Tomographical Properties Of Uniformly Redundant Arrays

T. M. Cannon; E. E. Fenimore

doi:10.1117/12.956750

9 January 1979 Tomographical Properties Of Uniformly Redundant Arrays

T. M. Cannon, E. E. Fenimore

Proceedings Volume 0155, Image Understanding Systems and Industrial Applications I; (1979) https://doi.org/10.1117/12.956750
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

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 obnoxious 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, tomographic depth resolution increases as the source is moved closer to the detector.

Citation Download Citation

T. M. Cannon and E. E. Fenimore "Tomographical Properties Of Uniformly Redundant Arrays", Proc. SPIE 0155, Image Understanding Systems and Industrial Applications I, (9 January 1979); https://doi.org/10.1117/12.956750

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