Abstract
This paper introduces a continuous-time fast motion estimation framework using high frame-rate cameras. To recover the high-speed motions trajectory, we inherent the bundle adjustment using a different frame-rate strategy. Based on the optimized trajectory, a cubic B-spline representation was proposed to parameter the continuous-time position, velocity and acceleration during this fast motion. We designed a high-speed visual system consisting of the high frame-rate cameras and infrared cameras, which can capture the fast scattered motion of explosion fragments and evaluate our method. The experiments show that bundle adjustment can greatly improve the accuracy and stability of the trajectory estimation, and the B-spline representation of the high frame-rate can estimate the velocity, acceleration, momentum and force of each fragments at any given time during its motion. The related estimated result can achieve under 1% error.
Highlights
A continuous-time motion analysis has great engineering support for the damage assessment and cause analysis of an explosion [1]
We present a method of fast motion estimation of the explosion fragments
Diffuse motion, the high frame-rate (HFR) cameras are deployed in this research
Summary
A continuous-time motion analysis has great engineering support for the damage assessment and cause analysis of an explosion [1]. We present a method of fast motion estimation of the explosion fragments. A crack appears somewhere in the shell; Material leakage, resulting in pressure difference between the inside and outside of the shell; The shell is broken randomly, forming irregular fragments which are scattered with a related high initial velocity. To capture this fast, diffuse motion, the high frame-rate (HFR) cameras are deployed in this research. We used two HFR cameras to build a high-speed vision system capturing the high-speed motion
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
