Title :
Implementation of FDK Reconstruction Algorithm in Cone-Beam CT Based on the 3D Shepp-Logan Model
Author :
Miao, Hui ; Zhao, Hui-Juan ; Gao, Feng ; Gong Shao-run
Author_Institution :
Sch. of Precision Instrum. & Opto-Electron. Eng., Tianjin Univ., Tianjin, China
Abstract :
Cone-beam CT system has become a hot issue in current CT technique. Compared with the traditional 2D CT, cone beam CT can greatly reduce the scanning time, improve the utilization ratio of X-ray, and enhance the spatial resolution. In the article, simulation data based on the 3D Shepp-Logan Model was obtained by tracing the X-ray and applying the radial attenuation theory. FDK (Feldkamp, Davis and Kress) reconstruction algorithm was then adopted to reconstruct the 3D Shepp-Logan Mode. The reconstruction results indicate that for the central image the spatial resolution can reach 8 linepairs/mm. Reconstructed images truthfully reveal the archetype.
Keywords :
computerised tomography; image reconstruction; medical image processing; 3D Shepp-Logan model; Feldkamp-Davis-Kress reconstruction algorithm; X-ray; cone-beam CT; radial attenuation theory; spatial resolution; Algorithm design and analysis; Computed tomography; Image reconstruction; Instruments; Light sources; Reconstruction algorithms; Spatial resolution; X-ray detection; X-ray detectors; X-ray imaging;
Conference_Titel :
Biomedical Engineering and Informatics, 2009. BMEI '09. 2nd International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4132-7
Electronic_ISBN :
978-1-4244-4134-1
DOI :
10.1109/BMEI.2009.5304987
