一种面向造像类文物的真三维模型精细重建方法  

A Method for Reconstructing Precise 3D Models for Statues

作　　者：夏国芳[1,2] 胡春梅 范亮[3] XIA Guofang;HU Chunmei;FAN Liang(Beijing UniversitT of Civil Engineering and Architecture, Beijing 102616;China Cultural Heritage Information and Consulting Center, Belling 100029;China Energy Engineering Group Guangdong Electric Power Design Institute Co.Ltd., Guangzhou, Guangdong 510663)

机构地区：[1]北京建筑大学,北京102616 [2]中国文物信息咨询中心,北京100029 [3]广东省电力设计研究院有限公司,广东广州510663

出　　处：《敦煌研究》2018年第3期131-140,共10页Dunhuang Research

基　　金：国家自然科学基金(41401536);促进高校内涵发展定额项目-建大英才-胡春梅

摘　　要：本文提出了一种造像类文物高几何精度、高纹理分辨率的精细三维重建方法。首先利用高精关节臂激光扫描点云数据重建高精度几何模型;其次,应用高分辨率、高重叠度影像重建高分辨率三维纹理模型;再次,根据最邻近点迭代算法对两种数据进行高精度配准,并内插关节臂几何模型各顶点的纹理坐标,以生成对象的精细真三维彩色模型。实验表明,该方法能够进行高效精细建模,对造像类及其他所有非规则文物的数字存档、三维监测、虚拟展示等有重大应用价值。In this paper, a 3D reconstruction method for statues of high geometricand texture resolution is proposed. The reconstruction procedure of the model for a statue is as follows： First, a measuring arm laser is used to acquirea high precision geometric outline, followed by the construction of a mesh model; Second, using overlapped high resolution images to reconstruct a 3D texture model; and third, finishing the high precision coordination of the two kinds of data according to the nearest point-iterative algorithm and then interpolating the texture coordinate of each vertex of the geometric mesh model to createa a precise 3D texture model. The experimental results show that this method is very effectivefor high precision modeling with realistic texture and will be of great use for digital archiving, 3D monitoring, and virtual displays.

关 键 词：石窟寺 造像 测量臂 精细重建 纹理坐标 

分 类 号：O439[机械工程—光学工程]