US 12,483,718 B2
Indication of one slice per subpicture in subpicture-based video coding
Ye-Kui Wang, San Diego, CA (US); and FNU Hendry, San Diego, CA (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 22, 2022, as Appl. No. 17/700,706.
Application 17/700,706 is a continuation of application No. PCT/US2020/050837, filed on Sep. 15, 2020.
Claims priority of provisional application 62/905,122, filed on Sep. 24, 2019.
Claims priority of provisional application 62/904,481, filed on Sep. 23, 2019.
Prior Publication US 2022/0217383 A1, Jul. 7, 2022
Int. Cl. H04N 19/46 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/46 (2014.11) [H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/70 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A method implemented by a decoder, comprising:
receiving a bitstream including a picture parameter set (PPS) including a single slice per subpicture flag;
determining whether the single slice per subpicture flag has a first value or a second value, wherein the first value specifies that each subpicture referring to the PPS includes one and only one rectangular slice and, when there is only one subpicture per picture, that there is only one slice per picture, and wherein the second value specifies that each subpicture referring to the PPS may include only one rectangular slice and may include more than one rectangular slices; and
decoding the one and only one rectangular slice when the single slice per subpicture flag has the first value and the one or more rectangular slices when the single slice per subpicture flag has the second value to obtain a decoded picture.