公开(公告)号：WO2020013537A1

公开(公告)日：2020-01-16

申请号：PCT/KR2019/008318

申请日：2019-07-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： DAWAR, Neha ,  NAJAF-ZADEH, Hossein ,  JOSHI, Rajan ,  BUDAGAVI, Madhukar

IPC: G06T9/00 ,  G06T17/20 ,  G06T15/10 ,  G06T15/04

Abstract: A method for decoding point cloud includes decoding the compressed bitstream into a geometry frame representing geometry of a 3D point cloud and a texture frame representing texture of the 3D point cloud, the geometry frame and the texture frame including pixels representing points of the 3D point cloud from different layers of the 3D point cloud; deriving a set of missing geometry values from pixels in the geometry frame and a set of missing texture values from pixels in the texture frame; generating a first set of frames representing geometry from the different layers based on the geometry frame and the set of missing geometry values; generating a second set of frames representing the texture from the different layers based on the texture frame and the set of missing texture values; and generating the 3D point cloud using the first set of frames and the second set of frames.

公开(公告)号：WO2020180161A1

公开(公告)日：2020-09-10

申请号：PCT/KR2020/003201

申请日：2020-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： FARAMARZI, Esmaeil ,  BUDAGAVI, Madhukar ,  JOSHI, Rajan ,  NAJAF-ZADEH, Hossein ,  SINHAROY, Indranil

IPC: G06T9/00 ,  H04N19/184 ,  G06T15/08 ,  G06T17/20

Abstract: An encoding device, a decoding device, and a method for mesh decoding are disclosed. The method for mesh decoding includes receiving a compressed bitstream. The method also includes separating, from the compressed bitstream, a first bitstream and a second bitstream. The method further includes decoding, from the second bitstream, connectivity information of a three dimensional (3D) mesh. The method additionally includes decoding, from the first bitstream, a first frame and a second frame that include patches. The patches included in the first frame represent vertex coordinates of the 3D mesh and the patches included in the second frame represent a vertex attribute of the 3D mesh. The method also includes reconstructing a point cloud based on the first and second frames. Additionally, the method also includes applying the connectivity information to the point cloud to reconstruct the 3D mesh.