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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 69, Iss. 10 — Oct. 1, 1979
  • pp: 1323–1333

Three-dimensional radiographic imaging with a restricted view angle

M. Y. Chiu, H. H. Barrett, R. G. Simpson, C. Chou, J. W. Arendt, and G. R. Gindi  »View Author Affiliations


JOSA, Vol. 69, Issue 10, pp. 1323-1333 (1979)
http://dx.doi.org/10.1364/JOSA.69.001323


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Abstract

The properties of many three-dimensional radiographic imaging systems are examined within a common analytic framework. It is found, by performing an important coordinate transformation, that the projection data of these systems can be transformed to a form amenable to analysis by the centralslice theorem. Therefore, a clear relationship between the measured data set and the three-dimensional Fourier transform of the object can be established. For the Fourier aperture system, each measurement in the detector plane gives directly one point in the three-dimensional Fourier transform of the object. The limited view angle of these systems manifests itself in the incomplete collection of the Fourier transform of the object. This “missing cones” region in the Fourier space producesa point-spread function that has long-range conical ridges radiating from the central core. It is shown that degradations in linear reconstructions of extended objects are not as disastrous as might have been expected.

© 1979 Optical Society of America

Citation
M. Y. Chiu, H. H. Barrett, R. G. Simpson, C. Chou, J. W. Arendt, and G. R. Gindi, "Three-dimensional radiographic imaging with a restricted view angle," J. Opt. Soc. Am. 69, 1323-1333 (1979)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-69-10-1323


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References

  1. C. Chou and H. H. Barrett, "Gamma-ray imaging in Fourier space," Opt. Lett. 3, 187–189 (1978).
  2. L. Mertz, "Applicability of the rotation collimator to nuclear medicine,"medicine," Opt. Commun. 12, 216–219 (1974).
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  9. A. Lohmann, "Three-dimensional properties of wave fields," Optik (Stuttgart) 51, 105–117 (1978).
  10. R. N. Bracewell and S. J. Wernecke, "Image reconstruction over a finite field of view," J. Opt. Soc. Am. 65, 1342–1346 (1975).
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  13. A good review of this topic can be found in B. R. Frieden, "Image Enhancement and Restoration," Chap. 5 of Picture Processing and Digital Filtering, edited by T. S. Huang (Springer-Verlag, Heidelberg, 1975).
  14. J. R. Fienup, "Reconstruction of an object from the modulus of its Fourier transform," Opt. Lett. 3, 27–29 (1978).
  15. R. G. Pridham, "Imaging of volume object by shadow casting," Ph.D. thesis, University of Rhode Island, 1977, Appendix M (unpublished).

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