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Proceedings Paper

Method And Analysis For Obtaining A Dual Representation Of Images
Author(s): Jack P. Sigda; Eugene S. McVey; Rafael M. Inigo
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Paper Abstract

A means for obtaining both a rectangular and a log-spiral representation of images is examined. A method which utilizes a single CCD imager is examined in detail. The method uses a pixel combination process to form the log-spiral representation. The additional circuitry which is necessary to perform this combination process is discussed. The combination process used forms a log-spiral representation which is distorted. A means for quantifying this distortion is developed. Variations of the general method are considered in which the geometry of the CCD imager's photosen-sors are varied. A CCD imager with square, rectangular, and triangular shaped pixels is considered. To compare the different methods the amount of distortion introduced to the log-spiral representation is determined by direct calculation for each of the camera configurations. The results suggest that a camera with varied pixel shapes could form a log-spiral representation with less distortion.

Paper Details

Date Published: 22 August 1988
PDF: 9 pages
Proc. SPIE 0938, Digital and Optical Shape Representation and Pattern Recognition, (22 August 1988); doi: 10.1117/12.976588
Show Author Affiliations
Jack P. Sigda, University of Virginia (United States)
Eugene S. McVey, University of Virginia (United States)
Rafael M. Inigo, University of Virginia (United States)


Published in SPIE Proceedings Vol. 0938:
Digital and Optical Shape Representation and Pattern Recognition
Richard D. Juday, Editor(s)

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