Illumination changes are a ubiquitous problem in computer vision. They present a challenge in many applications, including tracking: for example, an object may move in and out of a shadow. We present a new tracking algorithm which is insensitive to illumination changes, while at the same time using all of the available photometric information. The algorithm is based on computing an illumination-invariant optical flow field; the computation is made robust by using a graph cuts formulation. Experimentally, the new technique is shown to quite reliable in both synthetic and real sequences, dealing with a variety of illumination changes that cause problems for density based trackers.


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    Title :

    Illumination-invariant tracking via graph cuts


    Contributors:
    Freedman, D. (author) / Turek, M.W. (author)


    Publication date :

    2005-01-01


    Size :

    246434 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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