In many cases self-calibration is not able to yield a unique solution for the 3D reconstruction of a scene. This is due to the occurrence of critical motion sequences. If this is the case, an ambiguity is left on the reconstruction. In this paper we derive under which conditions correct novel views can be generated from ambiguous reconstructions. The problem is first approached from a theoretical point of view: It is proven that novel views are correct as long as the inclusion of the next view the sequence yields the same ambiguity on the reconstruction. The problem is therefore much related to the problem of critical motion sequences since the virtual camera can be arbitrarily moved within the smallest critical motion set that the recovered camera motion without distortions becoming visible. Based on these results a practical measure for the expected ambiguity on a novel view generated from the recovered structure and motion is derived. As an application a viewer was built that indicates if a specific novel view can be trusted or not by altering the background color.


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    Title :

    Do ambiguous reconstructions always give ambiguous images?


    Contributors:


    Publication date :

    2001-01-01


    Size :

    850864 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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