Thomson Licensing

Interdigital Ce Patent Holdings

Interdigital Ce Patent Holdings, Sas

Interdigital Vc Holdings, Inc.

Thomson Licensing S.a.

Interdigital Madison Patent Holdings, Sas

Thomson Licensing Dtv

Yvon Legallais

Philippe Bordes

Anthony Laurent

Charles Salmon-Legagneur

Guillaume Bichot

Patrick Fontaine

Philippe Gilberton

Christopher Howson

Gilles Straub

Stephane Gouache

Eric Gautier

Remi Houdaille

Charline Taibi

Jean Le Roux

Franck Aumont

Serge Travert

Damien Bonnet

Charline Taibi Guguen

Renaud Dore

Ludovic Jeanne

Sébastien Perrot

Stephane Onno

Quang Khanh Ngoc Duong

Christophe Vincent

Philippe Schmouker

Helmut Burklin

Stéphane Onno

Francois Gerard

Frederique Humbert

Sstéphane Gouache

Philippes Bordes

Methods, devices and stream are disclosed to encode and decode a volumetric content. At the encoding, the space of the volumetric content is divided in distinct sectors according to at least two different sectorizations. One atlas is generated for each sectorization or a single atlas is generated encoding all the sectorizations. At the decoding, a sectorization is selected according to the current direction and field of view, according to user's gaze navigation and according to prediction of the upcoming pose of the virtual camera controlled by the user. Sectors are selected according the selected sectorization and the current direction and field of view and only patches encoded in regions of the atlas associated with these sectors are accessed to generate the viewport image representative of the content seen from the current point of view.

Method and apparatus for encoding and decoding volumetric video

The disclosure discloses methods and devices for transmitting and rendering a 3D scene. The method for rendering comprises: receiving a manifest; requesting, from a server, at least one available first data stream; requesting, from the server, a subset of available second data streams selected based at least on an angular sector associated with the at least one available second data stream; and rendering the 3D scene using the central patch content from the requested first data streams and parallax patch content from the requested selected subset of available second data streams.

Methods for transmitting and rendering a 3D scene, method for generating patches, and corresponding devices and computer programs

During the delivery of a sequence of packets from a server to a client device, when an expiration time associated with an initial payload of a data packet belonging to a sliding window for delivery is reached without reception of a corresponding acknowledgment from the device, the server () resends the data packet with a new payload corresponding to the initial payload of a next data packet to be transmitted through the sliding window.

Network equipment and method for delivering data packets

Methods, devices and stream are disclosed to encode and decode a scene (such as a point cloud) in the context of a patch-based transmission of a volumetric video content. The present principles relate a method of dividing an atlas image in regions, a region being associated with a sector of the space of the scene and packing patches obtained by projecting points comprised in the associated sector only. The atlas and related metadata are encoded in a data stream; At the rendering, a set of sectors is selected based on the current field of the user. Only pixels of regions associated with the selected sectors are accessed to generate the viewport image representative of the scene viewed from the current point of view.

Immersive 3D video content includes a plurality of preferably overlapping cells, each cell representative of a volume in the content, wherein a cell providing both content corresponding to a virtual central camera in the cell and parallax information from virtual peripheral cameras around the centre position can be next to a cell providing only parallax information to be used with the content corresponding to the virtual central camera. A device for rendering immersive video, renders a viewpoint corresponding to a user's current position, tracks and predicts the user position, and if the user position moves to a cell with central camera content, retrieves the content and parallax information, and if the user position moves to a cell with only parallax information, retrieves the parallax information and, if necessary, also the cell with the content. This arrangement can reduce bandwidth and storage for the immersive 3D video content.

Devices and methods for generating and rendering immersive video

A terminal adapted to receive an immersive video spatially tiled with a set of tiles is configured to request tiles depending on their intersection with a volume of vision associated with a user.

