Basic consideration for lossless re-encoding of MPEG coded files using V-V codes

Kazuo Ohzeki, Yuǎn Yù Wei, Ulrich Speidel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Re-encoding of once compressed files is one of the difficult challenges in measuring the efficiency of coding methods. Variable length coding with variable source delimiting schemes is a promising method for improving re-encoding efficiency. Motion vector codes of MPEG-2 encoded files are modified as a variable-to-variable coding point of view. 23% improvement of coding efficiency is obtained.

Original languageEnglish
Title of host publicationProc. of the IADIS Int. Conf. - Computer Graphics, Visualization, Computer Vision and Image Processing, CGVCVIP 2010, Visual Commun., VC 2010, Web3DW 2010, Part of the MCCSIS 2010
Pages529-531
Number of pages3
Publication statusPublished - 2010 Dec 1
EventIADIS Int. Conf. - Computer Graphics, Visualization, Computer Vision and Image Processing, CGVCVIP 2010, Visual Commun., VC 2010, Web Virtual Reality and Three-Dimensional Worlds, Web3DW 2010, Part of the MCCSIS 2010 - Freiburg, Germany
Duration: 2010 Jul 272010 Jul 29

Publication series

NameProc. of the IADIS Int. Conf. - Computer Graphics, Visualization, Computer Vision and Image Processing, CGVCVIP 2010, Visual Commun., VC 2010, Web3DW 2010, Part of the MCCSIS 2010

Conference

ConferenceIADIS Int. Conf. - Computer Graphics, Visualization, Computer Vision and Image Processing, CGVCVIP 2010, Visual Commun., VC 2010, Web Virtual Reality and Three-Dimensional Worlds, Web3DW 2010, Part of the MCCSIS 2010
CountryGermany
CityFreiburg
Period10/7/2710/7/29

Keywords

  • Entropy
  • Image compression
  • Image processing
  • Re-encoding
  • Variable-length codes

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Information Systems

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