US 11,902,577 B2
Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device
Toshiyasu Sugio, Osaka (JP); Noritaka Iguchi, Osaka (JP); Pongsak Lasang, Singapore (SG); Chi Wang, Singapore (SG); and Chung Dean Han, Johor Bahru (MY)
Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Jul. 21, 2021, as Appl. No. 17/381,789.
Application 17/381,789 is a continuation of application No. PCT/JP2020/004561, filed on Feb. 6, 2020.
Claims priority of provisional application 62/801,841, filed on Feb. 6, 2019.
Prior Publication US 2021/0352323 A1, Nov. 11, 2021
Int. Cl. H04N 19/597 (2014.01); H04N 19/182 (2014.01); H04N 19/167 (2014.01); H04N 19/46 (2014.01); H04N 19/85 (2014.01); H04N 13/246 (2018.01); H04N 13/282 (2018.01); G01S 17/89 (2020.01)
CPC H04N 19/597 (2014.11) [H04N 19/167 (2014.11); H04N 19/182 (2014.11); H04N 19/46 (2014.11); H04N 19/85 (2014.11); G01S 17/89 (2013.01); H04N 13/246 (2018.05); H04N 13/282 (2018.05)] 12 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method, comprising:
obtaining orthogonal geometry information indicating each position of a three-dimensional point cloud in orthogonal coordinates;
obtaining a plurality of parameters including first horizontal angle information and first vertical angle information corresponding to the three-dimensional point cloud;
converting, using at least one of the plurality of parameters, the orthogonal geometry information into polar geometry information indicating each position of the three-dimensional point cloud in polar coordinates;
encoding the polar geometry information; and
generating a bitstream including the polar geometry information encoded,
wherein the converted 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.