Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data

Matthias Bertram; Georg Rose; Dirk Schäfer; Jens Wiegert; Til Aach

doi:10.1109/ISBI.2004.1398691

Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data

Matthias Bertram, Georg Rose, Dirk Schäfer, Jens Wiegert, Til Aach

Institute of Signal Processing

Philips Research Laboratories

Abstract

To compensate for sparse angular sampling in cone-beam computed tomography causing characteristic streak artifacts, we propose to increase the number of projected views by means of nonlinear directional interpolation. For this purpose, a specific method for accurate interpolation of 3D sinogram data based on a structure tensor approach has been developed. Quantitative evaluation of the interpolation error shows that our method clearly outperforms conventional interpolation schemes. Using a set of simulated cone-beam CT projection data, it is demonstrated that inclusion of interpolated projections into the reconstruction process significantly reduces streak artifacts and noise while preserving spatial resolution to a high degree.

Original language	English
Title of host publication	2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821)
Number of pages	4
Publisher	IEEE
Publication date	01.01.2004
Pages	928-931
ISBN (Print)	0-7803-8388-5, 978-078038388-3
DOIs	https://doi.org/10.1109/ISBI.2004.1398691
Publication status	Published - 01.01.2004
Event	2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano - Arlington, United States Duration: 15.04.2004 → 18.04.2004 Conference number: 64593

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title = "Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data",

abstract = "To compensate for sparse angular sampling in cone-beam computed tomography causing characteristic streak artifacts, we propose to increase the number of projected views by means of nonlinear directional interpolation. For this purpose, a specific method for accurate interpolation of 3D sinogram data based on a structure tensor approach has been developed. Quantitative evaluation of the interpolation error shows that our method clearly outperforms conventional interpolation schemes. Using a set of simulated cone-beam CT projection data, it is demonstrated that inclusion of interpolated projections into the reconstruction process significantly reduces streak artifacts and noise while preserving spatial resolution to a high degree.",

author = "Matthias Bertram and Georg Rose and Dirk Sch{\"a}fer and Jens Wiegert and Til Aach",

year = "2004",

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booktitle = "2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821)",

note = "2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano<br/> ; Conference date: 15-04-2004 Through 18-04-2004",

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Bertram, M, Rose, G, Schäfer, D, Wiegert, J & Aach, T 2004, Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data. in 2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821). IEEE Proceedings , IEEE, pp. 928-931, 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
, Arlington, Virginia, United States, 15.04.04. https://doi.org/10.1109/ISBI.2004.1398691

Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data. / Bertram, Matthias; Rose, Georg; Schäfer, Dirk et al.
2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821). IEEE, 2004. p. 928-931 (IEEE Proceedings ).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

TY - GEN

T1 - Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data

AU - Bertram, Matthias

AU - Rose, Georg

AU - Schäfer, Dirk

AU - Wiegert, Jens

AU - Aach, Til

N1 - Conference code: 64593

PY - 2004/1/1

Y1 - 2004/1/1

N2 - To compensate for sparse angular sampling in cone-beam computed tomography causing characteristic streak artifacts, we propose to increase the number of projected views by means of nonlinear directional interpolation. For this purpose, a specific method for accurate interpolation of 3D sinogram data based on a structure tensor approach has been developed. Quantitative evaluation of the interpolation error shows that our method clearly outperforms conventional interpolation schemes. Using a set of simulated cone-beam CT projection data, it is demonstrated that inclusion of interpolated projections into the reconstruction process significantly reduces streak artifacts and noise while preserving spatial resolution to a high degree.

AB - To compensate for sparse angular sampling in cone-beam computed tomography causing characteristic streak artifacts, we propose to increase the number of projected views by means of nonlinear directional interpolation. For this purpose, a specific method for accurate interpolation of 3D sinogram data based on a structure tensor approach has been developed. Quantitative evaluation of the interpolation error shows that our method clearly outperforms conventional interpolation schemes. Using a set of simulated cone-beam CT projection data, it is demonstrated that inclusion of interpolated projections into the reconstruction process significantly reduces streak artifacts and noise while preserving spatial resolution to a high degree.

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BT - 2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821)

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Directional Interpolation of Sparsely Sampled Cone-Beam CT Sinogram Data

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