Method configured to be implemented at a terminal adapted to receive an immersive video spatially tiled with a set of tiles, and corresponding terminal

The disclosure discloses methods and devices for transmitting and rendering a 3D scene. The method for transmitting comprises: segmenting a space into m angular sectors, the m angular sectors each corresponding to an angular distance from a viewport, and the space into n depth ranges; obtaining () at least one first patch, generated from a first view of the 3D scene, said at least one first patch comprising a texture component and a depth component; obtaining () at least one atlas, generated from at least one second view of the 3D scene, said at least one atlas being built by packing together at least one second patch generated for at least one point of one of said second view that is not visible in another view of the 3D scene and that belongs to a same angular sector among the m angular sectors, and a same depth range among the n depth ranges, at least one of morn being greater than or equal to 2, said at least one second patch comprising a texture component and a depth component, wherein each of the at least one first patch and the at least one second patch is based on at least one of a sector and a depth; generating () a first subset of streams comprising m′ pairs of streams and a second subset of streams comprising m′×n′ pairs of streams; and transmitting () the first and second subsets of streams to the terminal.

A client () is able to manage a multimedia content in such a way that the buffering can be reduced as much as desired down to zero by selecting a representation for a next segment to be requested for which the first frame can be received at least in the frame duration.

Client and a method for managing, at the client, a streaming session of a multimedia content

A network equipment includes at least one access point interface and is configured to operate a plurality of network functions. The network equipment is configured to be in communication with at least one terminal belonging to a network. The network equipment further includes at least one classifier configured to modify a data frame, the data frame coming from the at least one terminal and being received by the access point interface. The data frame may be modified by replacing an address of the data frame with processing information.

Method for managing service chaining at a network equipment, corresponding network equipment

A method for selecting a tile amongst a set of tiles associated with a multimedia content divided into a plurality of tile segments requested by a terminal is described. The multimedia content that is divided into a plurality of tile segments, includes obtaining a next position of a viewport of the terminal at the expiration of a current tile segment based on an estimation of a trajectory of the viewport; identifying one or several tiles amongst the set of tiles comprising at least the viewport at the next position; determining at least one processing parameter depending on at least the center of the identified tile and the next position of the viewport; and selecting an identified tile for which the determined processing parameter meets a selection criterion.

Method and terminal for tile selection amongst a set of tiles

A device and method for monitoring a first device proximity to a second device is disclosed. The first device is for example a smartphone and the second device is for example a wearable device. Proximity between both devices is monitored in conjunction with an electronic calendar so as to trigger an alert in case proximity between both devices is going to be lost while an event of the calendar is imminent.

Device and method for monitoring proximity between two devices

It is provided a method for pairing two devices, one of which is a first device the other is a second device, wherein the method is implemented at the first device, including: generating a pattern to be displayed on either of or both of the first and second devices; sending whole or a part of the tracing pattern to the second device for displaying the tracing pattern on the second device if any; displaying the corresponding pattern on the first device; receiving information indicating the result of tracing the pattern on the second device; and accepting pairing the two devices.

Method and device for pairing devices

A method for controlling a rendering time of a second video content stream on a second device to be synchronized with a rendering time of a first video content stream on a first device, said second video content stream being organized in chunks, includes receiving by a control device a request of a chunk of the second video content stream from the second device, receiving by the control device, the packets of the requested chunk, and delivering by the control device the requested chunk to the second device at a delivery time at which said requested chunk should be delivered to the second device so that the rendering time of the second video content stream on the second device is synchronized with the rendering time of the first video content stream on the first device.

Synchronization of content rendering

The invention discloses a method for reception of an audio-visual program transmitted via portions over a network, the method using a real-time transport protocol and a real-time control protocol between a server and a receiver, the audio-visual program being available on the server in a plurality of versions corresponding to the program coded in different resolutions and enabling its transmission at different bitrates according to requests of the receiver. The method comprising a regular measurement of the bandwidth of the network by the receiver in order to adjust the transmission bitrate according to the state of the network.

Method for dynamic adaptation of the reception bitrate and associated receiver

This invention relates to a system, server and client for multiplexed streaming of multimedia content comprising at least one server being capable of transmitting multimedia content in a streaming environment through one or more data paths to a client, wherein the multimedia content is de-multiplexed by the server into a plurality of sub-streams with each sub-stream comprising a unique mark such that the client is capable of multiplexing said sub-streaming into a continuous stream. Furthermore, the invention relates to a method for multiplexed streaming of multimedia content.

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Rennes, France

Yvon Legallais