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Proceedings Paper

Capture-time indexing paradigm, authoring tool, and browsing environment for digital broadcast video
Author(s): Michael Carreira; John E. Casebolt; Gerard Desrosiers; Thomas D.C. Little
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Paper Abstract

Historically, Multimedia Video-on-Demand (VOD) systems have considered stream indexing as an authoring activity, decomposing monolithic streams containing no explicit indexing information. This paper suggests a scheme for 'up-front,' capture-time indexing of digital video streams, whereby the indexing information logically becomes part of the stream. This approach takes advantage of the sequential, temporal nature of capture and the knowledge of the stream recorder to empower further manipulation and playout of the stream. We explore the impact of capture-time indices, and implement a sample format in a Segment Definition File (SDF). The Video Broadcast Authoring Tool (VBAT) is the focus of our paper. Taking a video stream and an SDF as input, VBAT provides a means for authors to create, delete, modify and annotate segments of that stream. VBAT also integrates existing technology such as World-Wide Web's HTTP links and the Motion Picture Parser application. Creation of various-format stills for browsing is supported. VBAT provides for post-processing of the SDF to various playout environments; we implement and describe a postprocessor for World-Wide Web browsing and playout. Finally, we discuss VBAT's position in an integrated digital video broadcast environment and areas of future work.

Paper Details

Date Published: 14 March 1995
PDF: 9 pages
Proc. SPIE 2417, Multimedia Computing and Networking 1995, (14 March 1995); doi: 10.1117/12.206065
Show Author Affiliations
Michael Carreira, Quantom Corp. (United States)
John E. Casebolt, Draper Lab. (United States)
Gerard Desrosiers, Naval Undersea Warfare Ctr. (United States)
Thomas D.C. Little, Boston Univ. (United States)


Published in SPIE Proceedings Vol. 2417:
Multimedia Computing and Networking 1995
Arturo A. Rodriguez; Jacek Maitan, Editor(s)

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