The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Publications Copernicus
Articles | Volume XL-4/W5
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4/W5, 7–11, 2015
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4/W5, 7–11, 2015

  11 May 2015

11 May 2015


S. J. Tang2, Q. Zhu2,3, W. W. Wang1, and Y. T. Zhang2 S. J. Tang et al.
  • 1Shenzhen research center of digital city engineering, Shenzhen, P.R. China
  • 2State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, Wuhan, P.R. China
  • 3Faculty of Geosciences and Environmental Engineering of Southwest Jiaotong University, Chengdu, P.R. China

Keywords: IFC, Geometry-Semantics-based, Topology Derivation, Navigation

Abstract. With the goal to achieve an accuracy navigation within the building environment, it is critical to explore a feasible way for building the connectivity relationships among 3D geographical features called in-building topology network. Traditional topology construction approaches for indoor space always based on 2D maps or pure geometry model, which remained information insufficient problem. Especially, an intelligent navigation for different applications depends mainly on the precise geometry and semantics of the navigation network. The trouble caused by existed topology construction approaches can be smoothed by employing IFC building model which contains detailed semantic and geometric information. In this paper, we present a method which combined a straight media axis transformation algorithm (S-MAT) with IFC building model to reconstruct indoor geometric topology network. This derived topology aimed at facilitating the decision making for different in-building navigation. In this work, we describe a multi-step deviation process including semantic cleaning, walkable features extraction, Multi-Storey 2D Mapping and S-MAT implementation to automatically generate topography information from existing indoor building model data given in IFC.