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| A Hard Accelerated Algorithm for EWA Splatting Based on Modern GPU |
| QIN Hong-xing,YANG Jie,GUO Lü, TANG Wei |
(Institute of Image Processing & Pattern Recognition, Shanghai Jiaotong University,
Shanghai 200240, China) |
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Abstract This paper proposed an accelerated algorithm for EWA volume Splatting based on modern graphic processing unit (GPU). It mainly made use of point sprite, frame buffer object and programmable function of GPU. In the algorithm, sampling points are directly regarded as proxy geometry, three dimension texture coordinates at pixels are computed by ray tracing in GPU and Gaussian filter is replaced by an approximate filter.The experimental results demonstrate that the algorithm can be used in high quality and interactive visualization.
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Received: 10 December 2007
Published: 28 December 2008
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