This paper presents an approach that uses conformal mapping to parameterize a document's 3D shape to a 2D plane. Using this conformal parametrization, a restorative mapping between an image of the distorted document and a "flattened" representation of the document can be computed and used to deskew the image. Our experiments show that arbitrarily distorted documents can be restored to within a single pixel of their true planar format. In addition, surface points can be constrained to map to specified locations in the restored 2D plane.


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    Title :

    Conformal deskewing of non-planar documents


    Contributors:
    Brown, M.S. (author) / Pisula, C.J. (author)


    Publication date :

    2005-01-01


    Size :

    1302032 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English