全球多分辨率虚拟地形环境的金字塔模型研究  

Research on Pyramid Model for Global Multi-resolution Virtual Terrain Environment

作　　者：杜莹[1] 武玉国[1] 王晓明[1] 游雄[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《系统仿真学报》2006年第4期955-958,967,共5页Journal of System Simulation

基　　金：国家自然科学基金项目(40371090)

摘　　要：针对全球多分辨率地形环境的数据特点和渲染需要,结合多分辨率LOD(MRLOD)模型技术,设计并实现了一种面向全球的金字塔模型,并详细说明了金字塔模型的构建规则。在分析传统分层分块方案的不足的基础上,提出了设计的分层分块方案,并分析了方案的可行性和分层分块后的结构组织。A new MRLOD-based pyramid model for global multi-resolution virtual terrain environment was put forward, in which there were still many difficult problems to resolve, such as massive data and low frame rate. After discussing the disadvantages of traditional methods when building a pyramid model, a new method was described, and then it was explained of how to build a pyramid model, how to divide it into layers and blocks and how to organize them in order.

关 键 词：细节层次 多分辨率细节层次 多分辨率 金字塔模型 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]