MPEG-2 compressed-domain algorithms for video analysis

  • Authors:
  • Wolfgang Hesseler;Stefan Eickeler

  • Affiliations:
  • Fraunhofer IMK, Schloss Birlinghoven, Sankt Augustin, Germany;Fraunhofer IMK, Schloss Birlinghoven, Sankt Augustin, Germany

  • Venue:
  • EURASIP Journal on Applied Signal Processing
  • Year:
  • 2006

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Abstract

This paper presents new algorithms for extracting metadata from video sequences in the MPEG-2 compressed domain. Three algorithms for efficient low-level metadata extraction in preprocessing stages are described. The first algorithm detects camera motion using the motion vector field of an MPEG-2 video. The second method extends the idea of motion detection to a limited region of interest, yielding an efficient algorithm to track objects inside video sequences. The third algorithm performs a cut detection using macroblock types and motion vectors.