FAST RECONSTRUCTION METHOD BASED ON COMMON UNIFIED DEVICE ARCHITECTURE(CUDA)FOR MICRO-CT  

作　　者：GUOTAO QUAN TANGYOU SUN YONG DENG 

机构地区：[1]Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics—Huazhong University of Science and Technology Wuhan 430074,P.R.China

出　　处：《Journal of Innovative Optical Health Sciences》2010年第1期39-43,共5页创新光学健康科学杂志（英文）

基　　金：the financial support by National Nature Science Foundation of China(Grant No.30070261).

摘　　要：Three-dimensional image reconstruction with Feldkamp,Davis,and Kress(FDK)algorithm is the most time consuming part in Micro-CT.The parallel algorithm based on the computer cluster is capable of accelerating image reconstruction speed;however,the hardware is very expensive.In this paper,using the most current graphics processing units(GPU),we present a method based on common unified device architecture(CUDA)for speeding up the Micro-CT image reconstruction process.The most time consuming filtering and back-projection parts of the FDK algorithm are parallelized for the CUDA architecture.The CUDA-based reconstruction speed and image qualities are compared with CPU results for the projecting data of the Micro-CT system.The results show that the 3D image reconstruction speed based on CUDA is ten times faster than the speed with CPU.In conclusion the FDK algorithm based on CUDA for Micro-CT can reconstruct the 3D image right after the end of data acquisition.

关 键 词：MICRO-CT FDK CUDA GPU 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]