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利用GPU实现单层螺旋CT的三维图像重建 被引量:4

Single-Slice Helical CT Three-Dimensional Image Reconstruction Using GPU
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摘要 CT数据的获取过程和CT图像的重建过程与图形学的渲染过程极其相似,因此利用图形处理器(GPU)来加速CT重建算法成为了近年来CT研究的热点之一.本文根据单层螺旋CT数据的特点,构造了"平行-扇束"投影模式,实现了基于GPU的单层螺旋CT的三维图像重建算法.数值实验表明,与CPU上的分层重建相比重建速度提高10倍以上. CT scanning and CT reconstruction are similar to rendering process of computer graphics,so using GPU to accelerate CT reconstruction algorithm become one of the focuses of the CT study in recent years.Based on features of Single-slice helical CT,we construct the parallel perspective projection model,and using GPU to accelerate the single-slice helical CT three-dimensional image reconstruction.Numerical experiments show that reconstruction efficiency improved by ten times than conventional algorithm.
出处 《电子学报》 EI CAS CSCD 北大核心 2011年第1期76-81,共6页 Acta Electronica Sinica
基金 国家自然科学基金(No.60971131 No.60972140) 北京市自然科学基金(No.3102009)
关键词 单层螺旋CT 图形处理器 三维重建 投影模式 single-slice helical CT graphic processing unit three-dimensional reconstruction projection model
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参考文献13

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二级参考文献9

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共引文献10

同被引文献42

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