US 11,936,850 B2
Methods for intra prediction, and encoder
Shuai Wan, Dongguan (CN); Fuzheng Yang, Dongguan (CN); Zhecheng Wang, Dongguan (CN); and Lei Wei, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Jul. 5, 2022, as Appl. No. 17/857,789.
Application 17/857,789 is a continuation of application No. PCT/CN2020/070557, filed on Jan. 6, 2020.
Prior Publication US 2022/0345695 A1, Oct. 27, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/14 (2014.01); H04N 19/167 (2014.01); H04N 19/184 (2014.01); H04N 19/196 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/14 (2014.11); H04N 19/167 (2014.11); H04N 19/184 (2014.11); H04N 19/196 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for intra prediction, implemented by an encoder, the method comprising:
enabling intra prediction, and determining occupancy information of a first number of neighboring nodes of a coded node;
determining occupancy information of a second number of neighboring nodes of the coded node based on a position association between at least one neighboring node of the coded node and a child node of the coded node, wherein the first number is greater than the second number;
determining an occupancy number corresponding to the second number of neighboring nodes based on the occupancy information of the second number of neighboring nodes;
obtaining a third number associated with the second number; and
performing intra prediction on occupancy information of the child node of the coded node based on the occupancy number and the third number to derive an occupancy prediction result of the child node of the coded node.