摘要
针对水下地形冲刷过程发展的特点,引进医学领域图像处理与分析技术,提出了以波长635 nm的红色线状激光为辅助光源、以MATLAB图像识别处理技术为基础的水下地形冲刷监测方法.该方法具有非接触性测量、实时同步监测等特点.同时基于MATLAB的图像识别原理,提出了重现水下地形的数字化方法.通过在河工模型局部冲刷发展研究中的实际应用及误差分析,结果表明监测系统十分有效,可以实现水下地形冲刷过程的实时精细监测及动态分析.
According to the development characteristics of underwater topography scouring process, the paper introduces medical image processing and analysis technique and puts forward the monitoring method of underwater topography scouring, which takes red line laser with 635 nm wavelength for auxiliary and MATLAB image recognition as basis. At the same time, the paper introduces the characteristics of this method such as non-contact, real-time and image recognition based on MATLAB and the creation method of digital terrain model （ DTM ） of underwater topography. Through the application and error analysis of this system, the results show that this system is very effective for the study of local scouring development during river model tests. And the system realizes realtime monitoring and dynamic analysis of underwater topography scouring process, which further proves that this system is well practical for river model test studies.
出处
《水利水运工程学报》
CSCD
北大核心
2011年第3期53-58,共6页
Hydro-Science and Engineering
基金
国家自然科学基金资助项目(51079055)
水利部公益性科研专题资助项目(200901018)
关键词
图像识别
水下地形
冲刷过程
激光
监测
image recognition
underwater topography
scouring process
laser
monitoring
