摘要
针对水中微气泡识别测量精度低的问题,该文提出一种基于多目高速摄影测量的水中微气泡参数测量方法,首先利用4台工业高速摄影相机搭建了多目摄影测量气泡观测系统,对水中的微气泡进行了采集,然后通过4台相机的正交双目测量技术计算出气泡的三维位置,并基于轮廓视觉包络方法对其三维模型进行了重建。在此基础上,通过测量生成的三维模型获取了气体夹带气泡的轨迹和气体夹带气泡的体积。实验表明,该方法在测量单个气泡体积的误差仅为0.31mm^(3),气泡个数的识别率高达99%,准确率为98.3%。说明该文提出的方法能有效地模拟出三维气泡的运动过程和轨迹,并精确获取气泡的体积。
Aiming at the problem of low precision in the detection and measurement of microbubbles in water,this paper proposed a methodology based on multi-view high-speed photography for quantifying the parameters of these microbubbles.Initially,a multi-view photographic measurement system 1was established using four industrial high-speed cameras,which were utilized to capture the waterborne microbubbles.Following this,the three-dimensional location of the bubbles was computed utilizing orthogonal binocular measurement techniques from the four cameras,and the three-dimensional models of the bubbles were reconstructed via the contour vision envelope method.Leveraging these models,the trajectory and volume of the gas-entrained microbubbles were determined.Experimental results demonstrated that the proposed methodology yields a minuscule error of merely O.31 mm when measuring individual bubble volumes,along with a high bubble count recognition rate of up to 99%,and an accuracy rate of 98.3%.These findings suggested that the methodology proposed herein could effectively simulate the motion and trajectories of three-dimensional bubbles,while also precisely determining their volumes.
作者
陈坚
徐秀云
范生宏
任文涛
范文杰
李潘
CHEN Jian;XU Xiuyun;FAN Shenghong;REN Wentao;FAN Wenjie;LI Pan(Beijing Prodetec Technology Co.Ltd.,Beijing 100083,China;Beijing Vitspace Technology Co.Ltd.,Beijing 102628,China)
出处
《测绘科学》
CSCD
北大核心
2023年第8期130-136,181,共8页
Science of Surveying and Mapping
基金
科技创新2030—“新一代人工智能”重大项目(2021ZD0109804)。
关键词
微气泡
多目高速摄影测量
三维模型
气泡轨迹
气泡体积
microbubbles
multi camera high-speed photogrammetry
3D model
bubble trajectory
bubble volume
