ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,412,307, issued on Sept. 9, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).
"Camera calibration and distance measurement based on homography" was invented by Amit Rozner (Yehud, Israel), Yohay Falik (Petah Tiqwa, Israel) and Calanit Dotan (Tel Aviv, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "Example implementations include a method, apparatus and computer-readable medium for estimating a real world height in an image, comprising obtaining two images of an object, with known height, wherein each image depicts the object at a different position that is estimated using a homography matrix. The homography matrix ...