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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 20 — Oct. 15, 1989
  • pp: 4344–4352

New family of binary arrays for coded aperture imaging

Stephen R. Gottesman and E. E. Fenimore  »View Author Affiliations


Applied Optics, Vol. 28, Issue 20, pp. 4344-4352 (1989)
http://dx.doi.org/10.1364/AO.28.004344


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Abstract

We introduce a new family of binary arrays for use in coded aperture imaging which are predicted to have properties and sensitivity (SNR) equal to that of the uniformly redundant array (URA). The new arrays, called MURAs (modified URAs), have decoding coefficients all of which are unimodular, resulting in a reconstructed image with noise terms completely independent of image–source structure. Although the new arrays are derived from quadratic residues, they do not belong to the cyclic difference set or set of pseudonoise sequences and consequently are constructible in configurations forbidden to those designs, thus providing the user with a wider selection of aperture patterns to match his particular needs. With the addition of MURAs to the family of binary arrays, all prime numbers can now be used for making optimal coded apertures, increasing the number of available square patterns by more than a factor of 3.

© 1989 Optical Society of America

History
Original Manuscript: December 15, 1988
Published: October 15, 1989

Citation
Stephen R. Gottesman and E. E. Fenimore, "New family of binary arrays for coded aperture imaging," Appl. Opt. 28, 4344-4352 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-20-4344

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