This paper describes a method for dense depth reconstruction from a small set of wide-baseline images. In a wide-baseline setting an inherent difficulty which complicates the stereo-correspondence problem is self-occlusion. Also, we have to consider the possibility that image pixels in different images, which are projections of the same point in the scene, will have different color values due to non-Lambertian effects or discretization errors. We propose a Bayesian approach to tackle these problems. In this framework, the images are regarded as noisy measurements of an underlying 'true' image-function. Also, the image data is considered incomplete, in the sense that we do not know which pixels from a particular image are occluded in the other images. We describe an EM-algorithm, which iterates between estimating values for all hidden quantities, and optimizing the current depth estimates. The algorithm has few free parameters, displays a stable convergence behavior and generates accurate depth estimates. The approach is illustrated with several challenging real-world examples. We also show how the algorithm can generate realistic view interpolations and how it merges the information of all images into a new, synthetic view.


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    Titel :

    Wide-baseline stereo from multiple views: A probabilistic account


    Beteiligte:
    Strecha, C. (Autor:in) / Fransens, R. (Autor:in) / Van Gool, L. (Autor:in)


    Erscheinungsdatum :

    01.01.2004


    Format / Umfang :

    992563 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Wide-Baseline Stereo from Multiple Views: A Probabilistic Account

    Strecha, C. / Fransens, R. / Van Gool, L. et al. | British Library Conference Proceedings | 2004


    Wide baseline stereo matching

    Pritchett, P. / Zisserman, A. | IEEE | 1998


    Dense matching of multiple wide-baseline views

    Strecha, / Tuytelaars, / Van Gool, | IEEE | 2003


    Wide Baseline Stereo Matching

    Pritchett, P. / Zisserman, A. / IEEE; Computer Society | British Library Conference Proceedings | 1998


    Dense Matching of Multiple Wide-baseline Views

    Strecha, C. / Tuytelaars, T. / Van Gool, L. et al. | British Library Conference Proceedings | 2003