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New temporal filtering scheme to reduce delay in wavelet-based video coding.

Vidhya Seran1, Lisimachos P Kondi

  • 1Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA. vseran@eng.buffalo.edu

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|December 21, 2007
PubMed
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This study introduces a new temporal filter set for 3-D wavelet-based video coding, significantly reducing delay while maintaining high compression efficiency for scalable video. The novel filters minimize latency for real-time applications without introducing group-of-frame boundary effects.

Area of Science:

  • Digital video compression
  • Signal processing
  • Wavelet transforms

Background:

  • Scalable video coding is crucial for efficient transmission and storage.
  • Wavelet-based motion-compensated temporal filtering offers high compression but suffers from significant delay.
  • Existing methods are often unsuitable for real-time applications due to latency.

Purpose of the Study:

  • To propose a novel temporal filter set for 3-D wavelet-based video coding.
  • To minimize coding delay without compromising compression efficiency.
  • To address the limitations of current temporal filtering schemes in scalable video codecs.

Main Methods:

  • Development of a new temporal filter set for 3-D wavelet video coding.
  • Variable filter length adaptable to specific delay requirements.

Related Experiment Videos

  • Processing frames in groups of frames (GOFs) to mitigate boundary effects.

    • Main Results:

    • The proposed filter set achieves performance comparable to existing longer filters.
    • Achieved significant reduction in delay for scalable video coding.
    • Eliminated boundary effects at Group of Frames (GOF) boundaries.

    Conclusions:

    • The new temporal filter set effectively minimizes delay in 3-D wavelet-based video coding.
    • The proposed method provides a viable solution for real-time scalable video applications.
    • Offers flexibility in filter length to meet diverse application needs.