摘要
介绍用于实时显示的泥石流三维模型动态内插方法 ,它是根据水力学、计算数学与泥石流运动学原理 ,运用计算机动画中移动点约束条件插补算法 ,结合泥石流本身独有的特点 ,对泥石流两次摄影构成像对之间按时序内插 ,以获取用于三维动态显示的数据的方法 .在本方法中 ,加入了影响泥石流流态的四种因素 ,解决了泥石流流体在计算机三维动态显示数据来源问题 ,数字模型恢复摄影两次曝光之间未捕捉到的运动信息使泥石流动态显示成为可能 。
This paper introduces a dynamic interpolation method for the three dimensional model of debris flow used in real time display,which is based on the principle of hydraulics,computational mathematics and kinematics of debris flow.The computer interpolation arithmetic is used to control the condition for moving points with the intrinsic characteristics of debris flow taken into account. Finally, the pair of images formed by two photogrammetries is inserted in the order of time so as to obtain the data for displaying the three dimensional animation.Four factors that influence the state of the flow are taken into account, and the problem of data sources when the body of debris flow is displayed on the computer has been solved.The digital model can restore the movement information of debris flow between two exposures of the photogrammetry and that makes dynamic display possible.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
2000年第4期50-53,共4页
Journal of Hohai University(Natural Sciences)
关键词
动态内插
泥石流
三维动态显示
插补算法
dynamic interpolation
debris flow
three dimensional display
interpolation arithmetic
