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  • Research Article
  • Open Access

3D Scan-Based Wavelet Transform and Quality Control for Video Coding

EURASIP Journal on Advances in Signal Processing20032003:670972

  • Received: 4 March 2002
  • Published:


Wavelet coding has been shown to achieve better compression than DCT coding and moreover allows scalability. 2D DWT can be easily extended to 3D and thus applied to video coding. However, 3D subband coding of video suffers from two drawbacks. The first is the amount of memory required for coding large 3D blocks; the second is the lack of temporal quality due to the sequence temporal splitting. In fact, 3D block-based video coders produce jerks. They appear at blocks temporal borders during video playback. In this paper, we propose a new temporal scan-based wavelet transform method for video coding combining the advantages of wavelet coding (performance, scalability) with acceptable reduced memory requirements, no additional CPU complexity, and avoiding jerks. We also propose an efficient quality allocation procedure to ensure a constant quality over time.


  • scan-based DWT
  • 3D subband coding
  • quality control
  • video coding

Authors’ Affiliations

Laboratoire I3S, UMR 6070, (CNRS, Université de Nice-Sophia Antipolis), Bât. Algorithmes/Euclide 2000, route des Lucioles, Sophia Antipolis Cedex, BP 121, F-06903, France


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