Revisit to Derivative-Free Noncircular Fan-Beam Reconstruction-Responses to "Discussions on a Noncircular Fan-Beam Reconstruction Formula" by Huang, et al.
Ge Wang
Abstract：Huang et al. identified an error in the derivation of a derivative-free noncircular fan-beam reconstruction formula published in 1993. They concluded that the derivative-free formula is not exact under the assumed conditions, but it is a very good approximate reconstruction formula. In this report, the author analyzes the impacts of that error, discuss on remedy for exact derivative -free noncircular fan-beam reconstruction, and pose some open questions.
Keywords：Computed tomography (CT)image reconstructionfan-beamcone-beamFeldkamp-type algorithm
Publication Date：2003-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 39-44 )