We generalized Daubechies' (see IEEE Transactions on Information Theory, vol.36, no.5, p.961-1004, 1990) results on 1D wavelets to 2D, and elucidated the conditions in which a family of Gabor wavelets will provide a complete representation of an image. We found that the phase space (scale, orientation, x, y) sampling density of the striate cortical simple cells is sufficiently dense to form a tight wavelet frame. This tight frame approximates the continuous wavelet transform, and its redundancy allows high resolution information to be represented in the low-resolution firings of the simple cells. We presented some experimental results to demonstrate this idea.<>


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    Title :

    Representational strategy in the visual cortex


    Contributors:


    Publication date :

    1994-01-01


    Size :

    389923 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Representational Strategy in the Visual Cortex

    Tai Sing Lee / IEEE; Signal Processing Society | British Library Conference Proceedings | 1994


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