Abstract
In this paper a mathematical method of fan-beam CT image reconstruction is introduced on the basis of the symmetry enhancement geometry. This geometry consists of two components: the even symmetry between the sampling points in the reconstruction coordinate system and all the central rays of projections, and the enhanced eightfold symmetry among these sampling points. It is shown from computer simulation that the accuracy requirement can be satisfactorily reached under some available parameters. In contrast with other methods of the fan-beam CT image reconstruction, this algorithm makes the best use of eightfold symmetry, and is convenient for parallel processing with hardware. We believe that it is economically feasible for parallel processing, and can lead to an order of magnitude reduction in the reconstruction time.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Science in China Series A-Mathematics, Physics, Astronomy & Technological Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
