The determination of the appropriate sampling rate for image data is often problematic because the traditional band-limited reconstruction approach for data sampled above the Nyquist frequency cannot be applied to sources which are not band-limited. High contrast edges play an important role in image content definition, and these sharp edges in an image source would theoretically require an unbounded spatial frequency range. The paper presents a theoretical argument supported by several examples for selecting a different minimum sampling frequency for grey scale and binary image acquisition. Implications with respect to image acquisition, image processing, and image compression are discussed.<>


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    Title :

    A comparison of resolution requirements for boundary estimation from binary and grey scale images


    Contributors:
    Wood, S.L. (author)


    Publication date :

    1994-01-01


    Size :

    544885 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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