ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,409, issued on May 20, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"ALF APS constraints in video coding" was invented by Jianle Chen (San Diego) and Fnu Hendry (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising an adaptive loop filter (ALF) adaptation parameter set (APS) including an ALF luma filter signal flag (alf_luma_filter_signal_flag) and a ALF chroma filter signal flag (alf_chroma_filter_signal_flag), wherein at least one of the alf_luma_filter_signal_flag or the alf_chroma_filter_signal_flag is equal to one. A slice is de...