Non-TOF fourier-based analytic reconstruction from TOF histo-projections for high resolution TOF scanners

Vladimir Y. Panin; Samuel Matej

doi:10.1117/12.2534944

28 May 2019 Non-TOF fourier-based analytic reconstruction from TOF histo-projections for high resolution TOF scanners

Vladimir Y. Panin, Samuel Matej

Proceedings Volume 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine; 110720K (2019) https://doi.org/10.1117/12.2534944
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019, Philadelphia, United States

Abstract

We have extended Fourier-based reconstruction approaches from histo-projection TOF data to include non-TOF reconstruction. TOF information is used here for Fourier domain interpolation and backward extension of available histo-projection data to a larger number of azimuthal views, essential for the artifact-free non-TOF reconstruction. Only part of the available data (selection was defined by zero TOF frequency location) are used in the final reconstruction. We demonstrate, using experimental data, that the proposed approach is insensitive to the time calibration errors, while it preserves the spatial resolution of the Fourier-based analytic TOF algorithm (3D DIFTOF), although with higher noise levels, as given (as a trade-off) by the non-TOF reconstruction.

Citation Download Citation

Vladimir Y. Panin and Samuel Matej "Non-TOF fourier-based analytic reconstruction from TOF histo-projections for high resolution TOF scanners", Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110720K (28 May 2019); https://doi.org/10.1117/12.2534944

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KEYWORDS

Reconstruction algorithms

Scanners

3D-TOF imaging

Spatial resolution

3D image processing

3D image reconstruction

Calibration

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