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

三维物体字化及曲面重是逆向工程两核心问题。

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.

三维原字化是逆向工程中首要环节，其得到原据精度将直接影响到重建模质量。