwestern Polytechnical University, Xi'an Shaanxi 710072, China
    2.Xi'an EvenFit Vision System Company Limited, Xi'an Shaanxi 710049, China
  • Received:2010-09-26 Revised:2010-12-09 Online:2011-05-01 Published:2011-05-01

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摘要： 基于计算机视觉的无接触三维测量原理和光的折射定律,提出一种多介质下空间目标视觉测量方法。采用多相机捆绑调整及多角度相互校正,通过双目立体视觉技术结合光线在多介质中发生两次折射的数学模型对运动体上各标志点进行测量,获取各标志点的三维空间坐标,经平面拟合、坐标转换,最终解算得到运动体六自由度空间坐标。实验结果表明,该方法适用于多介质视觉测量,具有较高的测量精度和良好的稳定性。

关键词: 多介质, 三维测量, 双目视觉

Abstract: Based on non-contact three-dimensional measuring principle of computer vision and light refraction principle, a new theoretical method of visual measurement in multi-medium was proposed. It used two teams of binocular cameras from different perspectives to observe space target in water, measured the various landmarks of the underwater target by making use of binocular stereo vision technology and the mathematical model of two light refractions, and then obtained the three-dimensional coordinates of landmarks, by plane fitting and coordinate transformation, eventually got six-dimensional position and attitude coordinates of underwater target. The results show that the method is suitable for multi-medium visual measurement with high accuracy and good stability.

Key words: multi-medium, three-dimensional measurement, binocular vision

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