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: 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: A method and an apparatus for decoding a volumetric video are disclosed. Such a method comprises receiving a data stream representative of a file comprising information for selecting, according to a rendering viewpoint, at least one atlas comprising color and depth data patches associated with a viewpoint in said volumetric video, said color and depth data patches being generated with respect to depth and color reference data acquired from a reference viewpoint in said volumetric video.

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

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: 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: A method and an apparatus for decoding a volumetric video are disclosed. Such a method comprises receiving a data stream representative of a file comprising information for selecting, according to a rendering viewpoint, at least one atlas comprising color and depth data patches associated with a viewpoint in said volumetric video, said color and depth data patches being generated with respect to depth and color reference data acquired from a reference viewpoint in said volumetric video.

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

Abstract: A transmission method and a transmitter and receiver Structure is disclosed which provides for transmission of modulated waves using long pulses with a plurality of frequencies. The method involves two consecutive frequencies being separated by 1/T, where T is the period of the useful transmission intervals. The method and the apparatus are particularly suited to broadcasting and reception of television and radio signals as well as telephone communications between exchanges and between radio telephones and communication stations including terrestrial stations and satellites and local computer networks. Most particularly the method is applicable to high fidelity radio transmissions as well as to high definition television (HDTV).

Abstract: The luminance and chrominance signals of a PAL or SECAM composite video signal are separated by means of a method comprising the following steps:sampling and digitizing the composite video signal;determination of a luminance signal and a chrominance signal by means of a first processing channel, from the digital sample of the current point of the image, from a previous sample corresponding to the current point located on the line in the previous field which is spatially positioned in the image immediately beneath the current line, from the luminance signal values already determined in a spatiotemporal neighborhood of the current point and in accordance with an analysis of the local spatiotemporal context of the current point;determination of a luminance signal and a chrominance signal by means of a second processing channel by applying the digital composite signal to the input respectively of a luminance filter and a chrominance filter;selection of the luminance and chrominance signals which are present at th