Wavelet filtering algorithm for fan-beam CT

作     者：Zhao, SY Wang, G Hsieh, J 

作者机构：Univ Missouri Dept Math & Comp Sci St Louis MO 63121 USA Univ Iowa Dept Radiol Iowa City IA 52242 USA GE Med Syst Appl Sci Lab Milwaukee WI 53201 USA 

出 版 物：《ELECTRONICS LETTERS》 (电子学快报)

年 卷 期：1998年第34卷第25期

页      面：2395-2396页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：wavelet transforms wavelet filtering algorithm filtering theory fan-beam CT Filtering methods in signal processing raw projection data computerised tomography X-ray techniques: radiography and computed tomography (biomedical imaging/measurement) Patient diagnostic methods and instrumentation filtered backprojection computed tomography X-rays and particle beams (medical uses) image reconstruction 

摘      要：To date, all wavelet computed tomography (CT) work has been based on the assumption of a parallel-beam geometry. The authors directly formulate wavelet CT based on the fan-beam geometry, using recently developed theory for wavelet filtering in filtered backprojection. Experiments with clinical raw projection data demonstrate the feasibility and utility of the approach.