摘要
为观测卵砾石推移质输移现象并研究其输移规律,研发了一种新的卵砾石输移观测设备。采用加入摄像系统的卵砾石输移实时观测系统,分析了设备对卵砾石推移质输移观测效果,提供了推移质输移观测新思路。从卵石参数识别效果出发,定量分析了设备对天然卵石的识别准确度和观测精度。研究结果表明,摄像法可准确捕捉运动卵石位置信息和运动路径,经过图像处理后的卵石粒径等参数平均识别误差均在15%以内,能够为卵石推移质观测提供设备和技术支撑。
To study gravel bed load transport law,a new gravel transport observation equipment was developed.The real-time observation system of gravel transport with camera system is used to analyze the observation effect of the equipment on gravel bed load transport.Based on the identification effect of pebble parameters,the identification accuracy and observation accuracy of the equipment for natural pebbles are quantitatively analyzed.The research results show that the camera method can accurately capture the position information and moving path of moving pebbles;After image processing,the average identification error of pebble particle size and other parameters is within 15%,which can provide equipment and technical support for pebble bed load observation.
作者
毛浩丞
杨胜发
张鹏
闫路遥
MAO Hao-cheng;YANG Sheng-fa;ZHANG Peng;YAN Lu-yao(School of River&Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Research Center of Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《泥沙研究》
CAS
CSCD
北大核心
2023年第4期32-37,共6页
Journal of Sediment Research
基金
国家重点研发计划项目(2018YFB1600400)。
关键词
推移质观测
摄像法
卵石图像处理
准确度分析
bed load observation
camera method
pebble image processing
accuracy analysis
