US 12,256,105 B2
Signaling of picture header in video coding
Fnu Hendry, San Diego, CA (US); Ye-Kui Wang, San Diego, CA (US); and Jianle Chen, San Diego, CA (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 23, 2022, as Appl. No. 17/702,448.
Application 17/702,448 is a continuation of application No. PCT/US2020/045045, filed on Aug. 5, 2020.
Claims priority of provisional application 62/905,150, filed on Sep. 24, 2019.
Prior Publication US 2022/0217416 A1, Jul. 7, 2022
Int. Cl. H04N 19/70 (2014.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/44 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/188 (2014.11); H04N 19/44 (2014.11); H04N 19/46 (2014.11)] 29 Claims
OG exemplary drawing
 
1. A method of decoding implemented by a video decoder, comprising:
receiving a video bitstream including a picture unit (PU) having a picture header (PH) with a PH syntax structure, wherein the PU is a set of network abstraction layer (NAL) units associated with each other according to a specified classification rule, are consecutive in decoding order, and contain exactly one coded picture, wherein the PU consists of zero or one PH NAL unit, and wherein the PH syntax structure includes the following syntax elements common for all slices of the coded picture:
a non-reference picture flag,
a picture parameter set (PPS) identifier (ID),
a picture order count (POC) least significant bit (LSB), wherein the POC LSB specifies a POC modulo for a maximum POC LSB for the coded picture, and wherein the maximum POC LSB is determined by:
MaxPicOrderCntLsb=2(sps_log 2_max_pic_order_cnt_lsb_minus4+4),
where the value of sps_log 2_max_pic_order_cnt_lsb_minus4 is in a range of 0 to 12, inclusive,
a recovery point POC, and
a picture output flag; and
decoding the coded picture from the PU to obtain a decoded picture.