The study of reconstruction image quality resulting from geometric error in micro-CT system

摘要：

The reconstruction images often suffer from artifacts caused by misaligned geometry of flat detector in micro-CT. This paper mainly simulates the causality between the reconstruction image quality and the flat detector geometry by the eight-spheres phantom. The simulation results show that the most influential parameter is β (the rotation angle of the detector plane along the center point O) among the five detector parameters, next is a, b, θ and α degressively. We should control β under 7°and a, b offset lower than 8 pixels, when adjusting micro-CT systems. We also show that the relevant correction is efficient to improve the reconstruction image quality affected by the tiny geometric error.

作者: Dongxing Xi Jianbao Gui Jing Zou Junyan Rong Zhanli Hu Xin Liu Hairong Zheng

作者单位: Paul C.Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China Key Lab for Biomedical Informatics and Health Engineering, Chinese Academy of Sciences

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）