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    METHOD, APPARATUS AND STREAM FOR IMMERSIVE VIDEO FORMAT
    7.
    发明公开
    METHOD, APPARATUS AND STREAM FOR IMMERSIVE VIDEO FORMAT 审中-公开

    公开(公告)号：EP3568834A1

    公开(公告)日：2019-11-20

    申请号：EP18700113.6

    申请日：2018-01-08

    申请人： InterDigital VC Holdings, Inc.

    发明人： DORE, Renaud ,  GALPIN, Franck ,  BRIAND, Gerard ,  FLEUREAU, Julien

    IPC分类号： G06T17/00 ,  G06T9/00 ,  H04N19/20

    摘要： Method and device for generating a stream of data representative of an object (5) of a scene. The object (5) of the scene is represented with a 3D point cloud according to a determined range of points of view. The point cloud is for example obtained from images of the scene, each image representing the scene or a part of it according to a different point of view within the determined range of points of view. The 3D point cloud is partitioned into a plurality of 3D elementary parts (71, 72, 73) that each comprise one or more points of the 3D point cloud. A set of two-dimensional 2D parametrizations (701, 702, 703, 704) is determined, each 2D parametrization representing one 3D part of the point cloud with a set of parameters. Each 3D part is represented with one or more 2D pixel representations via some parameters for each 2D pixel representation. A depth map (741, 742, 743, 744) and a color map are determined for and associated with each 3D part using the parameters of the 2D parametrizations associated with each 3D part. The obtained depth maps are represented in a first patch atlas (74) and the obtained color maps are represented in a second patch atlas (75). A data stream is generated by combining and/or coding the parameters of the 2D parametrization, the data representative of the first patch atlas (74), the data representative of the second patch atlas (75) and mapping information that links each 2D parametrization with its associated depth map and color map in respectively the first and second patch atlas.