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

Ge Video Compression, LLC

Dolby Video Compression, LLC

Fraunhofer-gesellschaft Zur F&#xd6;rderung Der Angewandten Forschung E.v.

Robert Philipp Skupin

Thomas Schierl

Yago Sánchez De La Fuente

Cornelius Hellge

Thomas Wiegand

Detlev Marpe

Valeri George

Karsten Suehring

Karsten Sühring

Karsten Grueneberg

Benjamin Bross

Gerhard Tech

Dimitri Podborski

Anastasia Henkel

Karsten Grüneberg

Yago Sánchez

Heiko Schwarz

Adam Wieckowski

Tobias Hinz

Jackie Ma

Jens Brandenburg

Christian Lehmann

Serhan Gül

Karsten Gruneberg

Yago Sanchez

Martin Winken

Peter Eisert

Anna Hilsmann

Gurdeep Singh Bhullar

Christian Bartnik

Sebastian Bosse

Yago Sänchez De La Fuente

Wieland Morgenstern

Jangwoo Son

The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.

Scalable data stream and network entity

Concepts are described, including encoding, processing and decoding of a data stream having a video encoded thereinto, wherein the video comprises a plurality of pictures, wherein the data stream comprises a plurality of pictures in at least two layers, wherein the pictures of at least one layer are split into a predetermined layer-specific number of subpictures, one or more of the pictures or subpictures of one layer corresponds to one picture or subpictures in one or more other layer, and at least one of the subpictures comprises boundaries for boundary extension for motion compensation, and an indication that at least one of the boundaries of corresponding subpictures or corresponding pictures in different layers are aligned with each other.

Video coding in relation to subpictures

A video decoder () for decoding an encoded video signal comprising encoded picture data to reconstruct a plurality of pictures of a video sequence of a video. The video decoder () comprises an input interface () configured for receiving the encoded video signal comprising the encoded picture data. Moreover, the video decoder () comprises a data decoder () configured for reconstructing the plurality of pictures of the video sequence depending on the encoded picture data. Moreover, further video decoders, video encoders, systems, methods for encoding and decoding, computer programs and encoded video signals according to embodiments are provided.

Encoder and decoder, encoding method and decoding method for reference picture resampling extensions

An apparatus for providing immersive media content to a plurality of receivers is described. The apparatus obtains for a representation of the immersive media content a plurality of tiles, the plurality of tiles covering some or all of the representation, and, for some or all of the plurality receivers, transmits to each receiver one or more of the tiles, the one or more tiles covering at least a viewport associated with the respective receiver.

Immersive viewport dependent multiparty video communication

Interpolation between explicitly signaled CPB (or HRD) parameters at selected bit rates is used to achieve a good compromise between CPB parameter transmission capacity and CPB parametrization effectiveness and may be, particularly, made in an effective manner.

Video coding using a coded picture buffer

A concept for transmitting information from a client to a server is described, the client being for streaming visual content from the server and for integrating the visual content into a 3D scene of a user application, and the client being for obtaining a rendered view of the 3D scene.

Client-server communication for streaming of visual content

A video decoder for decoding a video from a data stream is configured to decode an indication from the data stream which is valid for a sequence of pictures of the video, and indicates that RASL pictures within the sequence of pictures are coded in a manner excluding a predetermined set of one or more coding tools.

Video coding concept allowing for limitation of drift

A video data stream is rendered reducible in a manner so that the reduction leads to a restriction of pictures of the reduced video data stream to merely a predetermined subarea of the pictures of the original video data stream and in a manner so that transcoding, such as re-quantization, may be avoided and a conformance of the reduced video data stream relative to the codec underlying the original video data stream be maintained. This is achieved by providing the video data stream with information including an indication of the predetermined subarea and replacement indices for redirecting the indices included by the payload portion so as to refer to, and/or replacement parameters for adjusting the first set of coding parameter settings so as to result in, a second set of coding parameter settings.

Concept for picture/video data streams allowing efficient reducibility or efficient random access

Video data for deriving a spatially variable section of a scene therefrom as well as corresponding methods and apparatuses for creating video data for deriving a spatially variable section of a scene therefrom and for deriving a spatially variable section of a scene from video data. The video data comprises a set of source tracks comprising coded video data representing spatial portions of a video showing the scene and is formatted in a specific file format and supports the merging of different spatial portions into a joint bitstream through compressed-domain processing.

Merging friendly file format

An apparatus for presenting immersive media content is described. The apparatus obtains from a sender video data representing immersive content for a certain viewing direction and/or for a certain viewpoint, and displays the video data representing the immersive content for the certain viewing direction and/or for the certain viewpoint.

Immersive media content presentation and interactive 360° video communication

Video coding concepts are described which relate to encoding, decoding, extracting and mixing video data streams having encoded therein pictures in a manner subdivided into independently coded subpictures. The concepts relate to an extraction of subpicture specific video data streams having a layer of subdivided pictures and a layer of un-subdivided pictures, a handling of inter-layer prediction tools and a handling of scaling windows for inter-layer prediction for such video data streams, a determination of decoder capability requirements for such data streams, layer-specific constraints for such data streams, and mixing of subpictures encoded with different types of independent coding.

Subpicture-related video coding concepts

A data stream having volumetric video data encoded therein in a scene description language, the data stream representing a scene comprising one or more objects is disclosed, wherein the data stream comprises for at least one object first mesh data, second mesh data and correspondence information, wherein the first mesh data describes the at least one object with a first mesh, the second mesh data describes the at least one object with a second mesh, and wherein the correspondence information indicates a mapping between the first and second mesh. Devices, Methods and a computer program product are also described.

Data stream, devices and methods for volumetric video data

File format concepts for video files are described. It is proposed to that descriptive data of a file indicates whether a parameter set for a track of a file is forwarded when jointly decoding a sub-stream of the track and a further track, and/or that a file includes, for a sub-stream of a video stream signaled in the file, an alternative parameter set to a parameter set for fully decoding the track, the alternative parameter set being for decoding the sub-stream, so as to allow for switching between multiple tracks of a file, and/or that step-wise stream access pictures of a track of a file are marked as stream access point pictures for accessing the track, and/or that a temporal length within which a decoder refresh in case of a joint decoding of sub-streams distributed over multiple tracks is indicated in a file, and/or that a file provides information from which it is derivable whether a pixel aspect ratio varies.

File format schemes allowing efficient ROI, stream access and parameter set handling

The present invention is concerned with decoders, encoders and corresponding methods for handling video data streams () comprising a first sub-bitstream (-) and a second sub-bitstream (-). The herein described concept provides solutions for mixing, within an access unit (), different NAL units () of different NAL unit types. For example, RAP NAL unit types may be mixed with different IRAP NAL unit types or non-IRAP NAL unit types, and non-IRAP NAL unit types may be mixed with different non-IRAP NAL unit types.

Growing community of inventors

Berlin, Germany

Robert Philipp Skupin