一种改进的QEM网格简化算法及其应用研究  

An improved QEM mesh simplification algorithm and its application

作　　者：殷德莉 姚光顺[2] YIN De-li;YAO Guang-shun(Chuzhou Polytechnic,Chuzhou 239000,China;Chuzhou University,Chuzhou 239000,China)

机构地区：[1]滁州职业技术学院,安徽滁州239000 [2]滁州学院,安徽滁州239000

出　　处：《青海师范大学学报(自然科学版)》2024年第4期72-81,共10页Journal of Qinghai Normal University(Natural Science Edition)

基　　金：安徽省质量工程一般项目(2022jyxm1141);安徽省重点科研项目(KJ2020A0997);安徽省职业与成人教育学会科研规划课题重点项目(Azcj2022043)。

摘　　要：随着虚拟现实技术与各行各业应用的深度融合,很多情况下需要将虚拟现实应用发布至移动端设备平台,为了提升用户的使用体验,场景发布之前需要进行优化处理.为了获得更佳的优化效果,需要将场景中的模型Mesh进行简化,然而现有的Unity场景优化算法和技术存在优化性能不佳和优化工作量大的问题.本文提出了一种改进的基于曲率加权的网格简化算法,该算法引入顶点曲率评价因子优化传统QEM算法的最小二次误差度量,在简化单个模型以及优化特定Unity场景时表现出了较优的简化性能和较高的简化效率.With the deep integration of virtual reality technology with various industries,it is often necessary to publish virtual reality applications on mobile device platforms.In order to improve the user experience,optimization processing is required before scene release.In order to achieve better optimization results,it is necessary to simplify the Mesh model in the scene.However,existing Unity scene optimization algorithms and techniques suffer from poor optimization performance and huge optimization workload.This article proposes an improved curvature weighted Mesh simplification algorithm that introduces vertex curvature evaluation factors to optimize the minimum quadratic error metric of traditional QEM algorithms.It demonstrates superior simplification performance and efficiency in simplifying individual models and optimizing specific Unity scenes.

关 键 词：QEM算法 Mesh网格简化 LoD多细节层次 Unity场景 Unity性能优化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]