US 12,177,435 B2
Image processing device and method
Takeshi Tsukuba, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/781,732
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 18, 2020, PCT No. PCT/JP2020/047338
§ 371(c)(1), (2) Date Jun. 2, 2022,
PCT Pub. No. WO2021/125309, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/950,055, filed on Dec. 18, 2019.
Prior Publication US 2023/0007255 A1, Jan. 5, 2023
Int. Cl. H04N 19/124 (2014.01); H04N 19/184 (2014.01); H04N 19/60 (2014.01); H04N 19/65 (2014.01)
CPC H04N 19/124 (2014.11) [H04N 19/184 (2014.11); H04N 19/60 (2014.11); H04N 19/65 (2014.11)] 20 Claims
OG exemplary drawing
 
1. An image processing device comprising:
a quantization parameter correction unit configured to correct a quantization parameter on a basis of a parameter regarding adaptive color transform and further correct the quantization parameter on a basis of a parameter regarding transform skip; and
a quantization unit configured to quantize coefficient data of an image to be encoded by using a corrected quantization parameter that is the quantization parameter corrected by the quantization parameter correction unit.