Abstract
We consider the reconstruction of pictures from p complete projections. We show that the filtered backprojection algorithm achieves an L2-error of order p-α for picture densities which belong to the Sobolev space \( H_{0}^{\alpha }\left( \Omega \right) \) when the ideal low-pass filter is used. We derive an optimal filter by minimizing our error bound. The validity of our error estimate and the performence of the optimal filter are investigated by numerical experiments.
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Natterer, F. (1979). Genauigkeitsfragen bei der Numerischen Rekonstruktion von Bildern. In: Ansorge, R., Glashoff, K., Werner, B. (eds) Numerical Mathematics / Numerische Mathematik. ISNM International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / Série Internationale D’Analyse Numérique, vol 49. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-6285-1_10
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DOI: https://doi.org/10.1007/978-3-0348-6285-1_10
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-6286-8
Online ISBN: 978-3-0348-6285-1
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