XMovie: Architecture and Implementation of a Distributed Movie System

Keller, Ralf ; Effelsberg, Wolfgang ; Lamparter, Bernd

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URL: https://ub-madoc.bib.uni-mannheim.de/833
URN: urn:nbn:de:bsz:180-madoc-8335
Document Type: Working paper
Year of publication: 1994
The title of a journal, publication series: Technical Reports
Volume: 94-012
Place of publication: Mannheim
Publication language: English
Institution: School of Business Informatics and Mathematics > Sonstige - Fakultät für Wirtschaftsinformatik und Wirtschaftsmathematik
MADOC publication series: Veröffentlichungen der Fakultät für Mathematik und Informatik > Institut für Informatik > Technical Reports
Subject: 004 Computer science, internet
Subject headings (SWD): Video , Transportprotokoll , X Window System 11
Abstract: We describe a system for storing, transmitting and presenting digital movies in a computer network. The hardware used in the system is standard hardware, as found in typical workstations today; no special hardware is required. The movies are shown in windows of the X window system. This allows full integration with the classical components of computer applications such as text, color graphics, menus and icons. The XMovie system has several innovative features: First, it contains a new algorithm for the gradual adaptation of the color lookup table during the presentation of the movie to ensure optimal color quality on low-end workstations. Second, it is a multi-standard system supporting the compression techniques MPEG, H.261, Motion JPEG, and a newly developed extension to the well known Color Cell Compression method. Third, we introduce AdFEC, a new adaptable forward error correction method for our movie transmission protocol.

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