US 12,010,318 B2
Systems and methods for reference offset signaling in video coding
Sachin G. Deshpande, Camas, WA (US)
Assigned to SHARP KABUSHIKI KAISHA, Osaka (JP); and FG Innovation Company Limited, Tuen Mun (HK)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP); and FG Innovation Company Limited, Tuen Mun (HK)
Filed on Nov. 21, 2022, as Appl. No. 17/991,037.
Application 17/991,037 is a continuation of application No. 17/289,957, granted, now 11,689,724, previously published as PCT/JP2019/042436, filed on Oct. 29, 2019.
Claims priority of provisional application 62/784,072, filed on Dec. 21, 2018.
Claims priority of provisional application 62/755,240, filed on Nov. 2, 2018.
Prior Publication US 2023/0179771 A1, Jun. 8, 2023
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/70 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A method of deriving prediction sample values for decoding video data, the method comprising:
decoding a reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position;
deriving a luma location based on a product of a value of the reference wraparound offset syntax and a minimum coding block size;
setting an offset variable equal to a value obtained by dividing the product of the value of the reference wraparound offset syntax and the minimum coding block size by a width value, wherein the width value is specified based on a chroma format;
deriving a chroma location by using the offset variable; and
deriving a predicted luma sample value by using the luma location.