US 12,075,036 B2
Image processing device and image processing method
Masaru Ikeda, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/634,993
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Sep. 3, 2020, PCT No. PCT/JP2020/033468
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/045162, PCT Pub. Date Mar. 11, 2021.
Claims priority of provisional application 62/897,038, filed on Sep. 6, 2019.
Prior Publication US 2022/0295055 A1, Sep. 15, 2022
Int. Cl. H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/70 (2014.11); H04N 19/82 (2014.11)] 15 Claims
OG exemplary drawing
 
1. An image processing device comprising:
a decoder that decodes a bitstream to generate a decoded image; and
a filter that
applies a deblocking filter to a color difference component of pixels near a block boundary of the decoded image generated by the decoder using a color difference offset parameter set used when applying a deblocking filter to the color difference component of pixels near the block boundary of the decoded image generated by the decoder, wherein the pixels near the block boundary of the decoded image are pixels located within a range in which the deblocking filter is applied to the block boundary, and
applies the deblocking filter to a first color difference component and a second color difference component of the pixels near the block boundary of the decoded image generated by the decoder using a first color difference offset parameter set used when applying a deblocking filter to the first color difference component of the decoded image and a second color difference offset parameter set used when applying a deblocking filter to the second color difference component of the decoded image.