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Proceedings Paper

Comparison of sensor noise effects on FITTS and projection based phase only correlation algorithms for high speed video trackers
Author(s): David C. Dayton; Rudolph Nolasco; Mary Lou Robinson; James B. Lasché
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Paper Abstract

The FITTS correlation algorithm has been widely used for over forty years in high speed video trackers. It has the advantage that it is very simply implemented in a digital computer with a small number of calculations. At each step the algorithm attempts to estimate the shift between an image of a moving target and a proto-type image. There are several well-known short comings of the FITTS algorithm. First the error in the shift estimate increases if the shift is greater than one pixel of the digital image. Second the FITTS algorithm is susceptible to errors from sensor noise if the video images have low signal to noise ratio. These errors can force a lower tracker closed loop bandwidth to maintain track loop stability. An alternative correlation tracker algorithm is known as Projection Based Phase Only Correlation. In this paper we compare the two algorithms with respect to the effect of sensor noise.

Paper Details

Date Published: 18 September 2014
PDF: 7 pages
Proc. SPIE 9227, Unconventional Imaging and Wavefront Sensing 2014, 922705 (18 September 2014); doi: 10.1117/12.2062502
Show Author Affiliations
David C. Dayton, Applied Technology Associates (United States)
Rudolph Nolasco, Applied Technology Associates (United States)
Mary Lou Robinson, Air Force Research Lab. (United States)
James B. Lasché, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 9227:
Unconventional Imaging and Wavefront Sensing 2014
Jean J. Dolne; Thomas J. Karr; Victor L. Gamiz, Editor(s)

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