基于点云、三维模型的交互式虚拟博物馆漫游系统设计

摘要

运用三维激光扫描技术获得博物馆内部点云,并在此基础上用3ds Max建立博物馆三维模型、进行材质贴图、灯光、摄像机和烘焙等工作,随后将模型导入VRP实现交互式虚拟博物馆系统的开发.馆藏文物用手持式非接触三维激光扫描仪进行扫描并加工处理后得到真实的三维数字文物模型.为保证效率和效果,利用LOD算法对建立的复杂模型进行简化.所设计的虚拟漫游场景,用户不仅可身临其境从多个视角观察整个场景,并可通过键盘、鼠标和距离触发观赏博物馆中的文物,实现了虚拟场景的人机交互控制.系统交互性良好,沉浸感强,可多角度、多种方式、多人称自主漫游博物馆并可近距离观察研究馆藏文物.%In this paper,the 3D laser scanning technology is used to obtain the interior point cloud of museum.And on this basis,3dS Max is used to establish a 3-dimensional model of the museum to complete texture mapping,baking and so on.Then the model is imported into VRP to develop an interactive virtual museum system.Cultural relics are collected and scaned by using hand-held non-contact 3d laser scanner,and then processed.The true 3-dimensional digital cultural relic model is then established.In order to ensure the efficiency and effectiveness,the LOD algorithm is used to simplify the model.In virtual roaming scene designed by us,user can observe personally on the scene from multiple perspectives,can also watch the cultural relics through the keyboard,mouse and distance trigger.Artificially interactive computer control of virtual scene is realized.System interaction is good,holds strong sense of immersion,multi angle,multi way,multi person autonomous roaming Museum,collection of cultural relics can be observed at close range.