US 12,445,607 B2
Video coding apparatus and video decoding apparatus
Keiichiro Takada, Sakai (JP); Yukinobu Yasugi, Sakai (JP); Tomohiro Ikai, Sakai (JP); Tomoko Aono, Sakai (JP); Takeshi Chujoh, Sakai (JP); and Tomonori Hashimoto, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 18/693,565
Filed by Sharp Kabushiki Kaisha, Sakai (JP)
PCT Filed Sep. 7, 2022, PCT No. PCT/JP2022/033488
§ 371(c)(1), (2) Date Mar. 20, 2024,
PCT Pub. No. WO2023/047950, PCT Pub. Date Mar. 30, 2023.
Claims priority of application No. 2021-153957 (JP), filed on Sep. 22, 2021.
Prior Publication US 2024/0397042 A1, Nov. 28, 2024
Int. Cl. H04N 19/33 (2014.01); H04N 19/117 (2014.01); H04N 19/169 (2014.01); H04N 19/176 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/176 (2014.11); H04N 19/1883 (2014.11); H04N 19/80 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A video decoding apparatus including a parameter decoder for decoding a filter parameter from coded data, a bS derivation unit for deriving deblocking filter strength bS, a DF unit for applying a deblocking filter to a decoded image, an NN filter unit for applying filter processing to the decoded image using a neural network, and an image combining unit, wherein
the parameter decoder decodes a parameter indicating a degree of application of an NN filter in a unit of a prescribed block,
the parameter is a parameter set to three or more values,
the NN filter unit outputs a first image from the decoded image,
the DF unit outputs a second image from the decoded image,
the image combining unit derives an output image from the first image, the second image, and the parameter, and
the output image is derived by using a weighted average of the first image and the second image.