Abstract: 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.

Abstract: 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 (300) 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.

Abstract: 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 (300) 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.

Abstract: According to embodiments, an enhancement layer segment may be requested in addition to a base layer segment for a same video. The enhancement layer may be requested, in a low priority, so that the base layer may be delivered in priority. If the enhancement layer can be obtained by a deadline, a subsequent base layer segment may be requested at a higher quality (e.g., at a bitrate lower than or equal to the sum of the bitrates of the previously requested base layer and enhancement layer segments). If, for example, at a playback time, the enhancement layer segment is not obtained, it may be determined that the quality cannot be increased and subsequent requests for enhancement layer segments may be cancelled (e.g., not transmitted). According to embodiments, probing may repeat (e.g., any of immediately, regularly, periodically, . . . ) to detect available bandwidth variations.

Abstract: Methods, apparatuses, systems, etc., directed to QoE improvement in cloud gaming are disclosed herein. In an embodiment, a method for improving a QoE of video content (such as e.g., a game) may be implemented in a client device. For example, the client device may receive, from a game server, a plurality of packets carrying video frames of the video content. For example, the client device may apply an initial (e.g., secure reliable transport (SRT)) latency value to the received packets before decoding and displaying. For example, the client device may send a request message to the server, indicating a new latency value based on a frame pace variation to be applied to received subsequent packets before decoding and displaying.

Abstract: 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.

Abstract: Methods, apparatuses, systems, etc., directed to adapting user input in cloud gaming are disclosed herein. In an embodiment, a consumption rate of a game running on a game server may be obtained (e.g., by a client device). For example, the consumption rate may be associated with at least one input device (e.g., of the client device). For example, a consumption rate may be representative of a rate at which the game server may process user inputs of the (e.g., associated) input device. For example, the input rate (e.g., at which the user inputs may be transmitted to the game server) may be adapted by synchronizing the input rate to the consumption rate.

Abstract: The disclosure discloses methods and devices for transmitting and rendering a 3D scene.

Abstract: A client (100) 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.

Abstract: Methods and devices are disclosed to adapt a full-resolution 360° volumetric video content to the processing resources of different client devices. A 3D scene or a sequence of 3D scenes encoded as patch pictures, for example packed in atlas images is obtained; Patch pictures of the atlases are organized according to a sectorization of the three-dimensional space. Then, a request comprising information representative of a pose is received from a client device. Sectors of the sectorization are selected as a function of the pose information and the sectorization. The corresponding part is extracted and/or recomposed, encoded and transmitted to the client device.

Abstract: 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 (300) 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.

Abstract: According to embodiments, an enhancement layer segment may be requested in addition to a base layer segment for a same video. The enhancement layer may be requested, in a low priority, so that the base layer may be delivered in priority. If the enhancement layer can be obtained by a deadline, a subsequent base layer segment may be requested at a higher quality (e.g., at a bitrate lower than or equal to the sum of the bitrates of the previously requested base layer and enhancement layer segments). If, for example, at a playback time, the enhancement layer segment is not obtained, it may be determined that the quality cannot be increased and subsequent requests for enhancement layer segments may be cancelled (e.g., not transmitted). According to embodiments, probing may repeat (e.g., any of immediately, regularly, periodically, ...) to detect available bandwidth variations.

Abstract: A volumetric content is encoded as a set of clusters by an encoder and transmitted to a decoder which retrieves the volumetric content. Clusters common to different viewpoints are obtained and mutualized. Clusters are projected onto 2D images and encoded as independent video streams. Reduction in visual artefacts and reduction of data for storage and streaming are achieved.

Abstract: The disclosure discloses methods and devices for transmitting and rendering a 3D scene.

Abstract: 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 (300) 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.

Abstract: 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.

Abstract: The invention concerns a method for adapting the downloading behavior of a client terminal configured to receive a multimedia content from at least one server, said multimedia content being defined by at least one representation, wherein it comprises the steps of: requesting (S0) a first part of said multimedia content with a given representation; detecting (S1) if a cache between is located along the transmission path the client terminal and a server, based on the request of said first part; in case (S3) a cache is detected, requesting a second part of said multimedia content with a representation depending on at least one performance criterion.

Abstract: 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 (300) 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.

Abstract: Cache (DANE) located along a transmission path between client terminals (CT) and at least one server (SE) and configured to receive requests from client terminals (CT) for segments of a multimedia content available at several representations, which comprises: —an interface of connection (1) for receiving, from a first client terminal, a first request for a preferred representation and at least one alternative representation of a given segment of said multimedia content; —a matching module (5) configured to determine if at least one ongoing representation of said given segment, already requested by the cache from a server for a further client terminal, matches the preferred representation or an alternative representation of the first request.

Abstract: The invention concerns the exchange of parameters between communication devices of a network describing their respective data sessions and the application, at a communication device, of a bandwidth distribution algorithm using the exchange parameters to allocate bandwidth to one or more data sessions in the network.