Abstract
This paper concerns the approximation of bivariate functions using the filtered back projection (FBP) formula from computerized tomography. To this end, we prove error estimates and convergence rates for the FBP reconstruction method for target functions ƒ from a Sobolev space Hα(ℝ2) of fractional order α > 0, where we bound the FBP reconstruction error with respect to the (weaker) norms of the (rougher) Sobolev spaces Hσ(ℝ2), for 0 ≤ σ ≤ α. The results of this paper generalize previous of our findings in [2]–[4] for L2-error estimates, i.e., for the case σ = 0, to Sobolev error estimates for all fractional orders σ ∈ [0, α] and provide criteria to assess the performance of the utilized low-pass filter by means of its window function.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.