	US 12,192,491 B2
	Image encoding/decoding method and apparatus, and recording medium storing bitstream
Sung Chang Lim, Daejeon (KR); Jung Won Kang, Daejeon (KR); Ha Hyun Lee, Seoul (KR); Jin Ho Lee, Daejeon (KR); Dae Yeon Kim, Seoul (KR); and Ju Ock Lee, Seoul (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR); and CHIPS&MEDIA, INC, Seoul (KR)
Appl. No. 17/616,481
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR); and CHIPS&MEDIA, INC, Seoul (KR)
PCT Filed Sep. 21, 2020, PCT No. PCT/KR2020/012734 § 371(c)(1), (2) Date Dec. 3, 2021, PCT Pub. No. WO2021/054811, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10-2019-0116393 (KR), filed on Sep. 20, 2019; and application No. 10-2019-0117076 (KR), filed on Sep. 23, 2019.
Prior Publication US 2022/0239933 A1, Jul. 28, 2022
Int. Cl. H04N 19/169 (2014.01); H04N 19/119 (2014.01); H04N 19/172 (2014.01); H04N 19/593 (2014.01); H04N 19/70 (2014.01)

CPC H04N 19/188 (2014.11) [H04N 19/119 (2014.11); H04N 19/172 (2014.11); H04N 19/593 (2014.11); H04N 19/70 (2014.11)]

11 Claims

1. An image decoding method comprising:

obtaining a stream including subpicture information of a plurality of subpictures;

selecting a first subpicture to be extracted from among the plurality of subpictures; and

obtaining a sub stream for the first subpicture from the stream, by removing or using at least one piece of subpicture information included in the stream,

wherein the subpicture information comprises at least one of sequence parameter set (SPS) information or picture parameter set information (PPS),

wherein the sub stream is obtained without changing at least one piece of subpicture information of the first subpicture, and

wherein the unchanged subpicture information comprises information indicating whether to treat a subpicture as a picture.