Patent ID: 11928844
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 11:
12. A three-dimensional data decoding device, comprising:
a processor; and
memory,
wherein using the memory, the processor:
obtains, from a bitstream, encoded geometry information of each of three-dimensional points and a geometry information flag indicating whether the encoded geometry information was encoded based on a first geometry information encoding method of encoding using octree division or a second geometry information encoding method of encoding without using octree division; and
decodes the encoded geometry information of each of the three-dimensional points based on a decoding method compatible with one of the first geometry information encoding method and the second geometry information encoding method, based on the geometry information flag,
wherein in the decoding of the encoded geometry information:
when the decoding is to be performed based on a decoding method compatible with the first geometry information encoding method, a parameter set used for octree division is obtained from the bitstream and the encoded geometry information of each of the three-dimensional points is decoded using the parameter set; and
when the decoding is to be performed based on a decoding method compatible with the second geometry information encoding method, the parameter set is not obtained from the bitstream.