Accelerated cone beam CT reconstruction based on OpenCL - Details

Author：

Wang, Bo (Wang, Bo.) (Scholars：王波) | Zhu, Lei (Zhu, Lei.) | Jia, Kebin (Jia, Kebin.) (Scholars：贾克斌) | Zheng, Jie (Zheng, Jie.)

Indexed by：

EI Scopus

Abstract：

Open　Computing　Language　(OpenCL)　is　a　fundamental　technology　for　cross-platform　parallel　programming.　The　emerging　of　OpenCL　provides　portable　and　efficient　access　to　the　power　of　modern　processors.　This　revolutionary　new　technology　is　applied　to　accelerate　the　reconstruction　of　cone　beam　computed　tomography　(CBCT)　on　Graphics　Processing　Unit　(GPU)　in　this　paper.　An　OpenCL-based　implementation　of　the　Feldkamp-DavisKress　(FDK)　algorithm　is　presented.　The　required　transformations　to　parallelize　the　algorithm　for　the　OpenCL　architecture　are　also　explained.　Comparing　to　the　conventional　CPU-based　implementation,　the　proposed　method　reaches　an　over　57　times　speedup.　Experimental　results　show　a　great　performance　boost,　which　can　pave　the　way　for　widespread　application　and　new　conceptual　innovation　of　CBCT.　Besides,　the　feasibility　and　potential　of　OpenCL-based　implementation　are　also　indicated.　©　2010　IEEE.

Keyword：

Image reconstruction Computer graphics equipment Graphics processing unit Parallel programming Computerized tomography Computer graphics Parallel processing systems Program processors Image analysis

Author Community：

[ 1 ] [Wang, Bo]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 2 ] [Zhu, Lei]Corporate Technology, Siemens Ltd. China, Beijing, China
[ 3 ] [Jia, Kebin]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 4 ] [Zheng, Jie]Corporate Technology, Siemens Ltd. China, Beijing, China