Use Of Maximum Entropy Method With Parallel Processing Machine

Lo I. Yin; Michael J. Bielefeld

doi:10.1117/12.942045

25 November 1987 Use Of Maximum Entropy Method With Parallel Processing Machine

Lo I. Yin, Michael J. Bielefeld

Author Affiliations +

Proceedings Volume 0827, Real-Time Signal Processing X; (1987) https://doi.org/10.1117/12.942045
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

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.

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Lo I. Yin and Michael J. Bielefeld "Use Of Maximum Entropy Method With Parallel Processing Machine", Proc. SPIE 0827, Real-Time Signal Processing X, (25 November 1987); https://doi.org/10.1117/12.942045

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