US 11,729,375 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); and Noritaka Iguchi, 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 Dec. 17, 2021, as Appl. No. 17/554,346.
Application 17/554,346 is a continuation of application No. 17/123,722, filed on Dec. 16, 2020, granted, now 11,240,491.
Application 17/123,722 is a continuation of application No. PCT/JP2019/024298, filed on Jun. 19, 2019.
Claims priority of provisional application 62/716,628, filed on Aug. 9, 2018.
Claims priority of provisional application 62/699,388, filed on Jul. 17, 2018.
Claims priority of provisional application 62/699,243, filed on Jul. 17, 2018.
Claims priority of provisional application 62/686,872, filed on Jun. 19, 2018.
Prior Publication US 2022/0109826 A1, Apr. 7, 2022
Int. Cl. H04N 19/103 (2014.01); H04N 19/136 (2014.01); H04N 19/184 (2014.01)
CPC H04N 19/103 (2014.11) [H04N 19/136 (2014.11); H04N 19/184 (2014.11)] 8 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method of encoding three-dimensional points, the three-dimensional data encoding method comprising:
calculating a predicted value, using attribute information of one or more second three-dimensional points, according to a first method when a third three-dimensional point included in the one or more second three-dimensional points is spatially coincident with a first three-dimensional point, the predicted value being used for calculating attribute information of the first three-dimensional point;
calculating the predicted value, using the attribute information of the one or more second three-dimensional points, according to a second method that is different from the first method when the third three-dimensional point is not spatially coincident with the first three-dimensional point;
calculating a prediction residual which is a difference between the attribute information of the first three-dimensional point and the predicted value; and
generating a bitstream including the prediction residual.