Sequential fusion

Mark E. Oxley; Kathleen E. Daly; Christine M. Schubert-Kabban; David A. Zitelli

doi:10.1117/12.884702

5 May 2011 Sequential fusion

Mark E. Oxley, Kathleen E. Daly, Christine M. Schubert-Kabban, David A. Zitelli

Author Affiliations +

Proceedings Volume 8050, Signal Processing, Sensor Fusion, and Target Recognition XX; 80500V (2011) https://doi.org/10.1117/12.884702
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

A classification system such as an Automatic Target Recognition (ATR) system might yield better performance when fused sequentially than in parallel. Most fused systems have parallel architecture, but, the medical community often uses sequential tests due to costs constraints. We define the different types of sequential fusion and investigate their characteristics. We compare parallel fused systems with sequential fused systems. Another goal of this paper is to compare competing sequential fused systems to arrive at an optimal architecture design given the systems at hand. These systems may be legacy systems whose performances are well known. If these systems have known Receiver Operating Characteristic (ROC) curves/manifolds then we derive a formula that yields the ROC curve/manifold for the resultant sequentially fused system, thus, enabling one to make these comparisons. This formula is distribution free. We give an example to demonstrate the utility of our method, and show that one can play "what if" scenarios.

Citation Download Citation

Mark E. Oxley, Kathleen E. Daly, Christine M. Schubert-Kabban, and David A. Zitelli "Sequential fusion", Proc. SPIE 8050, Signal Processing, Sensor Fusion, and Target Recognition XX, 80500V (5 May 2011); https://doi.org/10.1117/12.884702

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