Title :
A hybrid scatter correction method for cone-beam CT
Author :
Zhang, Feng ; Bin Yan ; Li, Jianxin ; Li, Lei ; Jia, Pengxiang ; Hu, Guoen
Author_Institution :
China Nat. Digital Switching Syst. Eng. & Technol. Res. Center, Zhengzhou, China
Abstract :
There´s great influence on the reconstructed image by X-ray scatter in cone-beam computed tomography (CBCT). X-ray scatter correction technique is one of the hot research fields in 3D imaging of CBCT. A hybrid scatter correction method is proposed, which combines the beam attenuation grid and the beam stop block. Combined with the scatter correction equipments, a scatter correction algorithm is designed to reduce the X-ray scatter in this paper. The scatter correction performance is investigated by real experiments with an industrial metallic bolt. The results showed that the proposed method could more effectively suppress the scatter artifacts than which based on an attenuation grid alone.
Keywords :
X-ray scattering; computerised tomography; image reconstruction; medical image processing; 3D imaging; CBCT; X-ray scatter; beam attenuation grid; beam stop block; cone-beam computed tomography; hybrid scatter correction method; image reconstruction; industrial metallic bolt; Attenuation; Computed tomography; Detectors; Image reconstruction; Photonics; Steel; X-ray imaging; 3D imaging; CBCT; X-ray imaging; beam attenuation grid; scatter correction;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6495-1
DOI :
10.1109/BMEI.2010.5639468
