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Xu, Y.* ; Tischenko, O. ; Hoeschen, C.

Image reconstruction by OPED algorithm with averaging.

Numer. Algorithms 45, 179-193 (2007)
Verlagsversion DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
OPED is a new image reconstruction algorithm based on orthogonal polynomial expansion on the disk. We show that the integral of the approximation function in OPED can be given explicitly and evaluated efficiently. As a consequence, the reconstructed image over a pixel can be effectively represented by its average over the pixel, instead of by its value at a single point in the pixel, which can help to reduce the aliasing caused by under sampling. Numerical examples are presented to show that the averaging process indeed improves the quality of the reconstructed images.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Reconstruction of images; Radon projections; OPED algorithm; Averaging
ISSN (print) / ISBN 1017-1398
e-ISSN 1572-9265
Zeitschrift Numerical Algorithms
Quellenangaben Band: 45, Heft: 1-4, Seiten: 179-193 Artikelnummer: , Supplement: ,
Verlag Springer
Begutachtungsstatus Peer reviewed