한국컴퓨터그래픽스학회논문지 (Journal of the Korea Computer Graphics Society)

  • 제16권4호
  • /
  • Pages.41-50
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  • 2010
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  • 1975-7883(pISSN)
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  • 2383-529X(eISSN)
한국컴퓨터그래픽스학회 (Korea Computer Graphics Society)
권호 표지

RMF을 이용한 계층적 B-spline 곡선의 다단계 편집기법

Multilevel Editing for Hierarchical B-spline Curves using Rotation Minimizing Frames

  • 장츠 (동국대학교 멀티미디어공학과) ;
  • 윤승현 (동국대학교 멀티미디어공학과) ;
  • 이지은 (조선대학교 컴퓨터공학부)
  • Zhang, Ci (Department of Multimedia Engineering, Dongguk University) ;
  • Yoon, Seung-Hyun (Department of Multimedia Engineering, Dongguk University) ;
  • Lee, Ji-Eun (School of Computer Engineering, Chosun University)
  • 투고 : 2010.04.28
  • 심사 : 2010.11.08
  • 발행 : 2010.12.01
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초록

본 논문에서는 계층적 B-spline곡선 (hierarchical B-spline curve)에 대한 새로운 다단계 편집 (multilevel editing)기법을 제안한다. 각 단계 변위함수 (displacement function)의 제어점 (control point)은 이전 단계 곡선위의 노드점 (nodal point)에서 계산되는 Rotation Minimizing Frame (RMF) [1]을 기준으로 표현된다. 이전 단계에서 곡선의 형상이 편집되면 해당노드 점에서 새로운 RMF가 계산되고, 현재 단계에서 변위함수의 제어점들은 새로운 RMF를 기준으로 적용되어, 현재 단계의 곡선은 이전 단계의 곡선에 대한 상대적인 세부 형상을 유지하게 된다. 본 논문에서는 다양한 형태의 곡선에 대한 다단계 편집실험을 통해 제안된 기법의 효율성과 안정성을 입증한다.

We present a new technique for multilevel editing of hierarchical B-spline curves. At each level, control points of a displacement function are expressed in the rotation minimizing frames (RMFs) [1] which are computed on nodal points of the curve at previous level. When the curve is edited at previous level, the corresponding RMFs are updated and the control points of the displacement function at current level are applied to the new RMFs, which maintains the relative details of the curve at current level to those of previous level. We demonstrate the effectiveness and robustness of the proposed technique using several experimental results.

키워드

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