Optimization of structural parameters of binocular vision system in remote 3-D coordinate measurement

WANG Xiang-jun; BIAN Yue-xin; LIU Feng; WU Fan-lu

doi:10.3788/OPE.20152310.2902

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Optimization of structural parameters of binocular vision system in remote 3-D coordinate measurement

Information Sciences | 更新时间：2020-08-13

- Optimization of structural parameters of binocular vision system in remote 3-D coordinate measurement
- Optics and Precision Engineering Vol. 23, Issue 10, Pages: 2902-2908(2015)
- 作者机构：
  
  1. 天津大学精密测试技术及仪器国家重点实验室天津,300072
  2. 天津大学微光机电系统技术教育部重点实验室天津,300072
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152310.2902
  CLC： TP391;TP242.6
- Received：17 April 2015，
  
  Revised：06 June 2015，
  
  Published：25 October 2015
- 稿件说明：
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王向军, 卞越新, 刘峰等. 远距离三维坐标测量中双目视觉系统结构参数的优化[J]. 光学精密工程, 2015,23(10): 2902-2908

WANG Xiang-jun, BIAN Yue-xin, LIU Feng etc. Optimization of structural parameters of binocular vision system in remote 3-D coordinate measurement[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2902-2908
王向军, 卞越新, 刘峰等. 远距离三维坐标测量中双目视觉系统结构参数的优化[J]. 光学精密工程, 2015,23(10): 2902-2908 DOI： 10.3788/OPE.20152310.2902.

WANG Xiang-jun, BIAN Yue-xin, LIU Feng etc. Optimization of structural parameters of binocular vision system in remote 3-D coordinate measurement[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2902-2908 DOI： 10.3788/OPE.20152310.2902.

摘要

针对双目视觉系统对远距离大视场复杂地形环境下目标点三维坐标的测量

研究了优化系统结构

提高双目视觉系统坐标测量精度的方法。分析了系统结构参数对测量精度的影响

通过在监测区域内设置靶标对系统进行标定。测量时

将获取的目标点图像信息代入测量模型进行解算

从而获得目标点的空间三维坐标。仿真分析了系统结构参数中调平传感器精度以及系统布局方式对三维坐标测量精度的影响

得出了其误差影响趋势。在此基础上

提出系统调平传感器精度为±0.1°的要求以及系统合理的布局方式

为构建双目视觉测量系统的布局提供参考。对直径200 m的区域进行了监测

结果显示目标点的相对定位误差均小于0.33%

满足系统的精度指标要求

同时使得系统现场架设更加方便快捷

避免了盲目性。

Abstract

To improve the measurement accuracy of a binocular vision system for target points in remote 3D coordinates

the system structure was optimized

and a high precision coordinate measurement method for the binocular vision system was given. The influence of system structure parameters on the measurement accuracy was analyzed

then the feature target was placed in the monitoring area to calibrate two cameras. In measurement

the image information of obtained feature target was induced into the measuring model to do a calculation and to obtain the space 3D coordinate. The effects of the measuring accuracy of a leveling sensor and the system layout on the 3D coordinate measurement accuracy were analyzed and the error change trends were obtained. It suggests the accuracy of the leveling sensor should be ±0.1° and the system layout should be more reasonable

which will provide a reference for constructing a excellent binocular vision system. In application to monitoring the area with a diameter of 200 m

the results show that the relative error of the target points is less than 0.33%

which satisfies the system's requirement

and is convenient for system's layout as well as avoids the design blindness.

关键词

Keywords

references

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王向军,韩双来. 弹落点坐标测量系统的快速校准方法及精度 [J]. 光学精密工程,2005,13(6): 686-690. WANG X J, HAN SH L. A high speed camera calibration method in coordinate measurement of bomb-fall and its precision analysis [J]. Opt. Precision Eng., 2005, 13(6): 686-690. (in Chinese)

王向军,王晶,刘峰,等. 野外大视场双目视觉物体定位监测系统的单参数快速标定 [J]. 光学精密工程,2013,21(10): 2664-2670. WANG X J, WANG J, LIU F, et al.. Fast calibration for binocular vision system with a large field [J].Opt. Precision Eng., 2013, 21(10): 2664-2670. (in Chinese)

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