ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,603, issued on March 18, was assigned to GOOGLE LLC (Mountain View, Calif.).
"Adaptive wavelet denoising" was invented by Mohammad Izadi (San Jose, Calif.), Pavan Madhusudanarao (San Jose, Calif.) and Balineedu Adsumilli (Sunnyvale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Image data is processed for noise reduction before encoding and subsequent decoding. For an input image in a spatial domain, two-dimensional (2-D) wavelet coefficients at multiple levels are generated. Each level includes multiple subbands, each associated with a respective subband type in a wavelet domain. For respective levels, a flat region of a subband is identif...