三维文物数字化重构技术

针对三维文物的重构，提出一种基于笛卡尔网格的三维重构技术. 该重构技术以六面体网格作为最基本单元，采用对实体进行逐层切割获得截面域轮廓线的剖分算法，并借助计算机图形学的扫描线填充算法对文物进行三维成像重构. 同时，为实现对文物的快速显示以及美观效果，将描述文物的网格单元公共面进行删除，大大缩短了计算时间和减少了存储空间. 通过鼓凳和藤条花瓶的数值算例验证了该技术的可行性. 

Three-Dimensional Digital Reconstruction Technology of Cultural Relics

For the three-dimensional reconstruction of cultural relics, a kind of three-dimensional reconstruction technology was proposed based on Cartesian grid. The reconstruction technology adopted the hexahedron grid as the basic unit, then calculated solid models contour lines layer by layer and made use of the scanning line filling algorithm of computer graphics to reconstruction the three-dimensional imaging. Meanwhile, the public surfaces of grid elements were removed in the drawing process to implement quick blanking display of meshes and beautiful effect, and it also would reduce the computation time and storage space. The feasibility of the technology was verified through the numerical simulation of drum stool and rattan vase.