Acta Geodaetica et Cartographica Sinica ›› 2024, Vol. 53 ›› Issue (9): 1725-1736.doi: 10.11947/j.AGCS.2024.20220711

• Precision Engineering Survey • Previous Articles    

Measurement field error analysis and on site evaluation method for binocular stereo industrial photogrammetry system

Dan ZHANG1,2(), Weifeng WANG1,3(), Guiping HUANG3,4, Xinping WANG3,4, Yanrong LIU5, Zhanghong ZHAO1   

  1. 1.College of Surveying and Mapping Engineering, Yellow River Conservancy Vocational and Technical College, Kaifeng 475003, China
    2.Henan Provincial Surveying and Mapping Realistic 3D Technology Engineering Research Center, Kaifeng 475003, China
    3.Zhengzhou Key Laboratory of Hydraulic Engineering Precision Survey, Zhengzhou 450046, China
    4.College of Surveying and Geo-Informatics, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
    5.Aerospace Shenzhou Intelligent System Technology Co., Ltd., Beijing 100089, China
  • Received:2022-12-20 Published:2024-10-16
  • Contact: Weifeng WANG E-mail:40663113@163.com;wangweifenganyang@163.com
  • About author:ZHANG Dan (1980—), male, master, associate professor, majors in photogrammetry and remote sensing. E-mail: 40663113@163.com
  • Supported by:
    The National Science and Technology Major Project(80-Y50G19-9001-22/23);Henan Science and Technology Research Project(222102220031);Special project of the Ministry ofEducation(ZJXF2022083);The Key Research Projects of Higher Education Institutions in Henan Province(21A420005);Research and Practice Project on Higher Education Teaching Reform in Henan Province(2021SJGLX667);Research Project on Vocational Education in Surveying and Mapping Geographic Information(2021CHZD02);The Key Research and Development Special Project of Henan Province(241111210300)

Abstract:

In response to the issue of mismatch between nominal accuracy and actual measurement accuracy in different application scenarios of the binocular stereo industrial photogrammetry system, in-depth research was conducted on the mesh structure of it. It has been found that if the intersection angle of the measurement points is large than 45°, the horizontal angle between measurement points and baseline among 28°and 68°, vertical viewing angle less than 23 °, and the distance between the measure points and the baseline among 0.4B and 1.3B, the measure points' accuracy is high. If the measure points out of this range, the uncertainty of the points measurement will increase. Based on the above conclusions, a method has been proposed that use a binocular stereo industrial photogrammetry system to measure the length of a scale-bar at specified positions within the measurement field. By comparing the difference between the measured values of the scale-bar and the nominal value, the accuracy of the system's measurement field can be quickly evaluated. Experiments have shown that this method can quickly and accurately evaluate the measurement field accuracy of the binocular stereo industrial photogrammetry system, which plays an important guiding role in ensuring the quality of on-site operations and improving the efficiency of on-site operations.

Key words: binocular stereo industrial photogrammetry system, measuring field, calibration, scale-bar

CLC Number: