NDLI: High quality per-pixel shading in texture-based volume rendering

Content Provider	IEEE Xplore Digital Library
Author	Jie Zheng Hongbing Ji
Copyright Year	2005
Description	Author affiliation: Sch. of Electron. Eng., Xidian Univ., Xi'an (Jie Zheng; Hongbing Ji)
Abstract	We present a novel technique for texture-based volume rendering that provides the image with high quality based on the per-pixel shading. Our method produces accurate shading for the arbitrary and dynamically changing directional light source. This is achieved by using the normalized gradient during the lighting and calculating the shading on each pixel. Additionally, we present a new technique circumventing the huge memory consumption of previous approaches by estimating the gradient on the fly. This algorithm is unique in that it utilizes sophisticated PC graphics hardware functionality, especially the fragment program, to enable fast data loading and interactive rendering. Several examples are given to illustrate its effectiveness on real clinic 3D CT datasets
Starting Page	1258
Ending Page	1261
File Size	1781741
Page Count	4
File Format	PDF
ISBN	0780394224
DOI	10.1109/ICNNB.2005.1614840
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image quality Interpolation Computed tomography Computational modeling Data visualization Computer graphics Rendering (computer graphics) Grid computing Hardware Light sources
Content Type	Text
Resource Type	Article

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