We present a theory of generalized non-separable two dimensional (2-D) discrete Gabor expansions (DGE). We show that a DGE is essentially a general frame decomposition. Using this theory, we show that a non-separable 2-D analysis sequence can also be the translation and modulation of a single 2-D function /spl gamma/. A novel algorithm for computing all possible nonseparable 2-D /spl gamma/ is also derived. The non-separable 2-D DGE scheme is useful, e.g., in applications where the orientation of the 2-D Gabor analysis window is important.<>


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    Title :

    A generalized non-separable 2-D discrete Gabor expansion for image representation and compression


    Contributors:
    Shidong Li (author)


    Publication date :

    1994-01-01


    Size :

    409798 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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