Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Jackie Ma

Thomas Wiegand

Detlev Marpe

Heiko Schwarz

Valeri George

Tobias Hinz

Adam Wieckowski

Jens Brandenburg

Thomas Schierl

Christian Lehmann

Robert Philipp Skupin

Yago Sánchez De La Fuente

Philipp Helle

Martin Winken

Mischa Siekmann

Christian Bartnik

Jonathan Pfaff

Sebastian Bosse

Bjoern Stallenberger

The present invention concerns an apparatus configured to partition a picture into leaf blocks using recursive multi-tree partitioning, block-based encode the picture into a data stream using the partitioning of the picture into the leaf blocks, wherein the apparatus is configured to, in partitioning the picture into the leaf blocks, for a predetermined block which extends beyond a boundary of the picture, reduce an available set of split modes depending on a position at which the boundary of the picture crosses the predetermined block in order to obtain a reduced set of one or more split modes, wherein the apparatus is configured to signal a selected split mode in the data stream.

Apparatus and method for encoding and decoding a picture using picture boundary handling

Video codec for supporting temporal inter-prediction, configured to perform padding of an area of a referenced portion of a reference picture which extends beyond a border of the reference picture, which referenced portion is referenced by an inter predicted block of a current picture by selecting one of a plurality of intra-prediction modes, and padding the area using the selected intra-prediction mode.

Apparatus for selecting an intra-prediction mode for padding

A video decoder for decoding an encoded video signal including encoded picture data and indication data of a picture of a video to reconstruct the picture of the video is provided. The video decoder includes an interface configured for receiving the encoded video signal, and a data decoder configured for reconstructing the picture of the video by decoding the encoded picture data using the indication data. The picture is partitioned into a plurality of coding areas. One or more coding areas of the plurality of coding areas include two or more coding tree units of the plurality of coding tree units, wherein each coding area of the one or more coding areas which includes two or more coding tree units exhibits a coding order for the two or more coding tree units of the coding area.

Encoder and decoder, encoding method and decoding method for versatile spatial partitioning of coded pictures

In transform coefficient coding, predetermined sets of transforms may be used. Embodiments of the present invention provide an encoder and a decoder for encoding a picture into/from a data stream using block-based prediction and block-based residual coding, the encoder and decoder supporting a set of transforms for the block-based residual coding. The encoder and decoder are configured to determine a transform candidate list of transforms for a current residual block out of the set of transforms based on a height and a width of the current residual block, and to encode/decode a prediction residual within the residual block using one selected transform out of the selectable list of transforms and selectively signal/derive the selected transform in/from the data stream.

Determination of set of candidate transforms for video encoding

Concepts are described which enable improved suitability of a respective codec for parallel processing at encoder and/or decoder.

Concept for enhancing parallel coding capabilities

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Berlin, Germany

Jackie Ma