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Proceedings Paper

Two-Stage Template Matching Using Quantum-Limited Images
Author(s): Thomas A Isberg; G.Michael Morris
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Paper Abstract

Two-stage template matching using quantum-limited images is investigated. A high-light-level input scene is searched using a small window function that is moved to various offsets within the input scene. The cross-correlation between the reference function and the input scene at a given offset is estimated by sampling the input scene using a small number of detected photoevents. The photon-limited correlation signal is used as a similarity criterion for comparing the input with the reference function. In the first stage, a small number of detected photoevents is used to find probable locations for the reference function. In the second stage, likely locations are examined using a sufficient number of detected photoevents to provide a recognition decision within a specified error. Results are presented for a simple inspection problem, and for scene matching in a satellite image.

Paper Details

Date Published: 2 December 1988
PDF: 8 pages
Proc. SPIE 0976, Statistical Optics, (2 December 1988); doi: 10.1117/12.948540
Show Author Affiliations
Thomas A Isberg, University of Rochester (United States)
G.Michael Morris, University of Rochester (United States)

Published in SPIE Proceedings Vol. 0976:
Statistical Optics
G. Michael Morris, Editor(s)

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