We investigate the implications of a unified spatiotemporal-chromatic basis for compression and reconstruction of image sequences. Different adaptive methods (PCA and ICA) are applied to generate basis functions. While typically such bases with spatial and temporal extent are investigated in terms of their correspondence to human visual perception, here we are interested in their applicability to multimedia encoding. The performance of the extracted spatiotemporal-chromatic patch bases is evaluated in terms of quality of reconstruction with respect to their potential for data compression. The results discussed here are intended to provide another path towards perceptually-based encoding of visual data by examining the interplay of chromatic features with spatiotemporal ones in data reduction.


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    Title :

    Spatiotemporal-chromatic structure of natural scenes


    Contributors:
    Bergner, S. (author) / Drew, M.S. (author)


    Publication date :

    2005-01-01


    Size :

    291821 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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