Current methods for shape-based image retrieval are restricted to images containing 2-D objects. We propose a novel approach to querying images containing 3-D objects, based on a view-based encoding of a finite domain of 3-D parts used to model the 3-D objects appearing in images. To build a query, the user manually identifies the salient parts of the object in a query image. The extracted views of these parts are then used to hypothesize the 3-D identities of the parts which, in turn, are used to hypothesize other possible views of the parts. The resulting set of part views, along with their spatial relations (constraints) in the query image, form a composite query that is passed to the image database. Images containing objects with the same parts (in any view) with similar spatial relations are returned to the user. The resulting viewpoint invariant indexing technique does not require training the system for all possible views of each object. Rather, the system requires only knowledge of the possible views for a finite vocabulary of 3-D parts from which the objects are constructed.


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    Title :

    Viewpoint-invariant indexing for content-based image retrieval


    Contributors:


    Publication date :

    1998-01-01


    Size :

    1470485 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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