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Proceedings Paper

Object-based video: extraction tools, evaluation metrics and applications
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Paper Abstract

The representation of video information in terms of its content is at the foundation of many multimedia applications, such as broadcasting, content-based information retrieval, interactive video, remote surveillance and entertainment. In particular, object-based representation consists in decomposing the video content into a collection of meaningful objects. This approach offers a broad range of capabilities in terms of access, manipulation and interaction with the visual content. The basic difference when compared with pixel-based procedures is that instead of processing individual pixels, image objects are used in the representation. To exploit the benefits of object-based representation, multimedia applications need automatic techniques for extracting such objects from video data, a problem that still remains largely unsolved. In this paper, we first review the extraction techniques that enable the separation of foreground objects from the background. Their field of applicability and their limitations are discussed. Next, automatic tools for evaluating their performances are introduced. The major applications that benefit from an object-based approach are then analysed. Finally, we discuss some open research issues in object-based video.

Paper Details

Date Published: 23 June 2003
PDF: 8 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.509853
Show Author Affiliations
Andrea Cavallaro, Swiss Federal Institute of Technology Lausanne (Switzerland)
Touradj Ebrahimi, Swiss Federal Institute of Technology Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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