基于OSG的MCSEM施工实时监测方法  

OSG BASED REAL TIME MONITORING METHOD FOR MCSEM SYSTEM

作　　者：王诏 刘展[2] 安聪荣[2] 张雪峰 魏合龙[1] 孙记红[1] 苏国辉[1] WANG Zhao;LIU Zhan;AN Congrong;ZHANG Xuefeng;WEI Helong;SUN Jihong;SU Guohui(Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China;School of Geosciences, China University of Petroleum（East China）, Qingdao 266580, China;North Institute of Computer Application, Beijing 10089, China)

机构地区：[1]中国地质调查局青岛海洋地质研究所,青岛266071 [2]中国石油大学(华东)地球科学与技术学院,青岛266580 [3]中国兵器工业计算机应用技术研究所,北京10089

出　　处：《海洋地质前沿》2018年第3期46-53,共8页Marine Geology Frontiers

基　　金：国家自然科学基金面上项目(41471322);中国地质调查局二级项目(DD20160157)

摘　　要：三维实时MCSEM监测系统强调的是监测的实时性,以三维可视化方式实时显示施工过程,有利于直观地监测和判断工作过程是否存在异常。根据MCSEM作业方式与流程,研究了在OSG三维渲染引擎的开发环境下,三维场景实时动态更新方法,包括三维模型实时更新、海底地形、轨迹线等要素绘制和相机实时跟踪;研究了三维场景数据组织结构与渲染状态机制,优化场景渲染,提高场景的响应速率,尽量保证三维显示的实时性、流畅性;开发了三维实时MCSEM监测系统进行实例验证,经过大量数据多次测试,系统运行稳定、响应及时,三维显示效果良好,较好地满足了实时监测的要求。The main advantage of a 3D real-time MCSEM monitoring system is its characteristics of real-time.Displaying the construction process with 3D visualization methods in real-time contributes to avoiding abnormities through monitoring and analyzing the work process.This paper develops a realtime dynamic update method to deal with 3D scenes.The method bases on the practices and procedures of MCSEM,and is implemented with the OSG 3D rendering engine,including the real-time updates of 3D models,the plotting of topographic features like the seabed topography and trace,and the real-time tracking of cameras.In addition,this paper contributes to the scene rendering optimization by studying the data structure and rendering mechanism of 3D scenes.The scene rendering optimization mainly results in the improvement of responding rate and the real-time and fluency of 3D display.Furthermore,an advanced 3D real-time monitoring system is implemented and further verified to meet the requirements of real-time monitoring.

关 键 词：OSG 三维实时监测 MCSEM 渲染优化 

分 类 号：TP277.2[自动化与计算机技术—检测技术与自动化装置]