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Optical Engineering

Online adaptive decision fusion framework based on projections onto convex sets with application to wildfire detection in video
Author(s): Osman Gunay; Ahmet E. Cetin; Behcet U. Töreyin
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Paper Abstract

In this paper, an online adaptive decision fusion framework is developed for image analysis and computer vision applications. In this framework, it is assumed that the compound algorithm consists of several sub-algorithms, each of which yields its own decision as a real number centered around zero, representing the confidence level of that particular sub-algorithm. Decision values are linearly combined with weights that are updated online according to an active fusion method based on performing orthogonal projections onto convex sets describing sub-algorithms. It is assumed that there is an oracle, who is usually a human operator, providing feedback to the decision fusion method. A video-based wildfire detection system is developed to evaluate the performance of the algorithm in handling the problems where data arrives sequentially. In this case, the oracle is the security guard of the forest lookout tower verifying the decision of the combined algorithm. Simulation results are presented.

Paper Details

Date Published: 1 July 2011
PDF: 13 pages
Opt. Eng. 50(7) 077202 doi: 10.1117/1.3595426
Published in: Optical Engineering Volume 50, Issue 7
Show Author Affiliations
Osman Gunay, Bilkent Univ. (Turkey)
Ahmet E. Cetin, Bilkent Univ. (Turkey)
Behcet U. Töreyin, Texas A&M Univ. (United States)

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