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Bit-Rate Control Algorithm for ROI Enabled Video Coding

  • Adam Pietrowcew
  • Andrzej Buchowicz
  • Władysław Skarbek
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3691)

Abstract

The bit-rate control algorithm allowing ROI encoding in a video sequence has been presented in this paper. The algorithm distributes available bit budget among image layers taking into consideration both the distance from ROI and the local image complexity. It improves the image quality in ROI by lowering the image quality outside ROI with the preservation of the global constraint of the encoded stream bit-rate and the gradual quality degradation outside ROI.

Keywords

Video Sequence Type Frame Quantization Index Rate Control Algorithm PSNR Measure 
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

  1. 1.
    He, Z., Mitra, S.K.: A unified rate-distortion analysis framework for transform coding. IEEE Trans. on Circuits and Systems for Video Technology 11, 1221–1236 (2001)CrossRefGoogle Scholar
  2. 2.
    ISO/IEC: Generic Coding of Audiovisual Objects Part 10: Advanced Video Coding (MPEG-4 AVC), ISO/IEC 14496-10 (2003)Google Scholar
  3. 3.
    H.264/AVC: Software coordination (2004), http://iphome.hhi.de/suehring/tml/
  4. 4.
    Li, Z., Pan, F., Lim, K.P., Feng, G., Lin, X., Rahardja, S.: Adaptive basic unit layer rate control for JVT. In: JVT-G012-r1, Pattaya, Thailand (2003)Google Scholar
  5. 5.
    Bobinski, P., Skarbek, W.: Analysis of rd models for coding efficiency in h.264 standard. In: International Workshop on Image Analysis for Multimedia Interactive Services WIAMIS 2004, Lisboa, Portugal (2004)Google Scholar
  6. 6.
    Skarbek, W., Buchowicz, A., Pietrowcew, A., Pereira, F.: Bit-rate control for compression of video with ROI. In: International Conference on Computer Vision and Graphics ICCVG 2004, Warszawa, Poland (2004)Google Scholar
  7. 7.
    Pietrowcew, A., Buchowicz, A., Skarbek, W.: Bit-rate control for video coding with ROI. In: International Workshop on Image Analysis for Multimedia Interactive Services WIAMIS 2005, Montreux, Switzerland (2005)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Adam Pietrowcew
    • 1
  • Andrzej Buchowicz
    • 1
  • Władysław Skarbek
    • 1
  1. 1.Institute of RadioelectronicsWarsaw University of TechnologyWarszawaPoland

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