Traffic carrying flammable, corrosive, poisonous, and radioactive materials continues to increase in proportion with the growth in their production and consumption. The sustained risk of accidental releases of such hazardous materials poses serious threats to public safety. Early detection of spills will potentially save lives, protect the environment, and thwart the need for expensive cleanup campaigns. Ground patrols and terrestrial sensing equipment cannot scale cost-effectively to cover the entire transportation network. Remote sensing with existing airborne and spaceborne platforms has the capacity to monitor vast areas regularly but often lacks the spatial resolution necessary for high accuracy detections. The emergence of unmanned aircraft systems with lightweight hyperspectral image sensors enables a resolution agile approach that can adapt both spatial and spectral resolutions in real time. Equipment operators can exploit such a capability to enhance the resolution of potential target materials detected within a larger field-of-view to verify their identification or to perform further inspections. However, the complexity of algorithms available to classify hyperspectral scenes limits the potential for real-time target detection to support rapid decision making. This research introduces and benchmarks the performance of a low-complexity method of hyperspectral image classification. The hybrid supervised–unsupervised technique approaches the performance of prevailing methods that are at least 30-fold more computationally complex.


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    Titel :

    Resolution Agile Remote Sensing for Detection of Hazardous Material Spills


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:
    Bridgelall, Raj (Autor:in) / Rafert, James B. (Autor:in) / Tolliver, Denver D. (Autor:in) / Lee, Eunsu (Autor:in)


    Erscheinungsdatum :

    01.01.2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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