A spatially adaptive image deblurring algorithm is presented for Poisson observations. It adapts to the unknown image smoothness by using local polynomial approximation (LPA) kernel estimates of varying scale and direction based on the intersection of confidence intervals (ICI) rule. The signal-dependant characteristics of the Poissonian noise are exploited to accurately compute the pointwise variances of the directional estimates. The results show that this accurate pointwise adaptive algorithm significantly improves the image restoration quality.


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    Title :

    A spatially adaptive Poissonian image deblurring


    Contributors:
    Foi, A. (author) / Alenius, S. (author) / Trimeche, M. (author) / Katkovnik, V. (author) / Egiazarian, K. (author)


    Publication date :

    2005-01-01


    Size :

    330716 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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