This paper develops new theory for the optimal placement of photometric stereo lighting in the presence of camera noise. We show that for three lights, any triplet of orthogonal light directions minimises the uncertainty in scaled normal computation. The assumptions are that the camera noise is additive and normally distributed, and uncertainty is defined as the expectation of squared distance of scale normal to the ground truth. If the camera noise is of zero mean and variance /spl sigma//sup 2/ the optimal (minimum) uncertainty in the scaled normal is 3/spl sigma//sup 2/ For case of n > 3 lights, we show that the minimum uncertainty is 9/spl sigma//sup 2/n, and identify sets of light configurations which reach this theoretical minimum.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    On optimal light configurations in photometric stereo


    Beteiligte:
    Drbohlav, O. (Autor:in) / Chantler, M. (Autor:in)


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    162348 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    On Optimal Light Configurations in Photometric Stereo

    Drbohlav, O. / Chantler, M. / IEEE | British Library Conference Proceedings | 2005


    Polarisation photometric stereo

    Atkinson, Gary A. | British Library Online Contents | 2017


    Robust photometric stereo using structural light sources

    Han, T.-Q. / Cheng, Y. / Shen, H.-L. et al. | British Library Online Contents | 2014


    Resolution-Enhanced Photometric Stereo

    Tan, Ping / Lin, Stephen / Quan, Long | Springer Verlag | 2006

    Freier Zugriff

    Resolution-Enhanced Photometric Stereo

    Tan, P. / Lin, S. / Quan, L. | British Library Conference Proceedings | 2006