Thumwarin, Pitak

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Thumwarin, Pitak
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Thumwarin, P.
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pitak.th@kmitl.ac.th

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    Item type:Publication,
    FIR firearm identification system
    (2009-01-01)
    Thumwarin, P.
    ;
    Prasit, C.
    ;
    Suwanvesh, T.
    ;
    Matsuura, T.
    We propose a FIR(Finite impulse response) firearm identification system. The firearm can be identified by using the impulse response of the FIR system characterizing the rotation invariant feature of the cartridge case image. In this case, the rotation invariant feature can be extracted by the magnitude of Fourier coefficients of polar image of the cartridge. Then the obtained Fourier coefficients are used as the input and the output of the FIR system. The impulse response of the FIR system is used as the unique feature for firearm identification. Finally, the firearm can be identified by the Fisher's linear discriminant function. The experimental results are taken to show the effectiveness of the proposed method.