Journal of the Korea Computer Graphics Society (한국컴퓨터그래픽스학회논문지)

Korea Computer Graphics Society (한국컴퓨터그래픽스학회)
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Image Space Occlusion Shading Model for Iso-surface Volume Rendering

등위면 볼륨렌더링을 위한 이미지 공간 폐색 쉐이딩 모델

  • Kim, Seokyeon (Dept. of Computer Engineering, Sejong University) ;
  • You, Sangbong (Dept. of Computer Engineering, Sejong University) ;
  • Jang, Yun (Dept. of Computer Engineering, Sejong University)
  • 김석연 (세종대학교 컴퓨터공학과) ;
  • 유상봉 (세종대학교 컴퓨터공학과) ;
  • 장윤 (세종대학교 컴퓨터공학과)
  • Received : 2014.09.26
  • Accepted : 2014.11.06
  • Published : 2014.12.01
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Abstract

The volume rendering has become an important technique in many applications along with hardware development. Understanding and perception of volume visualization benefit from visual cues which are available from shading. Better visual cues can be obtained from global illumination models but it's huge amount of computation and extra GPU memory need cause a lack of interactivity. In this paper, in order to improve visual cues on volume rendering, we propose an image space occlusion shading model which requires no additional resources.

볼륨렌더링은 주로 의학 및 과학 분야에서 사용되는 기법이었으나, 하드웨어의 발달과 더불어 다양한 응용프로그램에서의 적용이 가능해짐에 따라 볼륨렌더링에 대한 관심이 증가하고 있다. 볼륨렌더링의 시각화에 있어서 쉐이딩은 물체의 깊이 정보를 효율적으로 전달하여 시각적 인지에 큰 도움이 된다. 전역조명을 사용하면 시각적 인지를 향상시킬 수 있지만, 많은 GPU 메모리의 사용과 긴 연산시간으로 인해 프로그램과의 상호작용에 영향을 미친다. 본 논문에서는 렌더링 속도의 저하를 최소화하며 볼륨렌더링에 사실적인 쉐이딩을 적용하기 위하여 이미지 공간 폐색 쉐이딩 모델을 제안하고자 한다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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