US 12,413,781 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); Takahiro Nishi, Nara (JP); Pongsak Lasang, Singapore (SG); Zheng Wu, Singapore (SG); Keng Liang Loi, 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 Oct. 12, 2023, as Appl. No. 18/379,418.
Application 18/379,418 is a continuation of application No. PCT/JP2022/017695, filed on Apr. 13, 2022.
Claims priority of provisional application 63/177,619, filed on Apr. 21, 2021.
Prior Publication US 2024/0040150 A1, Feb. 1, 2024
Int. Cl. H04N 19/597 (2014.01); H04N 19/159 (2014.01); H04N 19/91 (2014.01)
CPC H04N 19/597 (2014.11) [H04N 19/159 (2014.11); H04N 19/91 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method comprising:
calculating a predicted value of a position of a three-dimensional point according to one of inter prediction and intra prediction;
calculating a residual between the predicted value and the position;
arithmetic-encoding the residual using a first context when the predicted value is calculated according to the inter prediction; and
arithmetic-encoding the residual using a second context different from the first context when the predicted value is calculated according to the intra prediction, wherein
the residual is expressed by third residual information indicating a bit count of the residual.