Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (5): 30-34.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Pre-Integrated Volume Rendering Based on Shear-Warp

Li Bin1  Tian Lian-fang1  Chen Ping2  Mao Zong-yuan1   

  1. 1. School of Automation Science and Engineering , Soulh China Univ. of Tech. , Guangzhou 510640 , Guangdong , China;2. Dept. of Nuclear Medicine , the First Mfiliated Hospital of Guangzhou Medical College , Guangzhou 510120 , Guangdong , China
  • Received:2006-06-13 Online:2007-05-25 Published:2007-05-25
  • Contact: 李彬(1979-)，男，博士生，主要从事医学可视化、图像处理与模式识别方面的研究. E-mail:binleemmboy@yahoo.com.cn
  • About author:李彬(1979-)，男，博士生，主要从事医学可视化、图像处理与模式识别方面的研究.
  • Supported by:

    国家自然科学基金资助项目(30570458) ;广东省自然科学基金资助项目(05006530) ;广州市番民区科技攻关项目(2005-Z-55-1 )

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Abstract:

In order to improve the quality of the 3 D medical image reconstructed via Shear-W arp , an improved pre-integrated volume rendering (IPVR) algorithm based on Shear-Warp is proposed , in which the volume rendering equation and the light model are adopted to determine the final re-sampling value and to construct an intermediate image. Thus , the aliasing artifacts resulting from the under-sampling in the standard Shear-W arp algorithm can be avoided by the pre-integrated volume rendering technology. Experimental results demonstrate that the proposed method meets the requirement of real-time volume rendering with good display performance.

Key words: pre-integrated volume rendering, Shear-Warp, optical model, light model