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반응-확산 모델을 이용한 헤드컷 스타일 생성 방법

Hedcut-Style Rendering Using Reaction-Diffusion Model

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초록

This paper presents non-photorealistic rendering methods of hedcut-style effects by using reaction-diffusionmodel. Reaction-diffusion model is a mathematical model proposed by Turing to describe the biologicalformation of natural patterns but we adapted this model as a tonal depiction method of stipples and curvepatterns. According to the input image brightness, this model generates stipple patterns of black or white dots fornear-black or near-white image area while it produces curve patterns for middle gray image area. Our methoduses simple pre-processing step to compensate brightness and contrast of input image. We compare previousmethod and hand-made hedcut artwork with our results. Our works can be applied in game application andstylized rendering area.

Abstract

This paper presents non-photorealistic rendering methods of hedcut-style effects by using reaction-diffusionmodel. Reaction-diffusion model is a mathematical model proposed by Turing to describe the biologicalformation of natural patterns but we adapted this model as a tonal depiction method of stipples and curvepatterns. According to the input image brightness, this model generates stipple patterns of black or white dots fornear-black or near-white image area while it produces curve patterns for middle gray image area. Our methoduses simple pre-processing step to compensate brightness and contrast of input image. We compare previousmethod and hand-made hedcut artwork with our results. Our works can be applied in game application andstylized rendering area.

참고문헌 (13)

  1. Jan Eric Kyprianidis, "State of the Art: A Taxonomy of Artistic Stylization Techniques for Images and Video", IEEE Transactions on Visualization and Computer Graphics, 19(5), pp.866~885 (2013)
  2. 권윤미, "게임 캐릭터에 대한 특징 기반의 연필 렌더링", 한국컴퓨터게임학회논문지, 25(1), pp.21~29 (2012), (사)한국컴퓨터게임학회[DOI]
  3. 양희경, "예술적인 게임 동영상을 위한 연필 렌더링 기법", 한국컴퓨터게임학회논문지, 26(4), pp.145~152 (2013), (사)한국컴퓨터게임학회
  4. 주헌식, "비사실적 렌더링 기법에 의한3D 카툰 애니메이션 제작에 관한 연구", 한국컴퓨터게임학회논문지, 26(4), pp.179~185 (2013), (사)한국컴퓨터게임학회
  5. SungYe Kim, "Automated Hedcut Illustration Using Isophotes", Lecture Notes in Computer Science, 10th International Symposium on Smart Graphics, 6133, pp.172~183 (2010)
  6. Minjung Son, "Structure Grid for Directional Stippling", Graphical Models, 73(3), pp.74~87 (2011)
  7. Victor Ostromoukhov, "Digital Facial Engraving", Proceedings of SIGGRAPH'99, in Computer Graphics Proceedings, Annual Conference Series, pp.417~424 (1999)
  8. A. M. Turing, "The Chemical Basis of Morphogenesis", Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 237(641), pp.37~72 (1952)
  9. Greg Turk, "Generating Textures on Arbitrary Surfaces Using Reaction-Diffusion", Computer Graphics, 25(4), pp.289~298 (1991)
  10. Andrew Witkin, "Reaction-diffusion textures", Computer Graphics, 25(3) (1991)
  11. Kui-Yip Lo, "Interactive Reaction-Diffusion on Surface Tiles", Pacific Conference on Computer Graphics and Applications, pp.65~74 (2007)
  12. Hans Meinhardt, "Models of Biological Pattern Formation" (1982), Academic Press
  13. J. D. Murray, "Mathematical Biology" (2003)

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