• DocumentCode
    3617348
  • Title

    Adaptive MAP error concealment for dispersively packetized images

  • Author

    I.V. Bajic

  • Author_Institution
    ECE Dept., Miami Univ., Coral Gables, FL, USA
  • fYear
    2004
  • fDate
    6/26/1905 12:00:00 AM
  • Firstpage
    52
  • Lastpage
    59
  • Abstract
    In this paper we present an adaptive maximum a posteriori (MAP) error concealment algorithm for dispersively packetized wavelet-coded images. We model the subbands of a wavelet-coded image as Markov random fields, and use the characteristics of subband/wavelet samples to adapt the potential functions locally. The resulting MAP estimation gives PSNR advantages of up to 0.7 dB compared to the competing algorithms. Visual quality of the reconstructed images is also improved.
  • Keywords
    "Image coding","Streaming media","Automatic repeat request","Forward error correction","Wavelet packets","Markov random fields","Image reconstruction","Error correction","Dispersion","Frequency"
  • Publisher
    ieee
  • Conference_Titel
    Multimedia Software Engineering, 2004. Proceedings. IEEE Sixth International Symposium on
  • Print_ISBN
    0-7695-2217-3
  • Type

    conf

  • DOI
    10.1109/MMSE.2004.22
  • Filename
    1376640
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3617348