ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,384, issued on July 8, was assigned to De Beers UK Ltd (London).
"Re-identification of rough gemstones" was invented by Qi He Hong (Surrey, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of re-identifying a rough gemstone comprises providing a 3D model of a first rough gemstone; generating a series of virtual 2D silhouette images of the 3D model; processing each 2D image of the series of virtual 2D silhouette images to obtain a dataset associated with the first rough gemstone; and comparing the dataset of the first rough gemstone with an existing dataset of a rough gemstone. Where the dataset of the first rough gemstone and the...