US 11,750,797 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)
Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,350.
Application 17/527,350 is a continuation of application No. 17/117,808, filed on Dec. 10, 2020, granted, now 11,212,519.
Application 17/117,808 is a continuation of application No. PCT/JP2019/023776, filed on Jun. 14, 2019.
Claims priority of provisional application 62/685,596, filed on Jun. 15, 2018.
Prior Publication US 2022/0078404 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/103 (2014.01); H04N 19/184 (2014.01); H04N 19/44 (2014.01); H04N 19/597 (2014.01)
CPC H04N 19/103 (2014.11) [H04N 19/184 (2014.11); H04N 19/44 (2014.11); H04N 19/597 (2014.11)] 4 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method of encoding three-dimensional points, the three-dimensional data encoding method comprising:
(i) in a case in which a total number of second three-dimensional points available to calculate a predicted value of attribute information of a first three-dimensional point in one prediction mode selected from among two or more prediction modes is greater than a predetermined number corresponding to the one prediction mode selected, (a) calculating the predicted value according to the one prediction mode selected and (b) calculating a prediction residual that is a difference between the attribute information of the first three-dimensional point and the predicted value calculated;
(ii) in a case in which the total number is equal to or less than the predetermined number, not performing the calculation of the predicted value; and
generating a bitstream that includes the prediction residual.