US 12,395,630 B2
Systems and methods for reducing a reconstruction error in video coding based on a cross-component correlation
Kiran Mukesh Misra, Vancouver, WA (US); Frank Bossen, Vancouver, WA (US); and Christopher Andrew Segall, Vancouver, WA (US)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by Sharp Kabushiki Kaisha, Sakai (JP)
Filed on May 21, 2024, as Appl. No. 18/670,216.
Application 18/670,216 is a continuation of application No. 17/621,860, granted, now 12,034,922, previously published as PCT/JP2020/024645, filed on Jun. 23, 2020.
Claims priority of provisional application 62/886,891, filed on Aug. 14, 2019.
Claims priority of provisional application 62/870,752, filed on Jul. 4, 2019.
Claims priority of provisional application 62/865,933, filed on Jun. 24, 2019.
Prior Publication US 2024/0305780 A1, Sep. 12, 2024
Int. Cl. H04N 19/117 (2014.01); H04N 19/132 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/132 (2014.11); H04N 19/186 (2014.11); H04N 19/70 (2014.11); H04N 19/82 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A method of filtering reconstructed video data, the method comprising:
receiving a slice header;
parsing a first syntax element in the slice header specifying an adaptation parameter set identifier that a Cb color component of a slice refers to, the adaptation parameter set identifier corresponding to an adaptive loop filter data syntax structure signaling a number of cross-component filters for the Cb color component;
receiving a coding tree unit syntax structure;
parsing a second syntax element in the coding tree unit syntax structure, wherein the second syntax element equal to 0 specifies that a cross-component filter is not applied to a coding tree block of the Cb color component, and when the second syntax element is not equal to 0, the second syntax element specifies an index to the cross component filter applied to the coding tree block of the Cb color component; and
determining to invoke a cross component filtering process for the coding tree block of the Cb color component in a case where the second syntax element is not equal to 0, wherein
the index specified by the second syntax element indicates a filter from the number of the cross component filters for the Cb color component signaled in the adaptive loop filter data syntax structure corresponding to the adaptation parameter set identifier specified by the first syntax element.