ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,530,746, issued on Jan. 20, was assigned to CONTRAST INC. (Albuquerque, N.M.).
"Image processing noise reduction" was invented by Willie C. Kiser (Albuquerque, N.M.), Michael D. Tocci (Albuquerque, N.M.) and Nora Tocci (Albuquerque, N.M.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Noise reduction in images is provided by performing a noise reduction step on blocks of pixels within a video-processing pipeline. The noise reduction step consists of applying a discrete cosine transform (DCT) to the block of pixels, quantizing the resulting DCT coefficients, and performing an inverse of the DCT to the quantized coefficients. The output of that noise reduc...