顾及局部特征的机场三维模型边折叠算法  

A Simplification Algorithm for Edge Collapse of 3D Airport Model Considering Local Characteristics

作　　者：陈雨 张建伟[1] 谭诗瀚[1] CHEN Yu;ZHANG Jianwei;TAN Shihan(National Key Laboratory of Fundamental Science on Synthetic Vision,Sichuan University,Chengdu 610065)

机构地区：[1]四川大学视觉合成图形图像技术国防重点学科实验室,成都610065

出　　处：《现代计算机》2021年第14期38-41,53,共5页Modern Computer

摘　　要：一般情况下,简化效果应由领域的应用需求决定。针对机场仿真应用的需求特点,在基于二次误差度量的边折叠算法上,提出一种顾及局部特征的机场三维模型边折叠算法。该算法将误差度量分为了两部分,一是基于二次误差的基础误差度量;二是机场局部特征区域误差度量。实验结果表明,该算法在模型简化时,使机场特征区域得到了较好地保留,提高模型简化的质量,平衡现有系统中渲染效果和渲染效率之间的矛盾,满足了用户需求。In general,the simplification effect should be determined by the application requirements of the domain.According to the requirements and characteristics of airport simulation application,an simplification algorithm for edge collapse of 3D airport model considering local characteristics is proposed.The algorithm divides the error measure into two parts:one is the basic error measure based on quadratic error;The second is the error measurement of the local characteristic area of the airport.The experimental results show that the proposed algorithm can keep the characteristic area of the airport well,improve the quality of the simplified model,balance the contradiction between rendering effect and rendering efficiency in the existing system,and meet the needs of users.

关 键 词：机场三维模型 边折叠算法 二次误差度量 机场局部特征 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]