New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans

Dan Xia, Yu Zou, Lifeng Yu, Xiaochuan Pan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Fan-beam scan is a configuration widely used in clinical computed tomography (CT) because it is easy to implement and control. Filtered-backprojection(FBP)-based algorithms have been developed previously for exact reconstruction of the entire image or an ROI within the image from the data acuqired in fan-beam scans. Recently, we have developed a 3D FBP-based algorithm for image reconstruction on Pi-line segments in a helical cone-beam scan. In this work, we demonstrated that the 3D FBP-based algorithm indeed provided a rather general FBP-based formulation for image reconstruction. Based upon this formulation we derived new FBP-based algorithms for image reconstruction in the fan-beam scans, which can be interpreted as the special case of the helical scan. Existing algorithms corresponding to the new derived algorithms were identified. We also performed a preliminary numerical study to verify our theoretical results. The results in the work can readily be generalized to other non-circular trajectories.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium Conference Record
EditorsJ.A. Seibert
Pages2530-2533
Number of pages4
Volume4
StatePublished - 2004
Externally publishedYes
Event2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
Duration: Oct 16 2004Oct 22 2004

Other

Other2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors
CountryItaly
CityRome
Period10/16/0410/22/04

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Image reconstruction
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Tomography
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Trajectories

Keywords

  • Computed tomography (CT)
  • Fan-beam
  • Image reconstruction

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Xia, D., Zou, Y., Yu, L., & Pan, X. (2004). New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans. In J. A. Seibert (Ed.), IEEE Nuclear Science Symposium Conference Record (Vol. 4, pp. 2530-2533). [M2-193]

New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans. / Xia, Dan; Zou, Yu; Yu, Lifeng; Pan, Xiaochuan.

IEEE Nuclear Science Symposium Conference Record. ed. / J.A. Seibert. Vol. 4 2004. p. 2530-2533 M2-193.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xia, D, Zou, Y, Yu, L & Pan, X 2004, New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans. in JA Seibert (ed.), IEEE Nuclear Science Symposium Conference Record. vol. 4, M2-193, pp. 2530-2533, 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors, Rome, Italy, 10/16/04.
Xia D, Zou Y, Yu L, Pan X. New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans. In Seibert JA, editor, IEEE Nuclear Science Symposium Conference Record. Vol. 4. 2004. p. 2530-2533. M2-193
Xia, Dan ; Zou, Yu ; Yu, Lifeng ; Pan, Xiaochuan. / New filtered-backprojection-based algorithms for image reconstruction in fan-beam scans. IEEE Nuclear Science Symposium Conference Record. editor / J.A. Seibert. Vol. 4 2004. pp. 2530-2533
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