OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 18, Iss. 7 — Apr. 1, 1979
  • pp: 1052–1057

Tomographical imaging using uniformly redundant arrays

T. M. Cannon and E. E. Fenimore  »View Author Affiliations


Applied Optics, Vol. 18, Issue 7, pp. 1052-1057 (1979)
http://dx.doi.org/10.1364/AO.18.001052


View Full Text Article

Enhanced HTML    Acrobat PDF (1049 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Recent work in coded aperture imaging has shown that the uniformly redundant array (URA) can image distant planar radioactive sources with no artifacts. This paper investigates the performance of two URA apertures when used in a close-up tomographic imaging system. It is shown that a URA based on m sequences is superior to one based on quadratic residues. The m-sequence array not only produces less noticeable defocus artifacts in tomographic imaging but is also more resilient to some described detrimental effects of close-up imaging. It is shown that, in spite of these close-up effects, the URA system retains tomographic depth resolution even as the source is moved close to the detector. The URAs based on m sequences provide better images than those obtained using random arrays. This compliments previous studies that have shown random arrays to have better tomographical properties than Fresnel zone plates and nonredundant arrays.

© 1979 Optical Society of America

History
Original Manuscript: October 20, 1978
Published: April 1, 1979

Citation
T. M. Cannon and E. E. Fenimore, "Tomographical imaging using uniformly redundant arrays," Appl. Opt. 18, 1052-1057 (1979)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-18-7-1052


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. L. Mertz, N. O. Young, in Proceedings of the International Conference on Optical Instruments and Techniques, K. J. Habell, Ed. (Chapman and Hall, London, 1961).
  2. H. H. Barrett, J. Nucl. Med. 13, 382 (1972). [PubMed]
  3. K. F. Koral, W. L. Rogers, G. F. Knoll, J. Nuc. Med., 16, 402 (1975).
  4. L. Chang, B. Macdonald, V. Perez-Mendez, “Comparisons of Coded Aperture Imaging Using Various Aperture and Decoding Methods,” presented at SPIE Symposium on Applications of Optics in Medicine and Biology, San Diego (1976).
  5. E. E. Fenimore, T. M. Cannon, Appl. Opt. 17, 337 (1978). [CrossRef] [PubMed]
  6. D. Calabro, J. K. Wolf, Inf. Control 11, 537 (1968). [CrossRef]
  7. F. Gunson, B. Polychronopulos, Mon. Not. R. Astron. Soc. 177, 485 (1976).
  8. F. J. MacWilliams, N. J. Sloan, Proc. IEEE 64, 1715 (1976). [CrossRef]
  9. R. H. Dicke, Astrophys. J. 153, L101 (1968). [CrossRef]
  10. H. H. Barrett, F. A. Horrigan, Appl. Opt. 12, 2606 (1973). [CrossRef]
  11. E. E. Fenimore, Appl. Opt. 17, 3562 (1978). [CrossRef] [PubMed]
  12. E. E. Fenimore, T. M. Cannon, E. L. Miller, “A Comparison of Fresnel Zone Plates and Uniformly Redundant Arrays,” presented at SPIE Twenty-Second Technical Symposium, San Diego (1978).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited