Patent ID: 11924429
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An information processing method, comprising:
executing quantization to obtain a plurality of quantization coefficients for a coding target image divided into blocks;
rearranging, the plurality of quantization coefficients in the blocks, in order from a low frequency side to a high frequency side;
counting, in order of the rearrangement, a number of appearances of quantization coefficients that are not zero among the rearranged plurality of quantization coefficients; and
changing a coefficient value of a quantization coefficient of the rearranged plurality of quantization coefficients to zero in a case where the quantization coefficient is not zero and appears after the number of appearances exceeds an appearance number threshold, wherein
a value of the appearance number threshold is based on a value of a quantization parameter associated with the executed quantization, and
the quantization parameter indicates a quantization width for each frequency.