摘要
随着移动互联网技术的迅猛发展,在网页和手机上构建大规模虚拟旅游环境越发盛行起来,基于Web3D的虚拟旅游关键技术也成为当前的研究热点。深入分析了虚拟旅游关键技术现状以及现阶段基于Web3D虚拟旅游存在的技术瓶颈,系统总结了基于Web3D虚拟旅游所涉及的若干关键技术研究进展,包括3D场景中树木、建筑物的轻量化建模技术、虚拟人行为建模技术,虚拟漫游导航技术,碰撞检测技术,大规模虚拟场景渐进式流式化传输技术;比较分析了Web3D虚拟现实引擎技术;最后指出了制约虚拟旅游发展的技术瓶颈问题,并展望了基于Web3D虚拟旅游关键技术"轻、快、真、美"的发展方向。
Some key technologies on how to build large-scale virtual tourism systems comprehensively on Web browsers and mobiles were analyzed and the current R＆D status on Web3 D virtual tourism was surveyed insightfully. Then, some methods were summarized, including 3D trees or plants modeling, 3D architectural modeling, 3D Virtual Human behavior modeling, virtual agents path planning, collision detection and progressive transmission strategy suitable for developing large scale Web3 D tourism scenarios. Also, some bottleneck problems of Web3 D virtual tourism system were investigated. At the same time, the lightweight 3D engine, the lightweight 3D modeling, the lightweight 3D streaming and P2 P based progressive transmission of huge Web3 D tourism contents would become much helpful to breakthrough those bottlenecks of Web3 D tourism systems were pointed out. In addition, all kinds of Web3 D engines in terms of lightweight, realism and efficiency that would be a good reference for developers to choose during various applications were compared comprehensively. Finally, the prospect of future investigation of Web3 D tourism system is presented, which will be going on in terms of four characteristics lightweight, high-speed, realism, beauty.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2014年第7期1541-1548,共8页
Journal of System Simulation
基金
十二五国家科技支撑计划项目子课题(2012BAC11B01-04)
现代工程测量国家测绘地理信息局重点实验室开放基金课题(TJES1205)
