We present a hierarchical approach for feature description and stereo matching in computer vision. Hierarchy is first used to make a high-level description of the scene. Edge pixels and lines are extracted and grouped into higher level symbolic descriptions: L-junctions, facets, surfaces. Because they are fewer in number and more significant, high-level features are easier to match, and help reduce matching ambiguity. Thus, the matching process is hierarchical: it starts with surfaces at the highest level, and is propagated down to lines at the lowest level. To determine the best order of matching, a control strategy is defined by classifying high-level features into areas of attention according to certainty and confidence criteria. Thus better formed features are matched first.


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    Titel :

    Hierarchical feature grouping for stereo matching


    Beteiligte:
    Hamrouni, Z. (Autor:in)


    Erscheinungsdatum :

    01.01.1996


    Format / Umfang :

    797951 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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