Abstract: Wire-frame model usually appears as intermediate model in 3D reconstruction. However, the
ambiguity and oversimplified information existing in this kind of model significantly restrict its
practical application. It tends to be transformed into surface model and solid model. This paper mainly
focuses on surface construction of 3D reconstruction, and the key points during this process are
discussed. According to the source object of 3D reconstruction, this paper summarizes surface
construction for wire-frame from three aspects: wire-frame transforming directly into surface model,
reconstructing 3D model from a single drawing or image by wire-frame, and reconstructing 3D model
from multiple projection. And on this basis, it points out the problems to be solved and the development
direction for future researches.

Key words: 3D reconstruction, wire-frame model, surface construction, surface model