Title :
A Parallel Reconstruction Algorithm for Spiral Cone-Beam Transmission CT
Author :
Xue, Guowei ; Zhang, Yan
Author_Institution :
Key Lab. of Network Oriented Intell. Comput., Harbin Inst. of Technol., Shenzhen, China
Abstract :
Katsevich proposed the first theoretically exact reconstruction formula for spiral cone-beam CT which is computation quite intensive. The main bottleneck is that the memory storing the projection data has to be accessed for many times. Given that one single source position s belongs to S different ¿-intervals, and the corresponding ¿-line contains N voxels, then the projection data at position s has to be accessed for O(S×N) times. In this work, we propose a parallel algorithm which can reduce the times accessing the memory down to one.
Keywords :
computerised tomography; image reconstruction; parallel algorithms; memory storage; parallel reconstruction algorithm; projection data; spiral cone-beam transmission CT; Computed tomography; Computer networks; Concurrent computing; Geometry; Image reconstruction; Intelligent networks; Laboratories; Parallel algorithms; Reconstruction algorithms; Spirals; Hardware Acceleration; Parallel Algorithm; Spiral Cone-Beam CT Image Reconstruction;
Conference_Titel :
Communications and Mobile Computing (CMC), 2010 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-6327-5
Electronic_ISBN :
978-1-4244-6328-2
DOI :
10.1109/CMC.2010.39
