Definition of 3D Modeling Level of Detail in BIM Regeneration Through Reverse Engineering - Case Study on 3D Modeling Using Terrestrial LiDAR -

역설계를 통해 BIM 구축시에 3D 모델링에 대한 세밀도(LoD) 정립 - 지상 LiDAR 활용한 3D 모델링 연구 중심 -

  • 채재현 (서울시립대학교 공간정보공학과(GSE)) ;
  • 이지영 (서울시립대학교 공간정보공학과)
  • Received : 2017.12.18
  • Accepted : 2017.12.19
  • Published : 2017.12.31


When it comes to set up the BIM through the reverse engineering, the level of detail(LoD) required for finalized outcomes is different from each purpose. Therefore, it is necessary to establish some concrete criteria which describe the definition of LoDs on 3D modeling for the purpose of each reverse engineering. This research shows the criteria of the 1) positional accuracy, 2) generalization level, 3) scale level, 4) scope of description, and 5) the area available for application by classifying LoD from 1 to 6 on 3D modeling for each purpose of reverse engineering. Moreover, through applying those criteria for the 3D point cloud dataset of building made by terrestrial LiDAR, this research finds out the working hour of 3D modeling of reverse engineering by each LoDs according to defined LoD criteria for each level. It is expected that those findings, how those criteria of LoD on reverse engineering are utilized for modeling-workers to decide whether the outcomes can be suitable for their budget, applicable fields or not, would contribute to help them as a basic information.


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