A Systematic Construction Process of 3D Database for Realtime Virtual Simulation of Transportation Equipments

수송장비의 실시간 가상 시뮬레이션을 위한 3차원 데이터베이스의 체계적인 구축 프로세스

  • Kim, Bo-Hyun (Manufacturing and Information Technology Laboratory, KITECH)
  • 김보현 (한국생산기술원 지능형생산시스템팀)
  • Received : 20021000
  • Accepted : 20030300
  • Published : 2003.06.30

Abstract

Recently, virtual reality technologies have been rapidly developed and realtime virtual simulation methods have been extensively employed for several application areas such as game, sports, manufacturing, military, and so on. A 3D database in realtime virtual simulation plays a key role because it makes users feel reality in virtual space. In a application view of 3D database, a systematic construction approach is required to reduce its construction time and increase its quality. However, many researches have been mostly focused on realtime graphic issues and its key technologies. In virtual simulation of transportation equipments, this paper proposes a systematic construction process of 3D database consisting of four stages as follows: 1) determine the activity space of a equipment, 2) collect data related to 3D database construction, 3) make a 3-dimensional modeling strategy, and 4) generate and evaluate a 3D model. This paper also introduces a new procedure of 3D environment modeling, which summarizes and expands our modeling experiences, to be used as a modeling guide.

Keywords

References

  1. 최병규, 박범철, 류호열. (2002), 가상공장 시뮬레이터, 한국 CAD/CAM 학회 워크샵-전통산업의 IT화를 위한 e-Manufacturing, pp.235-245
  2. EON Reality Inc. (2001), Fundamentals of Real Time Graphics. \hite Paper of EON Reality Inc., USA www.eonreality.com/products/files/Intro_to_RealtimeGraphics.pdf
  3. Evans and Sutherland. (2001), The Simulation World is now Open to Everyone, Simulation Seminar on 3D Realtime Visual & Sensor, Taejon, Korea
  4. Garland, Michael and Heckbert, Paul S. (1998), Simplifying Surfaces with Color and Texture using Quadric Error Metrics, IEEE Visualization 98, www-2.cs. cmu.edu/afs/cs/ user/garland/www/Papers/quadric2.pdf
  5. Graham, L., Dahman, N., and Herman, B. (2001), Enterprise Digital Terrain Modeling, White Paper of Z/I Imaging Co., USA, www.ziimaging.com/News com/News/OrherDocs/edtm.pdf
  6. Heckbert, P. S. and Garland. (1997), M., Survey of Polygonal Surface Simplification Algorithm, Technical Report CS Dept., Carnegie Mellon University, USA
  7. Huber, D. F. and Hebert M.(1999). A New Approach to 3-D Terrain Modeling, Proceedings of the 1999 IEEE/RSJ International Conference on lntelligent Robotics and Systems (IROS'99), IEEE. pp.1121-1127
  8. Lin. E., Minis, I., Nau, D.S. Nau. and Regli, W.C (1995). Contribution to Virtual Manufacturing Background Research - Phase II. Institute for Systems Research, University of Maryland. USA
  9. Mezera. D., Chen J., Chou, C. L., Marsolek, J., and Vonderohe. (1997), A., Primary Spatial Reference Framework Report. Campus Map Project, University of Winconsin Madison, USA
  10. Miller. J. R. (2000), Real-Time Terrain Modeling for Autonomous Helicopter High, Ph.D Thesis Proposal, The Robotics lnstitute, Carnegie Mellon University
  11. Muhar,A. (2001), Three-dimensional modeling and visualization of vegetarian for landscape simulation, Landscape and Urban Planning, Vol. 54, pp.5-17
  12. National Geography Institute, Homepage of NGI: www.ngi.gc.kr, 2002
  13. National Oceanographic Research Institute, Homepage of NORl:www.nori.go.kr, 2002
  14. Prakash. Edmond C (1997), Volume Terrain Modeling and Rendering for Visual Flythrough, Technical Report, cvc970415 ,Center for Visual Computing and Department of Computer Science, SUNY, USA
  15. Ryu, B. H. and Han. S. H. (2002), Construction of Real-time Terrain Model for Flight Simlation, Proceedings of Korea Society of CAD/CAM Engineers. pp.267-274
  16. US GroIogical Survey National Mapping Division, Standards for Digital Elevation Models. Netional Mapping Program Technical lnstructions. USA, 1998