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Proceedings Paper

Use Of Maximum Entropy Method With Parallel Processing Machine
Author(s): Lo I. Yin; Michael J. Bielefeld
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Paper Abstract

Maximum entropy method (MEM) and balanced correlation method were used to reconstruct the images of low-intensity x-ray objects obtained experimentally by means of a Uniformly Redundant Array coded aperture system. The reconstructed images from MEM are clearly superior. However, the MEM algorithm is computationally more time consuming because of its iterative nature. On the other hand, both the inherently two-dimensional character of images and the iterative computations of MEM suggest the use of parallel processing machines. Accordingly, computations were carried out on the Massively Parallel. Processor (MPP) at Goddard Space Flight Center as well as on the serial processing machine VAX 8600, and the results are compared.

Paper Details

Date Published: 25 November 1987
PDF: 8 pages
Proc. SPIE 0827, Real-Time Signal Processing X, (25 November 1987); doi: 10.1117/12.942045
Show Author Affiliations
Lo I. Yin, NASA Goddard Space Flight Center (United States)
Michael J. Bielefeld, Space Telescope Science Institute (United States)

Published in SPIE Proceedings Vol. 0827:
Real-Time Signal Processing X
J. P. Letellier, Editor(s)

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