查询结果:   龚星宇,常心坦,贾澎涛.动态场景下视点相关简单块状分层方法[J].计算机应用与软件,2015,32(5):102 - 104,181.
中文标题
动态场景下视点相关简单块状分层方法
发表栏目
应用技术与研究
摘要点击数
803
英文标题
SIMPLE VIEW-DEPEND BLOCK STRATIFICATION METHOD IN DYNAMIC SCENES
作 者
龚星宇 常心坦 贾澎涛 Gong Xingyu Chang Xingtan Jia Pengtao
作者单位
西安科技大学计算机科学与技术学院 陕西 西安 710054 西安科技大学能源学院 陕西 西安 710054    
英文单位
College of Computer Science and Technology,Xi’an University of Science and Technology,Xi’an 710054,Shaanxi,China College of Energy,Xi’an University of Science and Technology,Xi’an 710054,Shaanxi,China    
关键词
虚拟现实 视点相关 场景管理 动态场景 三维模型
Keywords
Virtual reality View-depend Scene management Dynamic scenes 3D model
基金项目
陕西省自然科学基金项目(2012JQ80 35)
作者资料
龚星宇,讲师,主研领域:图像处理与可视化。常心坦,教授。贾澎涛,副教授。 。
文章摘要
针对虚拟现实动态场景下规则模型组细节层次渲染速度优化问题,提出一种基于块状分层建模思想的视点相关细节层次表示方法。该方法以简单的方式实现规则模型组动态LOD表示和场景模型文件的合理缩减。首先通过块状分层有效组织管理三维场景,使总体动态场景文件有所减少,然后利用所提动态权系数算法,计算各块状分层动态显示系数,最终以简单、快速的方式构建三维场景动态变化下场景模型,实现各结构块不同细节层次显示的虚拟动画。实验结果显示,该方法能够减小程序文件6.8%~10.6%,证明块状分层易于实现和方法的有效性。
Abstract
We present a view-depend level of detail (LOD) representation method, which is based on block stratified modelling idea, to deal with the problem of rendering speed optimisation for LOD of regular model group in dynamic scenes of virtual reality. The method implements the dynamic LOD representation of regular model group and the reasonable reduction of scene’s model file in a simple way. First, it effectively organises and manages 3D scene by block stratification to have the overall dynamic scene files decrease. Then, it uses the proposed dynamic weight coefficient algorithm to calculate dynamic display coefficient of each block stratum. Finally, it constructs the 3D scene model of dynamic scene variation with simple and fast way to realise virtual animation of each structural block displayed in different LOD. Experimental results show that this method can reduce the program files about 6.8% to 10.6%, and prove that the block stratification is easy to implement, and prove the effectiveness of the method as well.
下载PDF全文