US 12,452,415 B2
Joint component video frame filtering
Hua Yang, Plainsboro, NJ (US); Yuwen He, San Diego, CA (US); Wei Chen, San Diego, CA (US); and Hongyu Li, Princeton Junction, NJ (US)
Assigned to InterDigital VC Holdings, Inc., Wilmington, DE (US)
Appl. No. 17/762,991
Filed by InterDigital VC Holdings, Inc., Wilmington, DE (US)
PCT Filed Sep. 23, 2020, PCT No. PCT/US2020/052273
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/061814, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/942,952, filed on Dec. 3, 2019.
Claims priority of provisional application 62/926,005, filed on Oct. 25, 2019.
Claims priority of provisional application 62/910,184, filed on Oct. 3, 2019.
Claims priority of provisional application 62/904,335, filed on Sep. 23, 2019.
Prior Publication US 2022/0377324 A1, Nov. 24, 2022
Int. Cl. H04N 19/00 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 18 Claims
OG exemplary drawing
 
1. An apparatus for video decoding, comprising one or more processors, wherein the one or more processors are configured to:
obtain a filter associated with a coding block comprising a first component, a second component and a third component, wherein the filter is associated with the second component and the third component;
apply the filter to a value of the first component associated with a sample in the coding block to obtain an output of the filter;
modify a value for the second component associated with the sample in the coding block using the output of the filter to obtain a modified value for the second component;
obtain a weighting factor associated with the third component;
apply the weighting factor to the output of the filter to generate a weighted filter output; and
modify a value for the third component associated with the sample in the coding block using the weighted filter output to obtain a modified-weighted value for the third component.