The KIPS Transactions:PartA (정보처리학회논문지A)

Korea Information Processing Society (한국정보처리학회)
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Stereoscopic Visualization of Buildings Using Horizontal and Vertical Projection Systems

수평 및 수직형 프로젝션 시스템을 이용한 건물의 입체 가시화

  • 이선민 (이화여자대학교 대학원 컴퓨터학과) ;
  • 최수미 (이화여자대학교 컴퓨터 그래픽스/가상현실 연구센터) ;
  • 김명희 (이화여자대학교 컴퓨터학과)
  • Published : 2003.06.01
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Abstract

In this paper, we constructed horizontal and vertical virtual spaces using the projection table and the projection wall. We then implemented a system that stereoscopically visualizes three-dimensional (3D) buildings in the virtual environments in accordance with the user's viewing point. The projection table, a kind of horizontal display equipment, is effectively used in reproducing operations on a table or desk as well as in areas that require bird-eye views because its viewing frustum allows to view things from above. On the other hand, the large projection wall, a kind of vertical display equipment, is effectively used in navigating virtual spaces because its viewing frustum allows to take a front view. In this paper, we provided quick interaction between the user and virtual objects by representing major objects as detail 3D models and a background as images. We also augmented the reality by properly integrating models and images with user's locations and viewpoint in different virtual environments.

본 논문에서는 프로젝션 테이블(the projection table)과 프로젝션 월(the projection wall)을 이용하여 수평 및 수직형 가상 공간을 구축하고, 이러한 가상 환경에서 삼차원 건물을 사용자의 시점에 따라 입체적으로 가시화하는 시스템을 구현하였다. 수평형 디스플레이 장비인 프로젝션 테이블은 위에서 내려다 보는 형태의 뷰잉 프러스텀(viewing frustum)을 갖기 때문에 책상이나 테이블에서의 작업을 재현하거나 bird-eye view가 필요한 응용분야에서 효과적으로 사용되어진다. 반면에 수직형 디스플레이 장비인 대형 프로젝션 월은 정면에서 바라보는 형태의 뷰잉 프러스텀을 갖기 때문에 가상 공간을 네비게이션 할 때 보다 효과적으로 사용되어진다. 본 논문에서는 주요 객체는 세밀한 삼차원 모델로 생성하고 배경은 영상을 이용함으로써 사용자와 가상 객체간의 빠른 상호작용을 제공하도록 하였으며, 모델과 영상이 합성된 결과를 상이한 가상환경에서 사용자의 위치 및 시점과 연동하여 입체적으로 보여줌으로써 사용자의 현실감을 증진시키도록 하였다.

Keywords

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