Model - Based Detection and Correction of Corrupted WaveletCoe

نویسندگان

  • Norbert Strobel
  • Sanjit K. Mitra
چکیده

Image decomposition based on the discrete wavelet transform (DWT) has been proposed for eecient storage and progressive transmission of images for visual browsing in digital image libraries. Although the compression aspects of the DWT have been carefully researched, reconstruction errors due to corrupted wavelet coeecients have received less attention. In this paper we consider the problem of bit errors aaecting uniformly quantized wavelet coeecients. The proposed method, which is based on a local image model, simultaneously detects and masks corrupted wavelet coee-cients.

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تاریخ انتشار 1997