US Patent Issued to Essilor International on Sept. 2 for "Method for measuring a distance separating a camera from a reference object" (French Inventor)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,406,383, issued on Sept. 2, was assigned to Essilor International (Charenton-le-Pont, France).

"Method for measuring a distance separating a camera from a reference object" was invented by Philippe Pinault (Nogent sur Marne, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for measuring a distance separating a camera from a reference object including a predetermined number of corners arranged in a pattern and at least two reference points separated by a reference length. The method includes acquiring an image including the reference object with the camera, detecting corners in the image, attributing a class to each corner, based on an orie...