US 11,800,101 B2
Method for slice, tile and brick signaling
Byeongdoo Choi, Palo Alto, CA (US); Shan Liu, San Jose, CA (US); and Stephan Wenger, Hillsborough, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Dec. 2, 2021, as Appl. No. 17/540,590.
Application 17/540,590 is a continuation of application No. 16/902,574, filed on Jun. 16, 2020, granted, now 11,212,530.
Claims priority of provisional application 62/865,941, filed on Jun. 24, 2019.
Prior Publication US 2022/0094926 A1, Mar. 24, 2022
Int. Cl. H04N 19/11 (2014.01); H04N 19/119 (2014.01); H04N 19/105 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/105 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method performed by at least one processor, the method comprising:
receiving a coded video stream including a picture partitioned into first sub-picture units, the first sub-picture units including:
one first sub-picture unit, and
an additional first sub-picture unit including a first ordered second sub-picture unit, from among second sub-picture units of the additional first sub-picture unit, and a last ordered second sub-picture unit, from among the second sub-picture units of the additional first sub-picture unit; and
decoding the picture, the decoding comprising:
obtaining an index value of a first ordered second sub-picture unit of the one first sub-picture unit and an index value of a last ordered second sub-picture unit of the one first sub-picture unit, wherein the index value of the first ordered second sub-picture unit of the one first sub-picture unit and the index value of the last ordered second sub-picture unit of the one first sub-picture unit are obtained by explicitly signaling the index value of the first ordered second sub-picture unit of the one first sub-picture unit; and
obtaining index values of the first ordered second sub-picture unit and the last ordered second sub-picture unit of the additional first sub-picture unit, without the coded video stream explicitly signaling any of the index values, of the first ordered second sub-picture unit and the last ordered second sub-picture unit of the additional first sub-picture unit, and a difference value between the index values of the first ordered second sub-picture unit and the last ordered second sub-picture unit of the additional first sub-picture unit to the at least one processor,
wherein the additional first sub-picture unit has an order value that is subsequent to an order value of the one first sub-picture unit, and
wherein the obtaining the index value of the last ordered second sub-picture unit of the additional first sub-picture unit comprises obtaining the index value of the last ordered second sub-picture unit of the additional first sub-picture unit based on a value of a syntax element indicating a total number of second sub-picture units within all of the first sub-picture units within the picture.