There are two key techniques in reverse engineering, the numeralization and surface reconstruction of 3D objects.

物体的数字化技术及曲面重构技术是程的两核心问。

Hereinto, the numeralization of 3D prototype is the firstly important process.The accuracy of the objects’ numeralization will influence the quality of the digital reconstruction of the objects.

原型的数字化技术是程中的首要环节，其得到的原型数据精度将直接影响到重建模型的质量。