US 12,262,054 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 Jun. 10, 2022, as Appl. No. 17/837,460.
Application 17/837,460 is a continuation of application No. 17/339,398, filed on Jun. 4, 2021, granted, now 11,395,005.
Application 17/339,398 is a continuation of application No. PCT/JP2019/050081, filed on Dec. 20, 2019.
Claims priority of provisional application 62/783,693, filed on Dec. 21, 2018.
Prior Publication US 2022/0312036 A1, Sep. 29, 2022
Int. Cl. H04N 19/597 (2014.01); G06T 9/00 (2006.01); H04N 19/137 (2014.01)
CPC H04N 19/597 (2014.11) [G06T 9/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method, comprising:
calculating difference values each of which is a difference between (i) a value of attribute information of a three-dimensional point and (ii) a predicted value corresponding to the attribute information of the three-dimensional point;
generating information indicating a number of consecutive zero difference values in a code sequence constituted by the difference values, each of the zero difference values indicating each of the difference values is zero; and
generating a bitstream including the information,
wherein the attribute information includes components,
each of the difference values includes difference components corresponding to the components, and
the information indicates the total number of the zero difference values each including the difference components all of which are 0.