Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Robert Boschgmbh

Aljoscha Smolic

Thomas Wiegand

Heiko Schwarz

Karsten Mueller

Sven Bauer

Peter Siepen

Bernd Schmale

Marco Boltz

Patrick Ndjiki-Nya

Matthias Kautzer

Guido Heising

Bela Makai

The invention relates to a method and assembly for video coding comprising a texture analysis, texture synthesis, corresponding computer program and a computer-readable recording medium. Said invention can be used, in particular for reducing a data rate during a video data transmission. An analysis of video scene texture by an encoder is performed in such a way that synthesized texture areas are determined. The video scene coding is carried out with the aid of data for said synthesized texture areas. Information on the texture of said areas, metadata used for describing the determined areas and the synthesized texture are generated. Coded data and metadata are evaluated by a decoder in such a way that the video scenes are reconstructed by synthetically generated textures by means of evaluation of metadata for determined areas.

Method and assembly for video encoding, the video encoding including texture analysis and texture synthesis, and corresponding computer program and corresponding computer-readable storage medium

Introducing a further prediction stage, namely a prediction of the motion vectors or the prediction error of the first prediction stage, does indeed at first increase the encoding or compression effort and, correspondingly, also the decoding or decompression effort, but the prediction proposed here leads to a significant improvement of the compression gain in relation to the effort in most graphics model sequences due to the uniformity of the motion.

Coding scheme for a data stream representing a temporally varying graphics model

In the method of coding according to the invention whether or not a predetermined encoder capacity parameter has been reached is tested prior to the actual coding of an image sequence. A reduction of the coding format can take place when the capacity parameter has been reached. The coding is then performed in this reduced coding format. This method can be combined with any coding process, since it does not need to intervene in the actual coding process that is used.

Method and device for coding and decoding image sequences

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Berlin, Germany

Aljoscha Smolic