US 12,294,740 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); Chung Dean Han, Johor Bahru (MY); Keng Liang Loi, Singapore (SG); and Pradit Mittrapiyanuruk, Singapore (SG)
Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on May 2, 2022, as Appl. No. 17/734,613.
Application 17/734,613 is a continuation of application No. PCT/JP2020/042520, filed on Nov. 13, 2020.
Claims priority of provisional application 62/934,822, filed on Nov. 13, 2019.
Prior Publication US 2022/0303577 A1, Sep. 22, 2022
Int. Cl. H04N 19/172 (2014.01); H04N 19/167 (2014.01); H04N 19/597 (2014.01)
CPC H04N 19/597 (2014.11) [H04N 19/167 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method comprising:
generating a first predicted value for an item of position information of a first three-dimensional point included in a frame of point cloud data, using an item of position information of a reference three-dimensional point and angle information, the reference three-dimensional point being different from the first three-dimensional point, and the reference three-dimensional point being included in the frame of the point cloud data;
calculating a first difference value between the item of position information of the first three-dimensional point and the first predicted value; and
generating a bitstream including the first difference value and the angle information that is used for generating predicted values including the first predicted value, the predicted values being for items of position information of three-dimensional points included in the frame of the point cloud data.