US Patent Issued to NVIDIA on Nov. 25 for "Spatiotemporal self-guided shadow denoising in ray-tracing applications" (California Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,168, issued on Nov. 25, was assigned to NVIDIA Corp. (Santa Clara, Calif.).

"Spatiotemporal self-guided shadow denoising in ray-tracing applications" was invented by Pawel Kozlowski (Campbell, Calif.) and Alexey Panteleev (Los Gatos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In examples, a filter used to denoise shadows for a pixel(s) may be adapted based at least on variance in temporally accumulated ray-traced samples. A range of filter values for a spatiotemporal filter may be defined based on the variance and used to exclude temporal ray-traced samples that are outside of the range. Data used to compute a first moment of a distributi...