Patent ID: 11943457
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 14:
15. An information processing apparatus comprising:
a generation unit configured to generate information indicating a hierarchical structure of positional information about a point cloud representing a three-dimensional object;
a hierarchization unit configured to hierarchize attribute information about the point cloud to associate the attribute information with the hierarchical structure of the positional information, on a basis of the information generated by the generation unit; and
a quantization unit configured to quantize a difference value between the attribute information and a predicted value of each point of each hierarchical level, using a quantization weight for each hierarchical level, the difference value having been generated by the hierarchization unit,
wherein the quantization unit is further configured to quantize the difference value, using the quantization weight for each hierarchical level of a plurality of hierarchical levels, the quantization weight for a respective hierarchical level of the plurality of hierarchical levels being set to a value greater than the quantization weight for hierarchical levels of the plurality of hierarchical levels lower than the respective hierarchical level, and
wherein the generation unit, the hierarchization unit, and the quantization unit are each implemented vii at least one processor.