US 12,335,524 B2
Frequency-dependent joint component secondary transform
Xin Zhao, San Diego, CA (US); Madhu Peringassery Krishnan, Mountain View, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Jan. 18, 2024, as Appl. No. 18/416,187.
Application 18/416,187 is a continuation of application No. 17/495,202, filed on Oct. 6, 2021, granted, now 11,917,202.
Application 17/495,202 is a continuation of application No. 16/928,760, filed on Jul. 14, 2020, granted, now 11,206,428.
Prior Publication US 2024/0155159 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/61 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/61 (2014.11) [H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing visual media data based on performing a joint component secondary transform (JCST), the method comprising performing a conversion between a visual media file and a bitstream of a visual media data according to a format rule, the format rule indicating:
obtaining residual components among a plurality of transform coefficients;
performing a transformation on the residual components; and
performing the JCST on the transformed residual components.