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20 October 1993 Automatic FLIR target recognition using a hierarchical neural system
Adam R. Nolan, William G. Wee, James D. Leonard Jr.
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Proceedings Volume 1957, Architecture, Hardware, and Forward-Looking Infrared Issues in Automatic Target Recognition; (1993) https://doi.org/10.1117/12.161424
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States
Abstract
This paper describes an approach to areas of FLIR target recognition: (1) target isolation, and (2) target classification. The method utilized for the isolation of potential target regions is based on localized texture information. The modality of the local gradient histogram is used to define both target regions and to segment these regions into subcomponents corresponding to the vehicle morphology (wheels, engine, armor, etc.). After the target regions are isolated, each region is fit with a metric (parallelogram). Each subcomponent in this region is then classified based on its shape and location within this metric. The classification is made using several neural networks with each corresponding to a specific vehicular subcomponent. The classifications of these neural networks are then used as input to another network responsible for vehicle type classification. This construct allows for azimuth and depression angle robustness of the target region, the limitations of which are discussed.
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Adam R. Nolan, William G. Wee, and James D. Leonard Jr. "Automatic FLIR target recognition using a hierarchical neural system", Proc. SPIE 1957, Architecture, Hardware, and Forward-Looking Infrared Issues in Automatic Target Recognition, (20 October 1993); https://doi.org/10.1117/12.161424
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KEYWORDS
Image filtering
Image segmentation
Forward looking infrared
Target recognition
Classification systems
Image classification
Fuzzy logic
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