摘要
总结了在悬移质泥沙运动特性试验研究中常用的量测手段，介绍了图像处理技术的基本原理和系统的组成，针对图像处理中的几个具体问题，特别是光片厚度和粒子浓度的选择，结合实践经验进行了讨论．利用开发的颗粒示踪与图像处理系统，对明槽悬移质颗粒的运动特性进行了量测．实践表明，图像处理技术为悬移质颗粒运动特性的研究提供了有力的手段．
Various methods of measuring suspended sediment motion were summarized in this paper. The principle of particle image processing technique for velocity measurement was presented and some critical tech-nical problems about Particle Tracking Velocimetry (PTV), such as the PTV system, vertical concentration distrbutions and velocity profiles of suspended particles with diameter of 0. 3,0. 5,0. 7, 1. 0 mm were measured respectively. PTV is shown to be a powerful tool for suspended particle measurement in open channels.
出处
《水利水电技术》
CSCD
北大核心
1999年第5期20-22,共3页
Water Resources and Hydropower Engineering
基金
国家自然科学基金!5947012
教育部"跨世纪优秀人才计划基金"
关键词
图像处理
悬移质
泥沙运动
浓度分布
速度分布
image processing, suspended sediment, concentration distribution, velocity distribution
