Fast Calculation Algorithm for Line Integral on CT Reconstruction


KIPS Transactions on Computer and Communication Systems, Vol. 12, No. 1, pp. 41-46, Jan. 2023
https://doi.org/10.3745/KTCCS.2023.12.1.41,   PDF Download:
Keywords: CT Reconstruction, Iterative Reconstruction, Projection, Line Integral
Abstract

Iterative reconstruction of CT takes a long time because projection and back-projection are alternatively repeated until taking a good image. To reduce the reconstruction time, we need a fast algorithm for calculating the projection which is a time-consuming step. In this paper, we proposed a new algorithm to calculate the line integral and the algorithm is approximately 10% faster than the well-known Siddon method (Jacobs version) and has a good image quality. Although the algorithm has been investigated for the case of parallel beams, it can be extended to the case of fan and cone beam geometries in the future.


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Cite this article
[IEEE Style]
K. S. Chon and J. Gil, "Fast Calculation Algorithm for Line Integral on CT Reconstruction," KIPS Transactions on Computer and Communication Systems, vol. 12, no. 1, pp. 41-46, 2023. DOI: https://doi.org/10.3745/KTCCS.2023.12.1.41.

[ACM Style]
Kwon Su Chon and Joon-Min Gil. 2023. Fast Calculation Algorithm for Line Integral on CT Reconstruction. KIPS Transactions on Computer and Communication Systems, 12, 1, (2023), 41-46. DOI: https://doi.org/10.3745/KTCCS.2023.12.1.41.