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

Claim 5:
6. The three-dimensional data decoding method according to claim 5, wherein
the decoding including the first inverse quantization process includes:
performing the first inverse quantization process to generate first coefficient values from the first quantization coefficients;
performing inverse transformation on the first coefficient values using items of geometry information of the three-dimensional points to generate items of shifted attribute information; and
performing right bit shift on each of the items of shifted attribute information to generate the items of attribute information,

the first scale value is a value generated by multiplying a second scale value for inverse quantizations by a coefficient corresponding to the right bit shift, and
left bit shift and the inverse quantization are performed by multiplying each of the first quantization coefficients by the first scale value, the left bit shift shifting a same number of bits as a number of bits shifted by the right bit shift.