Patent ID: 11902577
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. A three-dimensional data decoding method, comprising:
obtaining, from a bitstream, polar geometry information indicating each position of three-dimensional point cloud in polar coordinates, the polar geometry information including a plurality of parameters including first horizontal angle information and first vertical angle information corresponding to the three-dimensional point cloud; and
restoring the polar geometry information, wherein
the restoring includes:
decoding each position of the three-dimensional point cloud in the polar coordinates;
converting, using at least one of the plurality of parameter, each position of the three-dimensional point cloud in the polar coordinates into each position of the three-dimensional point cloud in orthogonal coordinates, and

wherein the obtained polar geometry information includes second horizontal angle information, second vertical angle information, and distance information from a reference point corresponding to each position of the three-dimensional point cloud.