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Video Denoising and Simplification Via Discrete Regularization on Graphs

  • Mahmoud Ghoniem
  • Youssef Chahir
  • Abderrahim Elmoataz
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5259)

Abstract

In this paper, we present local and nonlocal algorithms for video denoising and simplification based on discrete regularization on graphs. The main difference between video and image denoising is the temporal redundancy in video sequences. Recent works in the literature showed that motion compensation is counter-productive for video denoising. Our algorithms do not require any motion estimation. In this paper, we consider a video sequence as a volume and not as a sequence of frames. Hence, we combine the contribution of temporal and spatial redundancies in order to obtain high quality results for videos. To enhance the denoising quality, we develop a robust method that benefits from local and nonlocal regularities within the video. We propose an optimized method that is faster than the nonlocal approach, while producing equally attractive results. The experimental results show the efficiency of our algorithms in terms of both Peak Signal to Noise Ratio and subjective visual quality.

Keywords

Video Sequence Motion Estimation Weighted Graph Temporal Redundancy Attractive Result 
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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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Mahmoud Ghoniem
    • 1
  • Youssef Chahir
    • 1
  • Abderrahim Elmoataz
    • 1
  1. 1.GREYC - CNRS UMR 6072CAEN CEDEX

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