张家界市博物馆明代铜佛像的多视角影像三维重建探索

由于多视角影像三维重建具有数据采集方便灵活、硬件成本低、操作简单、自动化程度高的特点,因此,选用多视角影像三维重建技术对张家界市博物馆明代铜佛像进行三维建模。通过描述佛像立面与空心底部的影像采集,再应用Agisoft PhotoScan软件进行三维重建的过程;从控制点的三维坐标与误差数值、模型成像与影像图的误差分析,得出佛像三维模型的精度误差微小的结论,证明该技术具有操作简单、模型成像清晰的特点。与三维激光扫描技术相比较,多视角影像三维重建技术具有成本费用低、工作流程高效简捷的优势,更适合在文物工作中推广运用。

Application of multi-view three-dimensional reconstruction technology to the Ming Dynasty bronze Buddha in the Zhangjiajie Museum

Multi-view three-dimensional reconstruction technology was selected to carry out 3D modeling of a Ming Dynasty bronze Buddha in the Zhangjiajie Museum. This paper describes the process of collecting images from the facade and the hollow bottom of the Buddha, and the specific workflow of Agisoft PhotoScan software used for three-dimensional reconstruction. The error analyses of the 3D coordinate of the control points and the error values, the model imaging and the image results show that the accuracy error of the 3D model of the Buddha is small. Compared with three-dimensional laser scanning technology, the multi-view three-dimensional reconstruction technology has the advantages of low cost, simple and efficient workflow and clear model imaging, which can be further promoted in the use of cultural relics work.