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Codierschema fuer einen ein zeitlich veraenderliches Graphikmodell darstellenden Datenstrom

Data flow coding device for use in e.g. game application, has cluster-imaging device, coding device and scaling-/quantization device utilized for processing predicted error vector difference to receive part of coded data flow.
 
: Kautzner, M.; Mueller, K.; Smolic, A.; Wiegand, T.

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Frontpage ()

DE 102004049156 A: 20041008
DE 2004-102004049156 A: 20041008
DE 102004049156 B4: 20060713
Deutsch
Patent, Elektronische Publikation
Fraunhofer HHI ()

Abstract
Das Einfuehren einer weiteren Praediktionsstufe, naemlich einer Praediktion der Bewegungsvektoren bzw. der Praediktionsfehler der ersten Praediktionsstufe, erhoeht zwar zunaechst den Codier- bzw. Kompressions- und dementsprechend auch den Decodier- bzw. Dekompressionsaufwand, aber bei den meisten Graphikmodellsequenzen fuehrt aufgrund der Gleichfoermigkeit der Bewegung diese hier vorgeschlagene Praediktion zu einer im Verhaeltnis zum Aufwand erheblichen Verbesserung des Kompressionsgewinns.

 

DE1004049156 A UPAB: 20060523 NOVELTY - The device has an inter-coding section (24) for predicating prediction error vectors for a data section based on already received prediction vectors. A differentiator (30) compares the already received vectors and the predicted vectors to receive a predicted error vector difference. The cluster-imaging device, coding device and scaling-/quantization device are used to process the difference to receive a part of the coded data flow DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (A) a method for coding of data flow (B) a method for decoding of data flow (C) a computer program with a program code for implementing the method for coding of data flow. USE - For coding data flow representing a temporally variable graphics model e.g. three-dimensional (3D) computer graphic model, that is utilized in e.g. game, animation and virtual word applications, also in trick film production and innovated system, which consists of free view point-video (FVV) and 3D-video objects. ADVANTAGE - Increases the compression gain and saves the bit rate. Provides same or better quality with reduced bit rate.

: http://publica.fraunhofer.de/dokumente/N-46054.html