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A self-governing rate buffer control strategy for pseudoconstant bit rate video coding.

C T Chen1, A Wong

  • 1Bellcore, Red Bank, NJ.

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|January 1, 1993
PubMed
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This study introduces a self-governing buffer control strategy for interframe video coding, achieving a pseudoconstant bit rate for studio-quality video transmission. This method ensures smoother quality transitions in video communications.

Area of Science:

  • Video Coding
  • Digital Signal Processing
  • Multimedia Communications

Background:

  • Interframe video coding is crucial for visual communications, but often results in variable bit rates without buffer control.
  • Constant bit rates are desirable for specific applications requiring simpler network configurations or fixed bandwidth channels.

Purpose of the Study:

  • To investigate a self-governing rate buffer control strategy for interframe video coding.
  • To achieve a pseudoconstant bit rate for studio-quality video transmission at over 5 Mb/s.

Main Methods:

  • Utilizing a hybrid motion-compensated prediction and interpolation algorithm.
  • Implementing a self-governing rate buffer control strategy with progressive quantization parameters.
  • Constraining quantizer adjustments for smoother quality transitions.

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Main Results:

  • The proposed buffer control strategy effectively steers the video coder towards a pseudoconstant bit rate.
  • Simulation results demonstrate the successful performance of the pseudoconstant bit rate coder.
  • Smoother quality transitions were attained due to constrained quantizer adjustments.

Conclusions:

  • The self-governing rate buffer control strategy is effective for achieving pseudoconstant bit rates in interframe video coding.
  • This approach enhances video communication systems by providing more predictable bit rates.
  • The method offers a viable solution for applications demanding stable bandwidth utilization.