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An Object Selection Method through Adaptive Casting in Immersive Virtual Reality

몰입 가상현실 환경에서 적응형 캐스팅을 통한 객체 선택 방법

  • 이준송 (건국대학교 산업공학과) ;
  • 이준 (호서대학교 컴퓨터 정보 공학부)
  • Received : 2019.08.19
  • Accepted : 2019.09.10
  • Published : 2019.09.28

Abstract

In the immersive virtual reality environment, we can select and manipulate various virtual objects. in order to select a virtual object, we generally use Ray-casting method that fires a virtual line in user's view and selects an object when the line and the object match, or Cone-casting method that is widely used to select multiple objects at the same time. However, since the virtual objects used in CAD are composed of small and complex objects in detail, when selecting an object in the user's view by existing methods, there occurs a ambiguity problem that needs additional realignment operation even though an object is selected as a group. in this paper, even if a virtual object is composed of several small virtual objects, it calculates the spatial and logical relationship among objects and expands or shrinks desired objects, so that the user can quickly and accurately select a desired object. in order to evaluate the proposed method, performance comparison were performed using Our and Ray-Casting and Cone-Casting methods. Experimental results show that the proposed method has the fastest speed and the highest accuracy when selecting the desired objects.

Keywords

Virtual Environment;Selection;Ray-casting;Occlusion;Virtual Object

Acknowledgement

Supported by : 한국연구재단

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