Interdigital Ce Patent Holdings

Frederique Humbert

Charline Taibi

Remi Houdaille

Jurgen Stauder

Yvon Legallais

Charles Salmon-Legagneur

Erik Reinhard

During a streaming session of tile based immersive video, upon request to switch from at a current tile segment associated with a current tile to a new tile segment associated with a new tile at a reference time, an encoder () is providing to generate one or more complementary frames of the new tile segment allowing a decoding, by a requesting player, of the new tile segment from the reference time.

Encoder and method for encoding a tile-based immersive video

An encoder is configured for encoding an immersive video spatially tiled with a set of tiles in one or more representations in accordance with corresponding assigned bit-rate upper limits depending on obtained proximity values of the corresponding tiles.

Method and network equipment for encoding an immersive video spatially tiled with a set of tiles

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

For the mapping in a non-linear color space of source colors belonging to a same constant-hue leaf, instead of using a lightness mapping function based only on a cusp lightness condition stating that a source cusp color of this leaf should be mapped into a corresponding target cusp color of this leaf, it is proposed to build such a function also on other source cusp color(s) and other target cusp color(s) having hues different from that of said leaf. Preferably, the hue interval in which these other colors are considered is representative of the curvature of the non-linear color space at the position of colors of this constant-hue leaf.

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Rennes, France

Frederique Humbert