ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,533, issued on April 8, was assigned to GOOGLE LLC (Mountain View, Calif.).
"Video stream adaptive filtering for bitrate reduction" was invented by Mohammad Izadi (San Jose, Calif.) and Balineedu Adsumilli (Foster City, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Adaptive filtering is used video stream for bitrate reduction. A first copy of the input video stream is encoded to a reference bitstream. Each of a number of candidate filters is applied to each frame of a second copy of the input video stream to produce a filtered second copy of the input video stream. The filtered second copy is encoded to a candidate bitstream. A cost value fo...