ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,696, issued on Oct. 14.
"Psycho-visual-model based video watermark gain adaptation" was invented by Patrick George Downes (San Diego), Rade Petrovic (San Diego) and Jian Zhao (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for embedding video watermarks. Areas of poor visual quality in a video content having embedded watermarks ar determined. The watermark symbols replace pixels in the video content with pixels in which the luma values are modulated such the luma value for a 0 bit renders as black and the luma value for a 1 bit renders a shade of gray. The luma value for the 1 bit level is reduced in those areas determined to have...