Multidimensional Multiscale Parser

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Multidimensional Multiscale Parser

• 1a Jornadas sobre Codificação de Imagem e Vídeo
  do Instituto de Telecomunicações (JCIVIT)?
• Leiria - 19/02/2009

Nuno Rodrigues Danillo Graziosi Nelson
Francisco Sérgio de Faria Vitor Silva Eduardo da
Silva (UFRJ)
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The Multidimensional Multiscale Parser algorithm

• The MMP (Multidimensional Multiscale Parser)
  algorithm is a universal data compression
  algorithm based on multiscale recurrent pattern
  matching
• It uses a dictionary of patterns that is
  adaptively built while the input data is encoded.
• The dictionary is updated by the inclusion of
  concatenations (in a Lempel-Ziv fashion) of
  dilated/contracted versions of input blocks
  previously encoded.
• It is able to achieve good compression
  performances for a wide range of signal types.

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The Multidimensional Multiscale Parser algorithm
D n
X n
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The Multidimensional Multiscale Parser algorithm
D n
X n
5
The Multidimensional Multiscale Parser algorithm
D n
X n
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The Multidimensional Multiscale Parser algorithm
D n
X n
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The Multidimensional Multiscale Parser algorithm
D n
X n
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The Multidimensional Multiscale Parser algorithm
D n
X n
J nD(Xn, Din)l R(Din)
Din
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The Multidimensional Multiscale Parser algorithm
X0n-1
X1n-1
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The Multidimensional Multiscale Parser algorithm
X0n-1
X1n-1
D n
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The Multidimensional Multiscale Parser algorithm
D n-1
X0n-1
X1n-1
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The Multidimensional Multiscale Parser algorithm
D n-1
X0n-1
X1n-1
J0n-1D(X0n-1, Di0n-1)l R(Di0n-1)
J1n-1D(X1n-1, Di1n-1)l R(Di1n-1)
J n-1J0n-1 J1n-1l R(f n-1)
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The Multidimensional Multiscale Parser algorithm
X n
D n-1
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The Multidimensional Multiscale Parser algorithm
X n
D n-1
X n Di0n-1 Di0n-1
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The Multidimensional Multiscale Parser algorithm
D n
X n
X n Di0n-1 Di0n-1
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The Multidimensional Multiscale Parser algorithm
D n
X n
X n Di0n-1 Di0n-1
Dictionary updating
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The Multidimensional Multiscale Parser algorithm
Output 04, 13, i0, 03, 12, i1, 02, 11, i2, i3,
11, i4
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The Multidimensional Multiscale Parser algorithm
The dictionary adapts itself to the image
patterns The scale transformations allow for the
exploitation of the self similitude properties of
the signal
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The Multidimensional Multiscale Parser algorithm

• MMP has been developed for image compression,
  where it achieves very good results for both
  smooth and non-smooth images universal feature.
• N. M. M. Rodrigues, E. A. B. da Silva, M. B. de
  Carvalho, S. M. M. de Faria and Vitor M. M.
  Silva, On Dictionary Adaptation for Recurrent
  Pattern Image Coding", IEEE Transactions on Image
  Processing, vol.17, no.9, pp.1640-1653, Sept.
  2008
• It as been successfully used in the compression
  of other signals (e.g. voice, stereoscopic
  images). Our group has recently worked on
  MMP-based ECG compression, with state-of-the-art
  compression results.
• E. B. L Filho Rodrigues, Nuno M. M. E. Silva
  Faria, S.M.M. Silva, V. M. Carvalho, ECG
  Signal Compression Based on DC Equalization and
  Complexity Sorting", IEEE Trans. on Biomedical
  Engineering, Vol. 55, No. 7, pp. 1923 - 1926,
  July, 2008.
• E. B. L. Filho, N. M. M. Rodrigues, E. A. B. da
  Silva, S. M. M. de Faria, Vitor M. M. Silva, M.
  B. de Carvalho, On ECG Signal Compression with
  One-dimensional Multiscale Recurrent Patterns
  Allied to Pre-Processing Techniques, accepted
  for publication in IEEE Transactions on
  Biomedical Engineering. 2009

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The Multidimensional Multiscale Parser algorithm

• Recently, an hybrid video encoder that uses MMP
  to compress the predicted residue was proposed.
  MMP-video achieves better results than H.264/AVC,
  especially for B slices and high compression
  ratios.

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The Multidimensional Multiscale Parser algorithm

• Some references on MMP-Video
• N. M. M. Rodrigues, E. A. B. da Silva, M. B. de
  Carvalho, S. M. M. de Faria and Vitor M. M.
  Silva, Improving H.264/AVC Inter Compression
  with Multiscale Recurrent Patterns", ICIP 2006 -
  IEEE International Conference on Image
  Processing, Atlanta, United States, October 2006.
• N. M. M. Rodrigues, E. A. B. da Silva, M. B. de
  Carvalho, S. M. M. de Faria and Vitor M. M.
  Silva, An Ecient H.264-based Video Encoder Using
  Multiscale Recurrent Patterns", SPIE Optics
  Photonics Applications of Digital Image
  Processing, San Diego, United States, August,
  2006.
• N. M. M. Rodrigues, E. A. B. da Silva, M. B. de
  Carvalho, S. M. M. de Faria and Vitor M. M.
  Silva, H.264/AVC Based Video Coding Using
  Multiscale Recurrent Patterns First Results",
  VLBV 2005, Lecture Notes on Computer Science,
  vol. 3893, pp 107-114, Luigi Atzori, Daniel D.
  Giusto, Riccardo Leonardi, Fernando Pereira
  (Eds.), ISBN 3-540-33578-1, Springer-Verlag,
  2006.

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Multidimensional Multiscale Parser

• 1a Jornadas sobre Codificação de Imagem e Vídeo
  do Instituto de Telecomunicações (JCIVIT)?
• Leiria - 19/02/2009

Nuno Rodrigues Danillo Graziosi Nelson
Francisco Sérgio de Faria Vitor Silva Eduardo da
Silva (UFRJ)