High-Speed Videometric System Based on Camera Array
1 Introduction Due to the diverse advantages,e.g.,non-contact,full-field,etc.,videometric methods are widely used to measure the deformation variables such as displacement and rotation of objects 1.However,for the case involving instability of complicated structures,e.g.,buckling of reinforced thin-wall structures,stick-slip of interfacial structures,etc.,multi-scale dynamic deformation often happens; moreover,occurrence of structural instability is random.Thus,to investigate the mechanism of structural instability using photogrammetric method,the imaging system must satisfy high-speed,high-resolution and long-work-time simultaneously.However,owing to technological limitations,the current high-speed measurement system is invalid.It is impossible to realise the effective measurement of instability process of complicated structures relying on the development of high-speed imaging system.In this case,camera array system is a potential solution to this issue.With appropriate triggering controlling on camera array system,it is possible to achieve high-speed and long-work-time imaging,but without any reduction of the spatial resolution.More details about the principle and examples of the camera array system will be presented below.
Chao Wang Siyi Qin Qinwei Ma Haibin Zhu Shaopeng Ma
School of Aerospace Engineering,Beijing Institute of Technology,Beijing,100081,China
国际会议
海口
英文
211-213
2018-01-12（万方平台首次上网日期，不代表论文的发表时间）