NDLI: GPU-based Volume Rendering for Medical Image Visualization

Content Provider	IEEE Xplore Digital Library
Author	Yang Heng Lixu Gu
Copyright Year	2005
Description	Author affiliation: Shanghai Jiao Tong Univ. (Yang Heng; Lixu Gu)
Abstract	During the quick advancements of medical image visualization and augmented virtual reality application, the low performance of the volume rendering algorithm is still a "bottle neck". To facilitate the usage of well developed hardware resource, a novel graphics processing unit (GPU)-based volume ray-casting algorithm is proposed in this paper. Running on a normal PC, it performs an interactive rate while keeping the same image quality as the traditional volume rendering algorithm does. Recently, GPU-accelerated direct volume rendering has positioned itself as an efficient tool for the display and visual analysis of volume data. However, for large sized medical image data, it often shows low efficiency for too large memories requested. Furthermore, it always holds a drawback of writing color buffers multi-times per frame. The proposed algorithm improves the situation by implementing ray casting operation completely in GPU. It needs only one slice plane from CPU and one 3Dtexture to store data when GPU calculates the two terminals of the ray and carries out the color blending operation in its pixel programs. So both the rendering speed and the memories consumed are improved, and the algorithm can deal most medical image data on normal PCs in the interactive speed
Starting Page	5145
Ending Page	5148
File Size	709416
Page Count	4
File Format	PDF
ISBN	0780387414
DOI	10.1109/IEMBS.2005.1615635
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rendering (computer graphics) Biomedical imaging Visualization Virtual reality Neck Hardware Graphics Image quality Displays Data analysis 3Dtexture GPU acceleration direct volume rendering medical image data
Content Type	Text
Resource Type	Article

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