ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,828, issued on June 17, was assigned to Motional AD LLC (Boston).

"Scalable and realistic camera blockage dataset generation" was invented by Pan Yu (Singapore), You Hong Eng (Singapore), James Guo Ming Fu (Singapore) and Jiong Yang (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are methods for scalable and realistic camera blockage dataset generation, which can include generating synthetic images depicting a blockage on or near an imaging sensor. The synthetic images may be created by combining one or more chroma key-extracted partial blockage image with one or more background images, the combination of which can provide a scala...