Temporal segmentation of MPEG video streams

Authors:
Janko Calic;Ebroul Izquierdo
Affiliations:
Multimedia and Vision Research Lab, Department of Electronic Engineering, Queen Mary, University of London, London, UK;Multimedia and Vision Research Lab, Department of Electronic Engineering, Queen Mary, University of London, London, UK
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2002

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Abstract

Many algorithms for temporal video partitioning rely on the analysis of uncompressed video features. Since the information relevant to the partitioning process can be extracted directly from the MPEG compressed stream, higher efficiency can be achieved utilizing information from the MPEG compressed domain. This paper introduces a real-time algorithm for scene change detection that analyses the statistics of the macroblock features extracted directly from the MPEG stream. A method for extraction of the continuous frame difference that transforms the 3D video stream into a 1D curve is presented. This transform is then further employed to extract temporal units within the analysed video sequence. Results of computer simulations are reported.