US 12,225,192 B2
Separate constrained directional enhancement filter
Yixin Du, Los Altos, CA (US); Liang Zhao, Sunnyvale, CA (US); Xin Zhao, San Diego, CA (US); and Shan Liu, San Diego, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Sep. 9, 2022, as Appl. No. 17/941,738.
Application 17/941,738 is a continuation of application No. 17/091,759, filed on Nov. 6, 2020, granted, now 11,483,557.
Claims priority of provisional application 63/040,856, filed on Jun. 18, 2020.
Prior Publication US 2023/0016219 A1, Jan. 19, 2023
Int. Cl. H04N 19/117 (2014.01); H04N 19/139 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/44 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/139 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/44 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method of video decoding, executable by one or more processors, the method comprising:
receiving video data comprising a plurality of frames, including a current frame having a chroma component and a luma component;
determining that a semi decoupled partitioning (SDP) mode is enabled for the current frame; and
in accordance with the SDP mode being enabled for the current frame:
applying a first Constrained Directional Enhancement Filter (CDEF) process to the chroma component of the current frame;
applying a second CDEF process to the luma component of the current frame, wherein the first CDEF process is different than the second CDEF process;
deriving a first number of presets for the first CDEF process and a second number of presets for the second CDEF process; and
reconstructing the current frame in accordance with the first CDEF process and the second CDEF process.