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Proceedings Paper

UMA-based wireless and mobile video delivery architecture
Author(s): Latha Sampath; Abdelsalam A. Helal; John R. Smith
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Paper Abstract

In this paper we propose a conceptual model for describing the network conditions under which the multimedia data is being transmitted, as well as the modality of the device which receives the data. We present an architecture for adaptation of multimedia data to such wireless network conditions and device capabilities, under constraints imposed by user preferences and multimedia content, to ensure effective, meaningful, and acceptable delivery of video data to mobile users. The adaptability is achieved through careful application of a combination of off-line and on-line reductions to the video streams. In doing so, we make use of the concept of descriptor schemes for describing the content of video data, and its lendability to different kinds of reductions [1]. The architecture consists of an MPEG-7 server in the fixed network, and an MPEG-7 player on the mobile host. In addition, an encoder/decoder layer is used to perform physical frame bit reductions on transcoded video frames. The server also maintains index structures and a programmable two-dimensional matrix of reductions. An offline packager module is included with the server, which packages all the MPEG-7 data with the video when the video is first registered with the database.

Paper Details

Date Published: 11 October 2000
PDF: 13 pages
Proc. SPIE 4210, Internet Multimedia Management Systems, (11 October 2000); doi: 10.1117/12.403793
Show Author Affiliations
Latha Sampath, Univ. of Florida (United States)
Abdelsalam A. Helal, Univ. of Florida (United States)
John R. Smith, IBM Thomas J. Watson Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4210:
Internet Multimedia Management Systems
John R. Smith; Chinh Le; Sethuraman Panchanathan; C.-C. Jay Kuo, Editor(s)

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