Siemens Aktiengesellschaft

Infineon Technologies Ag

Unify Gmbh Co. Kg

Siemens Aktiengesellshcsft

Siemens Schweiz Ag

Siemens Enterprise Communications Gmbh & Co. Kg

Gero Bäse

Norbert Oertel

Jürgen Pandel

Robert Kutka

Andreas Hutter

Peter Amon

Bernhard Agthe

Benoit Timmermann

Ralf Buschmann

Thomas Stockhammer

Juergen Pandel

Frank Burkert

Ralf Mahnkopf

Norbert Örtel

Mario Döller

Florian Markus Stegmaier

Klaus Illgner-Fehns

Stephan Ehling

Dimitrios Kontopodis

Roy Ghandour

According to the invention, there are provided sets of contexts specifically adapted to encode special coefficients of a prediction error matrix, on the basis of previously encoded values of level k. Furthermore, the number of values of levels other than 0 is explicitly encoded and numbers of appropriate contexts are selected on the basis of the number of spectral coefficients other than 0.

Method for producing video coding and programme-product

Method for producing video coding and computer program product

Methods and devices transform image data, which are transformed by a compression filter before being compressed and stored in a reference image memory. In an extension, an inverse transformation to that of the compression filter is performed by a decompression filter when image data from the reference memory are read out and decompressed. The methods and devices can be used for image compression methods and image decompression methods that use reference image memories.

Compression and decompression of reference images in a video encoder

A reconstructed image is provided within the framework of predictive coding. The reconstructed image is compressed according to a coding mode of an image coding device and stored in a reference image memory.

Compression and decompression of reference images in video coding device

Information values are created by nodes and directed edges describing dependencies between two nodes or information values, respectively, in the form of a directed graph for a database query. By using a path distance describing a number of directed edges between a selected node and a target tuple, formed of two nodes connected to a directed edge and a associated directed edge, a reduction of a complexity of a database query and thus an acceleration of the database query can be achieved. The search method can be used, for example, for monitoring systems or in medical databases. Furthermore, the search method can be used for databases which are dynamically extended, for example by new events in the monitoring system.

Method and device for generating an RDF database for an RDF database query and a search method and a search device for the RDF database query

Files which are available for dissemination in a controlled peer-to-peer network are provided with a watermark comprising a large number of watermark elements. Upon download, the composition of the parts of the file which are obtained from a plurality of source stations provides a new watermark which can clearly be associated with the target station. By storing information about forwarded watermark elements of a network server, it is possible to reconstruct for each file the network station from which this file originates.

Method and peer network for ascertaining the peer network originating station for a file

A method for processing data packets of a data stream, in which the received data packets are processed in real-time by a first unit and only data packets that are received error-free are processed by a second unit, include a data sink initially receiving only the data packets processed by a first unit. Once a second unit and the first unit are processing identical data packets nearly simultaneously, data packets processed by the second unit can be routed to the data sink. Embodiments of the invention can be used advantageously in video coding, for example with a video-on-demand service or image analysis within the framework of a surveillance system.

Devices and method for processing data packets of a data stream and use of said devices

A method determines a predicted image area for an image area, in which a temporal predictor for the image area is determined based on a reconstructed image that precedes said image, a local predictor for the image area is determined within a reconstructed image area of the image, a margin of error between the image area and the image area predicted image area is determined by the local predictor using the reconstructed image area and by the temporal predictor using one of the preceding images. A predicted image area can be reconstructed. Also disclosed are an establishing device for carrying out the method for determining a predicted image area as well as a reconstructing device for carrying out the reconstruction method.

Methods and devices for the determination and reconstruction of a predicted image area

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Munich, Germany

Gero Bäse