馆藏文物三维测量与重建方法研究

A method of 3D measurement and reconstruction for cultural relics in museums

本文提出了一种基于结构光技术的馆藏文物三维测量与重建方法。该方法基于结构光原理获取文物表面密集的点云数据,对点云数据进行粗差检测与剔除、拼接、融合、三维构网等步骤建立精确的文物三维几何模型,为了表现文物本身的颜色材质信息,用高分辨相机获取物体表面的纹理,并将纹理与三维几何模型配准,生成具有高度真实感的、精确的文物三维模型。通过多种文物对该方法进行了测试,证明了该方法具有快速高效、精确逼真、操作简便等特点。

This paper proposed a structure-light based method for 3D measurement and reconstruction of cultural relies in museums. Firstly, based on structure-light principle, digitalization hardware was built to acquire dense point cloud of cultural relics＇ surface. To produce accurate 3D geometry model from point cloud data, multi processing algorithms were developed and corresponding software was implemented whose functions include blunder detection and removal, point cloud alignment and merging, 3D mesh construction and simplification. Finally, high-resolution images were captured, the alignment of these images and 3D geometry model was conducted and realized, and the accurate 3D model was constructed. Based on such method, a complete system including hardware and software were built. Multi-kinds of cultural relics were used to test this method and results proved its applicability with features such as high efficiency, high accuracy, easy operation and so on.