Abstract
In this paper, we present a novel projection-based novel noise reduction method for photon counting energy resolving detectors in Spectral Computed Tomography (CT) imaging. In order to denoise the projection data, a guidance image from all energy channels is computed, which employs a variant of the joint bilateral filter to denoise each energy bin individually. The method is evaluated by a simulation study of cone beam CT data. We achieve a reduction of noise in individual channels by 80% while at the same time preserving edges and structures well in the results, which indicate that the methods are applicable to clinical practice.
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References
Heismann BJ, Schmidt BT, Flohr TG. Spectral computed tomography. Proc SPIE. 2012.
Kachelrieß M, Watzke O, Kalender WA. Generalized multi-dimensional adaptive filtering for conventional and spiral single-slice, multi-slice, and cone-beam CT. Med Phys. 2001;28(4):475–90.
Zeng GL, Zamyatin A. A filtered backprojection algorithm with ray-by-ray noise weighting. Med Phys. 2013;40(3):031113–1–7.
Manduca A, Yu L, Trzasko JD, et al. Projection space denoising with bilateral filtering and CT noise modeling for dose reduction in CT. Med Phys. 2009;36(11):4911–9.
Manhart M, Fahrig R, Hornegger J, et al. Guided noise reduction for spectral CT with energy-selective photon counting detectors. Proc CT Meet. 2014; p. 91–4.
Petschnigg G, Szeliski R, Agrawala M, et al. Digital photography with flash and no-flash image pairs. ACM Trans Graph. 2004;23(3):664–72.
Maier A, Hofmann HG, Schwemmer C, et al. Fast simulation of x-ray projections of spline-based surfaces using an append buffer. Phys Med Biol. 2012;57(19):6193–210.
Segars WP, Sturgeon G, Mendonca S, et al. 4D XCAT phantom for multimodality imaging research. Med Phys. 2010;37(9):4902–15.
Hubbell JH, Seltzer SM. Tables of X-ray Mass Attenuation Coefficients and Mass Energy Absorption Coefficients. National Inst. of Standards and Technology-PL, Gaithersburg, MD (United States). Ionizing Radiation Div.; 1995.
Maier A, Hofmann H, Berger M, et al. CONRAD: a software framework for conebeam imaging in radiology. Med Phys. 2013;40(11):111914–1–8.
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© 2015 Springer-Verlag Berlin Heidelberg
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Lu, Y. et al. (2015). Projection-Based Denoising Method for Photon-Counting Energy-Resolving Detectors. In: Handels, H., Deserno, T., Meinzer, HP., Tolxdorff, T. (eds) Bildverarbeitung für die Medizin 2015. Informatik aktuell. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46224-9_25
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DOI: https://doi.org/10.1007/978-3-662-46224-9_25
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