Reconstruction of 3D building model based on the information in floor plan

ABSTRACT. This paper attempts to reconstruct the 3D model of buildings based on the information of building components and internal space in the floor plan. For this purpose, a pre-processing algorithm was designed to eliminate the redundancy lines in the floor plan. Then, the window and door extraction methods were put forward to obtain the parameters of building components and restore the wall integrity. After that, the internal subspace was detected through the closed-loop self-check algorithm. Finally, the proposed reconstruction method was verified through a case study on a hotel floor plan. The results show that our method can effectively reconstruct 3D models of buildings in smart cities.