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Proceedings Paper

Efficiency and sensitivity of methods for assessing ambiguity in data association decisions
Author(s): Bret D. Kragel; Shawn M. Herman; Nick J Roseveare
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Paper Abstract

The central problem in multitarget, multisensor surveillance is that of determining which reports from separate sensors arise from common objects. Due to stochastic errors in the source reports, there may be multiple data association hypotheses with similar likelihoods. Moreover, established methods for performing data association make fundamental modeling assumptions that hold only approximately in practice. For these reasons, it is beneficial to include some measure of uncertainty, or ambiguity, when reporting association decisions. In this paper, we perform an analysis of the benefits versus runtime performance of three methods of producing ambiguity estimates for data association: enumeration of the k-best data association hypotheses, importance sampling, and Markov Chain Monte Carlo estimation. In addition, we briefly examine the sensitivity of ambiguity estimates to violations of the stochastic model used in the data association procedure.

Paper Details

Date Published: 16 April 2008
PDF: 14 pages
Proc. SPIE 6969, Signal and Data Processing of Small Targets 2008, 69690V (16 April 2008); doi: 10.1117/12.778344
Show Author Affiliations
Bret D. Kragel, Numerica Corp. (United States)
Shawn M. Herman, Numerica Corp. (United States)
Nick J Roseveare, Numerica Corp. (United States)


Published in SPIE Proceedings Vol. 6969:
Signal and Data Processing of Small Targets 2008
Oliver E. Drummond, Editor(s)

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