In this paper, a novel method to enhance license plate numbers of moving vehicles in real traffic videos is proposed. A high-resolution image of the number plate is obtained by fusing the information derived from multiple, subpixel shifted, and noisy low-resolution observations. The image to be superresolved is modeled as a Markov random field and is estimated from the observations by a graduated nonconvexity optimization procedure. A discontinuity adaptive regularizer is used to preserve the edges in the reconstructed number plate for improved readability. Experimental results are given on several traffic sequences to demonstrate the robustness of the proposed method to potential errors in motion and blur estimates. The method is computationally efficient as all operations can be implemented locally in the image domain.


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    Titel :

    Superresolution of license plates in real traffic videos


    Beteiligte:
    Suresh, K.V. (Autor:in) / Kumar, G.M. (Autor:in) / Rajagopalan, A.N. (Autor:in)


    Erscheinungsdatum :

    2007


    Format / Umfang :

    11 Seiten, 32 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Superresolution of License Plates in Real Traffic Videos

    Suresh, K.V. / Kumar, G.M. / Rajagopalan, A.N. | IEEE | 2007





    Discrete algebraic reconstruction technique: a new approach for superresolution reconstruction of license plates

    Zefreh, K.Z. / van Aarle, W. / Batenburg, K.J. et al. | British Library Online Contents | 2013