US 12,243,276 B2
Three-dimensional data encoding method and three-dimensional data encoding 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. 19, 2022, as Appl. No. 18/083,819.
Application 18/083,819 is a continuation of application No. PCT/JP2021/024429, filed on Jun. 28, 2021.
Claims priority of provisional application 63/045,491, filed on Jun. 29, 2020.
Prior Publication US 2023/0123146 A1, Apr. 20, 2023
Int. Cl. G06T 9/00 (2006.01); G06T 9/40 (2006.01)
CPC G06T 9/001 (2013.01) [G06T 9/40 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A three-dimensional data encoding method comprising:
calculating a prediction residual that is a difference between information of a three-dimensional point included in point cloud data and a predicted value;
quantizing the prediction residual using a quantization parameter;
determining a second bit count of second information, using the quantization parameter, the second information indicating a first bit count of first information on the prediction residual quantized; and
generating a bitstream including the first information, the second information, and third information indicating the second bit count.