低端环境下实现虚拟敦煌漫游实时传输与绘制

Real Time Transmission and Rendering in Low End Environment --Virtual Dunhuang Walkthrough System

描述一个用于敦煌洞窟三维重建和虚拟漫游的实时交互系统 .通过该系统的实现 ,尝试了低端硬件环境下的实时传输与绘制 .在建立一个面向纹理数据的高速缓存层级管理模型基础上 ,部分接管了操作系统自身的存储管理机制 ,以进行纹理数据的动态调度 ;并运用基于用户行为的推算定位算法和基于选择机制的感兴趣区域算法对调度进行指导 .

A real time walkthrough system for Dunhuang is described. On the basis of our system, we have experimented with the implementation of real time transmission and rendering in low end environment. Dynamic scheduling of texture data is well performed based on our texture oriented cache hierarchy management, and at the same time we propose some algorithms such as user behavior based dead reckoning, and area of interest with selection mechanism. Final result demonstrates the values of our algorithms.