Using Graphics Processing Units to Parallelize the FDK Algorithm for Tomographic Image Reconstruction
Using Graphics Processing Units to Parallelize the FDK Algorithm for Tomographic Image Reconstruction作者机构：Politechnical Institute of Rio de Janeiro State University Nova Friburgo-RJ 28625-570 Brazil Physics Institute of Rio de Janeiro State University Rio de Janeiro 20550-900 Brazil Brazilian center for physical research Rio de Janeiro 22290-180 Brazil
出 版 物：《Journal of Chemistry and Chemical Engineering》 (化学与化工（英文版）)
年 卷 期：2012年第6卷第8期
页 面：760-768页
学科分类：08[工学] 081201[工学-计算机系统结构] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）]
主 题：Computed tomography images reconstruction FDK algorithm GPUs CUDA-C parallel processing.
摘 要：The paper presents the implementation of a parallel version of FDK （Felkamp, David e Kress） algorithm using graphics processing units. Discussion was briefly some elements the computed tomographic scan and FDK algorithm; and some ideas about GPUs （Graphics Processing Units） and its use in general purpose computing were presented. The paper shows a computational implementation of FDK algorithm and the process of parallelization of this implementation. Compare the parallel version of the algorithm with the sequential version, used speedup as a performance metric. To evaluate the performance of parallel version, two GPUs, GeForce 9400GT （16 cores） a low capacity GPU and Quadro 2000 （192 cores） a medium capacity GPU was reached speedup of 3.37.
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