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Related Experiment Videos

Selective error detection for error-resilient wavelet-based image coding.

Lina J Karam1, Tuyet-Trang Lam

  • 1Department of Electrical Engineering, Arizona State University, Tempe, AZ 85287-5706, USA. karam@asu.edu

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|December 21, 2007
PubMed
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This study presents a new similarity check function for error-resilient multimedia transmission. The proposed method reduces data retransmissions and improves image quality over noisy channels.

Area of Science:

  • Multimedia data transmission
  • Image processing
  • Error resilience

Background:

  • Multimedia data transmission over noisy channels often suffers from data corruption.
  • Existing Automatic Repeat reQuest (ARQ) schemes can lead to high retransmission rates and reduced visual quality.

Purpose of the Study:

  • To introduce a novel similarity check function for error-resilient multimedia data transmission.
  • To design a perceptual similarity check function for wavelet-based coders like JPEG2000.
  • To develop a progressive similarity-based ARQ (ProS-ARQ) scheme to enhance image transmission quality and reduce retransmissions.

Main Methods:

  • Development of a similarity check function to assess data corruption at the receiver without source knowledge.
  • Integration of the similarity check function into a progressive similarity-based ARQ (ProS-ARQ) scheme.

Related Experiment Videos

  • Simulations using JPEG2000-coded images transmitted over a Binary Symmetric Channel.

    • Main Results:

    • The ProS-ARQ scheme significantly decreases the retransmission rate of corrupted data.
    • The proposed scheme maintains very good visual quality of transmitted images over noisy channels.
    • Compared to conventional ARQ schemes, ProS-ARQ shows significantly fewer retransmissions and higher PSNR for the same number of retransmitted packets.

    Conclusions:

    • The proposed similarity check function and ProS-ARQ scheme offer an effective solution for error-resilient multimedia transmission.
    • ProS-ARQ outperforms traditional ARQ methods in reducing retransmissions and enhancing image quality.
    • This approach is particularly beneficial for transmitting images over unreliable networks.