In this paper, we present a new and efficient demosaicking algorithm for color filter array (CFA). To render a full-resolution color image using a single-chip camera, the missing color information must be estimated from the surrounding pixels. We take advantage of the observation that the color image has strong inter-channel correlation in the high-frequency subbands. For each color channel, the missing colors are synthesized from the wavelet subbands. The low-frequency subband is estimated by conventional interpolation techniques using intra-channel data. The high-frequency subbands are estimated from the inter-channel data with consideration of the CFA pattern. The algorithm is adaptive in nature and produce superior full-resolution image when compared to other demosaicking techniques.


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    Title :

    Color filter array demosaicking using wavelet-based subband synthesis


    Contributors:
    Li Chen, (author) / Kim-Hui Yap, (author) / Yu He, (author)


    Publication date :

    2005-01-01


    Size :

    366281 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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