Surface Velocity Detection of Debris Flow by PIV and STDSM Methods

• Main Authors: Kuo-Hui Lin, 林國暉
• Other Authors: Chan-Ji Lai
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/18893736375594616086

碩士 === 國立成功大學 === 水利及海洋工程學系碩博士班 === 94 === 　　The surface velocity is one of the important physical parameters to study the debris flows. Owing to assure the safety of the life and wealth the monitored Video technology developed quick and more inexpensive. There are many regions have set up Video systems in river basin for monitoring the flood and debris flow. In this paper, it has been estimated by using image recognizing methods. We improve the image analysis methods, particle image velocimetry (PIV), and compare it with Spatio Temporal Derivative Space Method (STDSM). The hybrid method is tested to the experiments of the rocks floating and the simulate images. According to results, the nature debris flow images from the monitor of Soil and Water Conservation Bureau are analyzed to obtain the surface velocity by the image process. The objective is that establish the monitored Video systems using image technique to remote sensing the information of the debris flow.