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Novel method to calibrate CT scanners with a conic probe body.
Proc. SPIE 10132:101322Q (2017)
A new and simple object for calibrating tomographic scanners has been proposed. Instead of a conventional high-density ball as an object for calibration, we propose a high-density conic body. The cone is advantageous compare to the ball both because of its easy availability (uncomplicated manufacturing) and the straightforward and less error-prone analysis necessary for the identification of a space point (ball’s center vs. cone apex). Applying the conic body instead of a ball as a calibration object enables to reduce calibration errors substantially. Additionally we propose an efficient way to determine the discrepancy between ideal and misaligned positions of the detector that may be crucial for the quality of the reconstruction.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
x-ray tomography, cone beam CT, calibration
ISSN (print) / ISBN
0277-786X
e-ISSN
1996-756X
Konferenztitel
Medical Imaging 2017: Physics of Medical Imaging
Konferzenzdatum
11 February 2017
Konferenzort
Orlando, Florida, United States
Zeitschrift
Proceedings of SPIE
Quellenangaben
Band: 10132,
Artikelnummer: 101322Q
Verlag
SPIE
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed