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    Urban multitarget tracking via gas-kinetic dynamics models

    Access Status
    Fulltext not available
    Authors
    Mahler, Ronald
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Mahler, R. 2013. Urban multitarget tracking via gas-kinetic dynamics models.
    Source Title
    Proceedings of SPIE - The International Society for Optical Engineering
    DOI
    10.1117/12.2015448
    ISBN
    9780819495365
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/55466
    Collection
    • Curtin Research Publications
    Abstract

    Multitarget tracking in urban environments presents a major theoretical and practical challenge. A recently suggested approach is that of modeling traffic dynamics using the fluid-kinetic methods of traffic-flow theory (TFT). I propose use of the newer, more general, gas-kinetic (GK) approach to TFT. In GK, traffic flow is modeled as a one- or two-dimensional constrained gas. The paper demonstrates the following. (1) The foundational concept in GK-the "phase-space density"-is the same thing as the probability hypothesis density (PHD) of multitarget tracking theory. (2) The theoretically best-that-one-can do approach to TFT-based tracking is a PHD filter. (3) Better performance can be obtained by augmenting this PHD filter as a cardinalized PHD (CPHD) filter. A simple example is presented to illustrate how PHD/CPHD filters can be integrated with conventional macroscopic, mesoscopic, and microscopic TFT. © 2013 SPIE.

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