A rebinning-type backprojection-filtration algorithm for image reconstruction in helical cone-beam CT

Lifeng Yu, Dan Xia, Yu Zou, Emil Sidky, Xiaoehuan Pan

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

1 Scopus citations

Abstract

We developed an exact algorithm for image reconstruction in helical cone-beam CT based upon the backprojection-filtration (BPF) algorithm. This algorithm has the same backprojection-filtration form while reconstructing images in a rebinning geometry. It first converts the cone-beam data into fan-parallel-beam data, and then backprojects the data derivatives onto the PI-line segments, finally performs a finite inverse Hilbert transform on each Pi-line segment to obtain the reconstruction. It retains the properties of the original BPF algorithm in that it also requires minimum data and can reconstruct ROI images from truncated data. More importantly, due to the elimination of the weighting factor before the backprojection, it improves the computational efficiency and the noise and resolution properties in reconstructed images.

Original languageEnglish (US)
Title of host publication2006 IEEE Nuclear Science Symposium - Conference Record
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2869-2872
Number of pages4
ISBN (Print)1424405610, 9781424405619
DOIs
StatePublished - Jan 1 2006
Event2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD - San Diego, CA, United States
Duration: Oct 29 2006Nov 4 2006

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume5
ISSN (Print)1095-7863

Other

Other2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD
CountryUnited States
CitySan Diego, CA
Period10/29/0611/4/06

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Keywords

  • Backprojection-filtration (BPF)
  • Computed tomography (CT)
  • Cone-beam projection
  • Image reconstruction
  • Region of interest (ROI)

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Yu, L., Xia, D., Zou, Y., Sidky, E., & Pan, X. (2006). A rebinning-type backprojection-filtration algorithm for image reconstruction in helical cone-beam CT. In 2006 IEEE Nuclear Science Symposium - Conference Record (pp. 2869-2872). [4179632] (IEEE Nuclear Science Symposium Conference Record; Vol. 5). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2006.356475