In this paper an objective metric to measure the perceptual quality of watermarked 3D meshes is presented. The metric, which is based on a black-box approach, relies on the measurement of the roughness of 3D meshes before and after the insertion of the watermark. To calibrate the metric and to validate it, a set of psychovisual experiments has been carried out. Due to the lack of prior work in this field, a new methodology for the subjective evaluation of the quality of watermarked 3D objects is introduced. The validity of the proposed metric has been tested against a number of different 3D watermarking algorithms, showing an excellent match with the subjective evaluation of the quality stemming from the psychovisual experiments.


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    Title :

    Objective evaluation of the perceptual quality of 3D watermarking


    Contributors:
    Gelasca, E.D. (author) / Ebrahimi, T. (author) / Corsini, M. (author) / Barni, M. (author)


    Publication date :

    2005-01-01


    Size :

    127032 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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