ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,111, issued on Nov. 18, was assigned to GOOGLE LLC (Mountain View, Calif.).
"Parameterized noise synthesis for graphical artifact removal" was invented by Danny Hong (New York), Richard Xie (Cupertino, Calif.) and Ramachandra Tahasildar (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pre-encoding noise parameterization techniques mitigate or eliminate banding and other graphical artifacts in video frames for decoding and presentation by a client device. For one or more input video frames, a quantization parameter associated with the input video frames is identified. Noise synthesis parameters are determined based on the identified ...