A Versatile Optical Model for Hybrid Rendering of Volume Data

	A Versatile Optical Model for Hybrid Rendering of Volume Data
	Yang, Fei 1; Li, Qingde 2; Xiang, Dehui 1; Cao, Yong 3; Tian, Jie 1
发表期刊	IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
	2012-06-01
卷号	18 期号:6 页码:925-937
文章类型	Article
摘要	In volume rendering, most optical models currently in use are based on the assumptions that a volumetric object is a collection of particles and that the macro behavior of particles, when they interact with light rays, can be predicted based on the behavior of each individual particle. However, such models are not capable of characterizing the collective optical effect of a collection of particles which dominates the appearance of the boundaries of dense objects. In this paper, we propose a generalized optical model that combines particle elements and surface elements together to characterize both the behavior of individual particles and the collective effect of particles. The framework based on a new model provides a more powerful and flexible tool for hybrid rendering of isosurfaces and transparent clouds of particles in a single scene. It also provides a more rational basis for shading, so the problem of normal-based shading in homogeneous regions encountered in conventional volume rendering can be easily avoided. The model can be seen as an extension to the classical model. It can be implemented easily, and most of the advanced numerical estimation methods previously developed specifically for the particle-based optical model, such as preintegration, can be applied to the new model to achieve high-quality rendering results.
关键词	Direct Volume Rendering Optical Models Isosurfaces Preintegration Ray Casting Transfer Function
WOS标题词	Science & Technology ; Technology
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Software Engineering
WOS记录号	WOS:000302729900009
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/4068
专题	中国科学院分子影像重点实验室
通讯作者	Tian, Jie
作者单位	1.Chinese Acad Sci, Inst Automat, Med Image Proc Grp, Beijing 100190, Peoples R China 2.Univ Hull, Dept Comp Sci, Kingston Upon Hull HU1 7RX, N Humberside, England 3.Virginia Polytech Inst & State Univ, Blacksburg, VA 24060 USA
第一作者单位	中国科学院自动化研究所
通讯作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Yang, Fei,Li, Qingde,Xiang, Dehui,et al. A Versatile Optical Model for Hybrid Rendering of Volume Data[J]. IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS,2012,18(6):925-937.
APA	Yang, Fei,Li, Qingde,Xiang, Dehui,Cao, Yong,&Tian, Jie.(2012).A Versatile Optical Model for Hybrid Rendering of Volume Data.IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS,18(6),925-937.
MLA	Yang, Fei,et al."A Versatile Optical Model for Hybrid Rendering of Volume Data".IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 18.6(2012):925-937.

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