公开(公告)号：US20230217006A1

公开(公告)日：2023-07-06

申请号：US17642075

申请日：2020-09-02

Applicant: InterDigital VC Holdings, Inc.

Inventor： Bertrand Chupeau ,  Gerard Briand ,  Thierry Tapie

IPC: H04N13/388 ,  G06T17/00 ,  G06T7/11 ,  H04N13/178 ,  H04N19/597

CPC classification number: H04N13/388 ,  G06T17/00 ,  G06T7/11 ,  H04N13/178 ,  H04N19/597

Abstract: Methods, apparatuses and streams are disclosed for transmitting tiled volumetric video and, at the receiver, for generating an atlas image compatible with a legacy decoder. At the server side, viewport information is obtained and a first list of central tiles and a second list of border tiles are selected. A central tile is a part of an image obtained by projecting the 3D scene onto an image plane according to a central point of view. A border tile is an image comprising dis-occluding patches. Sizes and shapes of border tiles are function of size and shape of central tiles. At the client side, tiles are arranged according to a layout selected in a set of layouts according to the number, sizes and shapes of border tiles.
FIG. 8.

公开(公告)号：US20230024615A1

公开(公告)日：2023-01-26

申请号：US17782504

申请日：2020-11-30

Applicant: InterDigital VC Holdings, Inc.

Inventor： Charles Salmon-Legagneur ,  Bertrand Chupeau ,  Julien Fleureau

IPC: H04N13/161 ,  H04N13/178 ,  H04N13/194

Abstract: A method for encoding a volumetric video content representative of a 3D scene is disclosed. The method comprises obtaining a reference viewing box and an intermediate viewing box defined within the 3D scene. For the reference viewing bounding box, the volumetric video reference subcontent is encoded as a central image and peripheral patches for parallax. For the intermediate viewing bounding box, the volumetric video intermediate sub-content is encoded as intermediate central patches which are differences between the intermediate central image and the reference central image.