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

三物体的数字化技术及曲面重构技术是逆向工程的两核心问题。

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.

三原型的数字化技术是逆向工程中的首，其得到的原型数据精度将直接影响到重建模型的质量。