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Procedural Media Representation

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(1)Procedural Media Representation Masters Thesis in Media Technology by. Anders Henrysson. Mark Ollila Supervisor and examinator. Norrköping 2002-05-08. Department of Science and Technology Linköping University SE-601 74 Norrköping, Sweden. Institutionen för teknik och naturvetenskap Linköpings Universitet 601 74 Norrköping.

(2) Avdelning, Institution Division, Department. Datum Date 2002-05-08. Institutionen för Teknik och Naturvetenskap 581 83 LINKÖPING Språk Language Svenska/Swedish X Engelska/English. Rapporttyp Report category Licentiatavhandling X Examensarbete C-uppsats D-uppsats. ISBN ISRN LITH-ITN-MT-EX--02/22--SE Serietitel och serienummer Title of series, numbering. ISSN. Övrig rapport ____. URL för elektronisk version http://www.ep.liu.se/exjobb/itn/2002/mt/022/ Titel Title. Proceduriell Medierepresentation Procedural Media Representation. Författare Anders Henrysson Author. Sammanfattning Abstract We present a concept for using procedural techniques to represent media. Procedural methods allow us to represent digital media (2D images, 3D environments etc.) with very little information and to render it photo realistically. Since not all kind of content can be created procedurally, traditional media representations (bitmaps, polygons etc.) must be used as well. We have adopted an object-based media representation where an object can be represented either with a procedure or with its traditional representation. Since the objects are created on the client the procedures can be adapted to its properties such as screen resolution and rendering performance. To keep the application as small and flexible as possible, each procedure is implemented as a library which is only loaded when needed. The media representation is written in XML to make it human readable and easy editable. The application is document driven where the content of the XML document determines which libraries to be loaded. The media objects resulting from the procedures is composited into the media representation preferred by the renderer together with the non-procedural objects. The parameters in the XML document are relative to parameters determined by the system properties (resolution, performance etc.) and hence adapt the procedures to the client. By mapping objects to individual libraries, the architecture is easy to make multi threaded and/or distributed.. Nyckelord Keyword procedural methods, media representation, texture synthesis.

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References

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