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Proceedings Paper

Synthetic aperture microscope: experimental results
Author(s): Paul Woodford; Terry M. Turpin; Michele W. Rubin; Jeffrey Lapides; Craig H. Price
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Paper Abstract

Recently, the theory of the synthetic aperture microscope (SAM) was presented. A SAM is a three dimensional imaging system that makes use of the principles of synthetic aperture radar to obtain a high resolution, complex valued image at a large working distance. Theoretically, a SAM can achieve resolution of approximately (lambda) /4 in all three dimensions. A typical system consists of a holographic sensor head and a reconstruction processor. This implementation will use the Essex ImSynTM optoelectronic discrete Fourier transform (DFT) processor to reconstruct the synthetic aperture image. Over the past year Essex has constructed a breadboard of the system and obtained initial results consisting of a single digital hologram and its computer-reconstructed image. The ability to collect complex valued image data opens the door to image processing and pattern recognition algorithms that are not applicable to intensity images, such as holographic interferometry for mapping strain fields. Applications include industrial inspection, robotics, and biological imaging.

Paper Details

Date Published: 7 June 1996
PDF: 11 pages
Proc. SPIE 2751, Hybrid Image and Signal Processing V, (7 June 1996);
Show Author Affiliations
Paul Woodford, Essex Corp. (United States)
Terry M. Turpin, Essex Corp. (United States)
Michele W. Rubin, Essex Corp. (United States)
Jeffrey Lapides, Essex Corp. (United States)
Craig H. Price, Essex Corp. (United States)

Published in SPIE Proceedings Vol. 2751:
Hybrid Image and Signal Processing V
David P. Casasent; Andrew G. Tescher, Editor(s)

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