针灸铜人三维可视化研究与应用

Research and application of 3D visualization for bronze acupuncture figure

针对针灸铜人这类文化遗产数字化保护手段单一、体验性差和传播力不强等问题,提出了一种综合利用三维激光扫描、三维可视化和虚拟现实等技术的数字化方法。以湖北省博物馆珍藏的腧穴针灸铜人为对象,首先采用三维激光扫描技术进行数据采集和三维建模;然后使用XML语言对其承载的传统中医知识进行存储与表达,重点利用基于改进的二次误差度量和递进网格算法实现铜人多分辨率简化模型的自动生成;最后利用Unity引擎开发了一套针灸铜人虚拟交互展示系统,实现了穴位、经络和常见疾病等传统中医知识在三维场景下的快速可视化与交互查询,为历史文物与非物质文化遗产的数字化保护及传播提供了借鉴。

The traditional protection of this kind of cultural heritage focuses on text, pictures, and video, leading to poor user experience and dissemination. This paper proposed a new approach of digitalization by using three dimensional (3D) laser scanning, 3D visualization and virtual reality. Taking the bronze acupuncture figure with acupoints collected by Hubei Provincial Museum as an example, this paper firstly applied 3D laser scanning technology to capture 3D point cloud data of it. Secondly, it represented and stored knowledge models of traditional Chinese medicine through XML(extensible markup language). Thirdly, it proposed a mesh simplification algorithm based on modified quadric error metric and progressive mesh construction to automatically generate multiresolution 3D models. Finally, this paper developed a Unity engine based virtual and interactive system for bronze acupuncture figure, and provided the 3D visualization and interactive query of acupoints, meridians and common diseases. The proposed method is able to provide a reference solution for the digital protection and dissemination of historical relics and intangible cultural heritage.