Shift-invariant cone-beam reconstruction outside R-lines with a disconnected source trajectory
Yu Z, Noo F, Lauritsch G, Maier A, Dennerlein F, Hornegger J (2012)
Publication Type: Conference contribution
Publication year: 2012
Journal
Pages Range: 3447-3452
Conference Proceedings Title: IEEE Nuclear Science Symposium Conference Record
Event location: USA
ISBN: 9781467320306
DOI: 10.1109/NSSMIC.2012.6551786
Abstract
Over the past decade, significant progress has been made in theoretically-exact and stable (TES) cone-beam reconstruction using shift-invariant filtering, provided that Tuy's condition is satisfied. However, these algorithms only allow reconstruction at positions that lie on an R-line (an R-line is any segment of line that connects two source positions). In 2005, Pack and Noo proposed a formula that allows TES reconstruction outside R-lines using shift-invariant filtering. However, for some disconnected source trajectories, the backprojection and filtering steps for this formula are complex. In this work, we propose a new shift-invariant reconstruction formula that allows less complex TES reconstruction outside R-lines for some disconnected source trajectories. This new formula is validated using computer simulated data from a tent trajectory. © 2012 IEEE.
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Germany (DE)How to cite
APA:
Yu, Z., Noo, F., Lauritsch, G., Maier, A., Dennerlein, F., & Hornegger, J. (2012). Shift-invariant cone-beam reconstruction outside R-lines with a disconnected source trajectory. In IEEE Nuclear Science Symposium Conference Record (pp. 3447-3452). USA.
MLA:
Yu, Z., et al. "Shift-invariant cone-beam reconstruction outside R-lines with a disconnected source trajectory." Proceedings of the 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012, USA 2012. 3447-3452.
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