三维颅骨模型获取方法研究

颅面复原是一种对人类的颅骨进行面部容貌复原的技术，该技术以人类学、法医学、解剖学中的头骨与面貌相互关系规律为科学依据，广泛应用于考古、刑侦等领域。其中获取三维颅骨模型是实现复原的第一步，颅骨模型的准确与否会直接影响到将来颅面复原的准确性。文中主要介绍了两种获取三维颅骨模型的方法，一种是对cT图像进行面绘制三维重构，另一种是使用三维扫描仪获取三维颅骨模型。之后对获取的颅骨模型建立法兰克福坐标系。实验表明，通过这两种方法获取的颅骨模型为颅面复原提供了良好的颅骨原始数据。

Study on Acquisition Approaches for Three Dimensional Skull Model

Craniofacial reconstruction is a facial appearance restoration technology to the human skulls. The technology is on the scientific basis of the relationship of skull and face inforensic, anthropology and anatom, which is widely applied in many fields. To obtain the 3 D skull model is the first step of restoration. Skull model is accurate or not will directly affect the accuracy of the craniofacial restoration in the future. In this paper, mainly introduce two methods of getting 3D skull model：one is surface rendering 3D reconstruction of the CT images, another is to use 3D scanner for three dimensional skull model. Then, establish Frankfurt coordinate system of 3 D skull model. Experimental results demonstrate that two methods of getting 3D skull model provide good original data for craniofacial reconstruction.