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Wavelet-Based Video Compression Using Long-Term Memory Motion-Compensated Prediction and Context-Based Adaptive Arithmetic Coding

  • Detlev Marpe
  • Thomas Wiegand
  • Hans L. Cycon
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2251)

Abstract

In this paper, we present a novel design of a wavelet-based video coding algorithm within a conventional hybrid framework of temporal motion-compensated prediction and transform coding. Our proposed algorithm involves the incorporation of multi-frame motion compensation as an effective means of improving the quality of the temporal prediction. In addition, we follow the rate-distortion optimizing strategy of using a Lagrangian cost function to discriminate between different decisions in the video encoding process. Finally, we demonstrate that context-based adaptive arithmetic coding is a key element for fast adaptation and high coding efficiency. The combination of overlapped block motion compensation and frame-based transform coding enables blocking-artifact free and hence subjectively more pleasing video. In comparison with a highly optimized MPEG-4 (Version 2)coder, our proposed scheme provides significant performance gains in objective quality of 2.0-3.5 dB PSNR.

Keywords

Video Code Arithmetic Code PSNR Gain Block Motion Estimation Binary Arithmetic Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Detlev Marpe
    • 1
  • Thomas Wiegand
    • 1
  • Hans L. Cycon
    • 2
  1. 1.Image Processing DepartmentHeinrich-Hertz-Institute (HHI)for Communication TechnologyBerlinGermany
  2. 2.University of Applied Sciences (FHTW Berlin)BerlinGermany

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