Prediction of transmission distortion for wireless video communication: Algorithm and application

  • Authors:

  • Zhifeng Chen;Dapeng Wu

  • Affiliations:

  • Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, United States;Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, United States

  • Venue:
  • Journal of Visual Communication and Image Representation
  • Year:
  • 2010

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Abstract

In this paper, we develop algorithms for estimating transmission distortion in wireless video communication systems. By leveraging the analytical results obtained in our previous works, we design low complexity algorithms that are capable of estimating transmission distortion accurately. We also extend our algorithm for pixel-level transmission distortion estimation to pixel-level end-to-end distortion estimation. Furthermore, we apply our pixel-level end-to-end distortion estimation algorithm to prediction mode decision in H.264 encoder. Experimental results show that (1) our transmission distortion estimation algorithm is more accurate and more robust against inaccurate channel estimation than existing distortion estimation algorithms; (2) our mode decision algorithm achieves remarkable PSNR gain over the existing algorithms for prediction mode decision in H.264 encoder, e.g., an average PSNR gain of 1.44dB for 'foreman' sequence when Packet Error Probability (PEP) equals 5%.