Accuracy Improvement of Binocular Vision Measurement System for Slope Deformation Monitoring

Sensors

Ziyuan Feng¹  Yucheng Gu¹  Qijun Hu¹  Leping He¹  Yu Bai¹  Jie Tan¹  Junsen Zeng²  Qijie Cai³  Zihe Shou⁴ 

[1] School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China;School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China;School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, China;Sichuan Tibetan Area Expressway Co., Ltd., Chengdu 610041, China;

关键词: binocular vision;    accuracy analysis;    slope deformation monitoring;    structure parameters;    environment parameters;   

DOI  :  10.3390/s20071994

来源: DOAJ

【 摘 要 】

This paper studies the limitations of binocular vision technology in monitoring accuracy. The factors affecting the surface displacement monitoring of the slope are analyzed mainly from system structure parameters and environment parameters. Based on the error analysis theory, the functional relationship between the structure parameters and the monitoring error is studied. The error distribution curve is obtained through laboratory testing and sensitivity analysis, and parameter selection criteria are proposed. Corresponding image optimization methods are designed according to the error distribution curve of the environment parameters, and a large number of tests proved that the methods effectively improved the measurement accuracy of slope deformation monitoring. Finally, the reliability and accuracy of the proposed system and method are verified by displacement measurement of a slope on site.

【 授权许可】

Unknown