首页 | 本学科首页   官方微博 | 高级检索  
     

一种新的VolumeLIC可视化方法
引用本文:刘占平,汪国平,董士海.一种新的VolumeLIC可视化方法[J].中国图象图形学报,2001,6(5):470-474.
作者姓名:刘占平  汪国平  董士海
作者单位:[1]中国科学院计算技术研究所智能信息处理开放实验室,北京100080 [2]中国科学院计算技术研究所智能信息处理开放实
基金项目:国家自然科学基金重点项目(60033020);高校骨干教师基金项目资助
摘    要:矢量场可视化是科学计算可视化中最具挑战性的研究课题之一,为了能在二维屏上直观显示三维矢量场,将基于纹理的LIC方法拓展到三维矢量场可视化,通过设计稀疏线噪声纹理并配合斜坡卷积核提高VolumeLIC图象质量,显著增强空间深度感,并采用光线投射直接体绘制方法生成VolumeLIC图象,另外,针对循环动画的突兀现象,提出HRCK(Hanninged RampConvolutionKernel)法生成流场的VolumeLIC循环动画,提出VolumeLICProbe交互洞察三维矢量场内部信息,通过实例表明,本文所提方法具有良好的可视化效果,交互方便,并已应用地幔可视化等领域。

关 键 词:矢量场可视化  噪声纹理  卷积核  VolumeLIC图象  线积分卷积方法  循环动画
文章编号:1006-8961(2001)05-0470-05
修稿时间:2001年2月15日

A New Method of VolumeLIC for 3D Vector Field Visualizat ion
LIU Zhan ping,WANG Guo ping and DONG Shi hai.A New Method of VolumeLIC for 3D Vector Field Visualizat ion[J].Journal of Image and Graphics,2001,6(5):470-474.
Authors:LIU Zhan ping  WANG Guo ping and DONG Shi hai
Abstract:Vector field visualization is one of the most challenging research issues for Visualization in Scientific Computing, which enable an efficient insight into the physical essence behind large|scale but abstract data obtained from scientific computation and experimentation, and has been paid more and more attentions, and widely used for those areas such as Computational Fluid Dynamics, aerodynamics, atmospherical physics and meteorology analysis. This paper extended LIC to VolumeLIC for 3D vector field visualization by volume rendering 3DLICed volumetric texture. Sparse Line Noise was designed and combined with Ramp Convolution Kernel to improve VolumeLIC image, with direction and depth cueing enhanced. HRCK was presented to create smooth cyclic animation without any pulsation. VolumeLIC Probe was further proposed for interactive insight deep into 3D vector fields.Finally, Closely based on above research work, VF|VTK(Vector Field Visualization Tool Kit) was exclusively designed and developed for three practical applications, the Visualization of the mantle movement, the flow field,and the high altitude airflow field. These applications have indicated that the methods presented in this paper are convenience, efficiency and robustness in practice.
Keywords:Vector field visualization  LIC  Noise texture  Convolution kernel
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《中国图象图形学报》浏览原始摘要信息
点击此处可从《中国图象图形学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号