Scene-cut processing in motion-compensated temporal filtering

  • Authors:

  • Maria Trocan;Béatrice Pesquet-Popescu

  • Affiliations:

  • Signal and Image Processing Department, ENST, Paris, France;Signal and Image Processing Department, ENST, Paris, France

  • Venue:
  • ACIVS'05 Proceedings of the 7th international conference on Advanced Concepts for Intelligent Vision Systems
  • Year:
  • 2005

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Abstract

Motion-compensated temporal filtering (MCTF) is a powerful technique entering scalable video coding schemes. However, its performance decreases significantly if the video signal correlation is poor and, in particular, when scene-cuts occur. In this paper we propose an improved structure for MCTF by detecting and processing the scene-cuts that may appear in video sequences. It significantly reduces the ghosting artefacts in the temporal approximation subband frames, providing a higher quality temporal scalability, and dramatically improves the global coding efficiency when such abrupt transitions happen.