Abstract: The digital of cultural heritage provides new ideas for the protection, inheritance and development of cultural heritage, using the method of computer aid design and digital to convert cultural heritage, the point cloud data of relic is obtained by 3D scanner, and a streamlined model of cultural point cloud data is established, the reconstruction method of three-dimensional model of cultural relic is studied, the texture mapping mechanism of three-dimensional model of cultural relics is constructed, and the virtual display scheme of cultural relics are presented based on Web technology, and the digitized technical route of cultural relics are constructed. At last, the paper describes the key technology of research by the bronze bull cup.

Key words: computer aided design, cultural heritage, digitalization

摘要： 文化遗产的数字化为文化遗产的保护、传承和发展提供了新的思路，利用计算机辅助设计和数字化方法将文化遗产进行数字化转换，基于三维扫描仪获取文物点云数据，建立了文物点云数据精简模型，研究了文物三维模型重建方法，构建了文物三维模型的纹理映射机制，给出基于Web技术的文物虚拟展示方案，构建了文物数字化技术路线，最后结合青铜牛尊案例对所研究的关键技术进行说明。

关键词: 计算机辅助设计, 文化遗产, 数字化