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Feature-oriented multiple description wavelet-based image coding.

Yilong Liu1, Soontorn Oraintara

  • 1Department of Electrical Engineering, University of Texas at Arlington 76019-0016, USA. yilong@msp.uta.edu

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|February 8, 2007
PubMed
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This study introduces a new feature-oriented multiple description coding (FO-MDC) method for resilient image transmission over unreliable networks. The FO-MDC coder enhances image quality and robustness against packet loss, outperforming existing methods.

Area of Science:

  • Digital Signal Processing
  • Image Compression
  • Network Communications

Background:

  • Packet loss in error-prone networks significantly degrades image quality.
  • Multiple Description Coding (MDC) is a promising technique for enhancing transmission resilience.
  • Existing MDC methods may not optimally handle the varying sensitivity of image data to loss.

Purpose of the Study:

  • To develop a novel wavelet-based MDC technique for improved resilient image coding.
  • To introduce the feature-oriented MDC (FO-MDC) for efficient packet loss handling.
  • To enhance image transmission robustness over packet-erasure channels.

Main Methods:

  • Developed a wavelet-based MDC coder (FO-MDC) exploiting wavelet coefficient statistics.
  • Identified packet loss-sensitive coefficient subsets.

Related Experiment Videos

  • Employed joint optimization of tree-pruning and quantizer selection for bit allocation.

    • Main Results:

    • The FO-MDC coder demonstrated superior rate-distortion control compared to state-of-the-art methods.
    • Achieved enhanced robustness for image transmission, even with high packet loss ratios.
    • Showcased efficient handling of sensitive image data subsets.

    Conclusions:

    • The proposed FO-MDC offers a more efficient and robust solution for image coding over error-prone networks.
    • This method is well-suited for protecting multimedia streams in challenging network conditions.
    • FO-MDC provides a significant advancement in resilient image transmission technology.