Title :
Wavelet filtering algorithm for fan-beam CT
Author :
Zhao, Shiying ; Wang, Ge ; Jiang Hsich
Author_Institution :
Dept. of Math. & Comput. Sci., Missouri Univ., St. Louis, MO, USA
fDate :
12/10/1998 12:00:00 AM
Abstract :
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
Keywords :
computerised tomography; filtering theory; image reconstruction; wavelet transforms; computed tomography; fan-beam CT; filtered backprojection; raw projection data; wavelet filtering algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981690
