Patent ID: 11889114
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 4:
5. A three-dimensional data decoding method using a first decoding scheme and a second decoding scheme different from the first decoding scheme, the method comprising:
obtaining encoded attribute information and a first quantization parameter from a bitstream, the encoded attribute information being generated by encoding items of attribute information of three-dimensional points included in point cloud data;
transforming the first quantization parameter to a first scale value, based on a first table indicating a correspondence between a plurality of values of the first quantization parameter and a plurality of values of the first scale value, the first table being shared between the first decoding scheme and the second decoding scheme;
performing decoding including a first inverse quantization process to decode the items of attribute information, the first inverse quantization process being a process of multiplying, by the first scale value, each of first quantization coefficients based on the encoded attribute information.