ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,873, issued on Oct. 27, was assigned to Gravity Brands Ltd. (Harlow, Great Britain).

"Darts scoring method" was invented by Adrian Keller (Kloten, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of determining a score of a dart in a dartboard play surface utilizes a plurality of cameras at a non-zero angle relative to the play surface, the method comprising: calculating a homography matrix for each camera for transforming a captured image from a camera view to a front-view of the dartboard; capturing a first image of the dartboard using each camera at a first time, and capturing a second image of the dartboard using each camera (...