US Patent Issued to Distance Technologies on Aug. 11 for "Implicit gaze and focus distance calibration" (Finnish Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,293, issued on Aug. 11, was assigned to Distance Technologies Oy (Helsinki).

"Implicit gaze and focus distance calibration" was invented by Thomas Carlsson (Vantaa, Finland) and Mikko Strandborg (Hangonkyla, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Images of a user's face are captured at a plurality of time instants. Tracking parameters are determined, tracking parameters include: a pose of the user's head, positions of eyeballs, and at least one of: relative positions of irises with respect to boundaries of the eyeballs, relative positions of irises with respect to corners, shapes of the user's eyes. Uncalibrated gaze vectors of the u...