Periodic or symmetric extensions are commonly used for processing images and other finite-length signals with a paraunitary filter bank (PUFB). Unlike infinite-length signals, PUFBs applied to finite-length signals will not necessarily lead to an orthogonal system. The authors show that for symmetric extensions, orthogonality is only possible for special PUFBs based on linear-phase filters. They also discuss implementation issues.<>


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    Title :

    On symmetric extensions orthogonal transforms of images, and paraunitary filter banks


    Contributors:


    Publication date :

    1994-01-01


    Size :

    423350 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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