US 11,870,946 B2
Prediction decoding method and apparatus
Junyan Huo, Guangdong (CN); Yanzhuo Ma, Guangdong (CN); Shuai Wan, Guangdong (CN); Fuzheng Yang, Guangdong (CN); and Qihong Ran, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Apr. 27, 2022, as Appl. No. 17/660,874.
Application 17/660,874 is a continuation of application No. 17/356,982, filed on Jun. 24, 2021, granted, now 11,412,244.
Application 17/356,982 is a continuation of application No. PCT/CN2019/070147, filed on Jan. 2, 2019.
Prior Publication US 2022/0256179 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/44 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/105 (2014.11); H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A prediction decoding method, comprising:
determining first multiple neighbouring reference samples of a coding block, wherein the first multiple neighbouring reference samples comprise reference samples in a reference row or a reference column neighbouring the coding block;
determining, from a starting position of the reference row or the reference column, positions corresponding to K reference samples, wherein K is a positive integer;
determining second multiple neighbouring reference samples according to the determined positions corresponding to the K reference samples, wherein the second multiple neighbouring reference samples comprise neighbouring reference samples among the first multiple neighbouring reference samples, wherein reference sample positions for the second multiple neighbouring reference samples are determined based on equal sampling intervals; and
performing prediction decoding on the coding block according to the second multiple neighbouring reference samples,
wherein the method further comprises:
for the reference row, determining a value of K according to a length of the reference row and a first preset proportion, wherein the first preset proportion corresponds to the reference row; or
for the reference column, determining the value of K according to a length of the reference column and a second preset proportion, wherein the second preset proportion corresponds to the reference column.