大型工程结构静动态变形摄像测量方法与应用(特邀)
Videometrics Methods and Applications of Static and Dynamic Deformation of Large-Scale Structures(Invited)
于起峰 1张强 2陈文均 2尹义贺 2陈铭杰 2雷雨 2刘立豪 2刘肖琳 2张跃强 2胡彪 2丁晓华3
作者信息
- 1. 深圳市智能光测与感知重点实验室,广东 深圳 518060;深圳大学物理与光电工程学院,广东 深圳 518060;国防科技大学空天科学学院,湖南 长沙 410073;图像测量与视觉导航湖南省重点实验室,湖南 长沙 410073
- 2. 深圳市智能光测与感知重点实验室,广东 深圳 518060;深圳大学物理与光电工程学院,广东 深圳 518060
- 3. 深圳市鹰眼在线电子科技有限公司,广东 深圳 518114
- 折叠
摘要
变形测量是大型工程建设与运维的基础性、常规性任务,是实验力学、结构健康监测学科最重要的内容之一,现有测量方法难以精准高效经济地实现大型工程结构大尺度高精度测量需求,迫切需要建立新的测量方法和技术.近年来,以摄像机/照相机为传感器的摄像测量理论手段具有非接触性、精度高、成本低等优势,被逐步应用于各种工程结构测量中.本文结合本团队的相机网络测量方法与系统,综述了单相机、多相机摄像测量系统,介绍了多相机系统的图像采集、相机标定、特征提取与跟踪、变形计算等关键算法,论述了摄像测量技术在长期监测和快速检测领域的相关应用,以及系统稳定性的主要影响因素,最后对大型工程结构静动态变形摄像测量方法与技术的成果和问题进行了总结,并展望了其未来发展趋势.
Abstract
Deformation measurement plays a crucial role in large-scale structures,experimental mechanics,and structural health monitoring.However,the current measurement methods do not meet the requirements of precise,efficient,and cost-effective measurements for such structures on a large scale with high precision.Therefore,there is an urgent need for new measurement methods and technologies.In recent years,videometrics methods,which utilize cameras as sensors,have gained popularity due to their non-contact nature,high accuracy,and low cost.This paper reviews both single-camera and multi-camera measurement systems based on the camera network measurement method and system developed by our team.It discusses key algorithms used in multi-camera systems,including image acquisition,camera calibration,feature extraction and tracking,and deformation calculation.Additionally,the paper explores the applications of videometrics technology in long-term monitoring and rapid detection,as well as the main factors that influence system stability.Finally,it summarizes the achievements and challenges of measurement methods and technologies for static and dynamic deformation of large-scale engineering structures,providing an outlook on future development trends.
关键词
大型结构/变形/静动态/摄像测量/多相机系统Key words
large-scale structures/deformation/static and dynamic/videometrics/multi-camera system引用本文复制引用
基金项目
国家重点研发计划(2019YFC1511102)
国家自然科学基金(52208339)
国家自然科学基金(12372184)
交通运输行业重点科技项目(2022-MS1-023)
出版年
2024
NETL
NSTL
万方数据