	US 12,137,231 B2
	Image data encoding and decoding
Karl James Sharman, Basingstoke (GB); Stephen Mark Keating, Basingstoke (GB); and Magali Kimlee Miri Philippe, Basingstoke (GB)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by SONY GROUP CORPORATION, Tokyo (JP)
Filed on Jan. 27, 2023, as Appl. No. 18/160,767.
Application 18/160,767 is a continuation of application No. 17/390,283, filed on Jul. 30, 2021.
Application 17/390,283 is a continuation of application No. 16/753,139, granted, now 11,159,803, issued on Oct. 26, 2021, previously published as PCT/GB2018/053077, filed on Oct. 24, 2018.
Claims priority of application No. 1717684 (GB), filed on Oct. 27, 2017; and application No. 1809024 (GB), filed on Jun. 1, 2018.
Prior Publication US 2023/0171413 A1, Jun. 1, 2023
Int. Cl. H04N 19/159 (2014.01); H04N 19/105 (2014.01); H04N 19/11 (2014.01); H04N 19/167 (2014.01); H04N 19/176 (2014.01); H04N 19/44 (2014.01); H04N 19/513 (2014.01); H04N 19/593 (2014.01); H04N 19/60 (2014.01)

CPC H04N 19/159 (2014.11) [H04N 19/105 (2014.11); H04N 19/11 (2014.11); H04N 19/167 (2014.11); H04N 19/176 (2014.11); H04N 19/45 (2014.11); H04N 19/513 (2014.11); H04N 19/593 (2014.11); H04N 19/60 (2014.11)]

21 Claims

1. An image decoding apparatus comprising:

circuitry configured to:

select, from a set of candidate prediction operations each defining at least a prediction direction, a prediction operation for prediction of samples of a current region of a current image, the current region comprising an array of two or more rows and two or more columns of samples; and

derive predicted samples of the current region with respect to one or more samples of a group of reference samples of a same image based upon a prediction direction, defined by the selected prediction operation, between a current sample to be predicted and a reference position amongst the reference samples, wherein

the group of reference samples includes two or more parallel linear arrays of reference samples disposed at different respective separations from the current region, and

for at least some of the candidate prediction operations, the circuitry is further configured apply a weighting to one or more samples from at least two of the two or more parallel linear arrays,

wherein the weightings are based on a block size of the current region.