Match Quality Estimation For Feature-Based Scene Matching

J. F. Belsher; H. F. Williams

doi:10.1117/12.959149

23 December 1980 Match Quality Estimation For Feature-Based Scene Matching

J. F. Belsher, H. F. Williams

Proceedings Volume 0238, Image Processing for Missile Guidance; (1980) https://doi.org/10.1117/12.959149
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

Scene matching is a valuable and easily implemented procedure for navigation update determination. However, for scene matchers a measure of match confidence is required to judge either match acceptability or reference suitability. No confidence measure has previously been available for feature based matchers. An analytical technique is presented that utilizes feature statistics and measurements of the match surface or predicted match surface to estimate match quality as a confidence measure. The technique has been used both for a priori reference selection and for a posteriori measurement of match confidence. Feature statistics have been obtained by combining analysis with empirical results. This reliability prediction technique has been validated over a large number of test matches. Approximation techniques exist which reduce the required computations to a trivial amount.

Citation Download Citation

J. F. Belsher and H. F. Williams "Match Quality Estimation For Feature-Based Scene Matching", Proc. SPIE 0238, Image Processing for Missile Guidance, (23 December 1980); https://doi.org/10.1117/12.959149

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