公开(公告)号：WO2019199104A1

公开(公告)日：2019-10-17

申请号：PCT/KR2019/004422

申请日：2019-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： LIM, Youngkwon ,  BOUAZIZI, Imed ,  YIP, Eric ,  JOSHI, Rajan Laxman

IPC: G06T9/00 ,  H04N19/597 ,  H04N19/70 ,  H04N19/184

Abstract: An encoding device, a decoding device and a method for point cloud encoding is provided. The method includes generating, for a 3D point cloud, frames corresponding to attributes of the 3D point cloud and an occupancy map. The method also includes encoding, the frames to generate one or more bitstreams. The one or more bitstreams include individual tracks and media content. The individual tracks include media tracks and a timed metadata track. The timed metadata track references the media tracks and the media tracks correspond respectively to the attributes. The method also includes generating a container including the one or more bitstreams transmitting the container.

公开(公告)号：WO2021261938A1

公开(公告)日：2021-12-30

申请号：PCT/KR2021/007955

申请日：2021-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JOSHI, Rajan Laxman ,  BUDAGAVI, Madhukar

IPC: H04N19/597 ,  H04N19/119 ,  H04N19/70 ,  H04N19/176 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/55

Abstract: A method for point cloud encoding includes generating, for a three-dimensional (3D) point cloud, video frames and atlas frames that includes pixels representing information about the 3D point cloud, wherein atlas tiles represent partitions in the atlas frames and video tiles represent partitions in the video frames. The method also includes setting a value for a syntax element according to relationships between sizes of the video tiles and sizes of the atlas tiles. The method further includes encoding the video frames and the atlas frames to generate video sub-bitstreams and an atlas sub-bitstream. Additionally, the method includes generating a bitstream based on the atlas sub-bitstream, the video sub-bitstreams, and the syntax element.

公开(公告)号：WO2020013576A1

公开(公告)日：2020-01-16

申请号：PCT/KR2019/008429

申请日：2019-07-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SINHAROY, Indranil ,  BUDAGAVI, Madhukar ,  JOSHI, Rajan Laxman

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

Abstract: A method for encoding a point cloud comprises generating a first 2D frame representing a first attribute of a 3D point cloud and a second 2D frame representing a second attribute of the 3D point cloud, the first and second 2D frames including respective clusters of projected points from the 3D point cloud, detecting missed points of the 3D point cloud not being included in the first 2D frame, generating a first points patch representing the first attribute and a second points patch representing the second attribute based on a subset of the missed points, including the first points patch in the first 2D frame and the second points patch in the second 2D frame, encoding the first 2D frame including the first points patch and the second 2D frame including the second points patch to generate a compressed bitstream, and transmitting the compressed bitstream.

公开(公告)号：WO2019093834A1

公开(公告)日：2019-05-16

申请号：PCT/KR2018/013668

申请日：2018-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G06T17/00 ,  G06T9/00 ,  H04N13/161 ,  H04N13/178

Abstract: A method for operating a decoding device for point cloud decoding includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into two-dimensional (2-D) frames that represent a three-dimensional (3-D) point cloud. Each of the 2-D frames includes a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.