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Proceedings Paper

Optimum inversion method for coded-aperture emission computed tomography (ECT) using multiple projections
Author(s): Tadashi Ito; Sadao Fujimura
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Paper Abstract

Coded aperture ECT is a non-contact non-destructive imaging which gives three dimensional emitter distribution. We have developed a new inversion algorithm for coded aperture ECT using multiple projections. To improve depth resolution of the three dimensional reconstruction, we use multiple projections obtained while varying the position of an area sensor along the depth direction. An optimum filter based on the three dimensional model is derived. It is shown that the depth resolution when five projections are used is twice as high as that when single projection is used.

Paper Details

Date Published: 15 November 1993
PDF: 6 pages
Proc. SPIE 1942, Underground and Obscured Object Imaging and Detection, (15 November 1993); doi: 10.1117/12.160343
Show Author Affiliations
Tadashi Ito, Univ. of Tokyo (Japan)
Sadao Fujimura, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 1942:
Underground and Obscured Object Imaging and Detection
Nancy K. Del Grande; Ivan Cindrich; Peter B. Johnson, Editor(s)

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