ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,178, issued on Oct. 28, was assigned to AXIS AB (Lund, Sweden).
"Self-learning distortion correction" was invented by Joakim Ericson (Lund, Sweden), Song Yuan (Lund, Sweden) and Johan Stening (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of distortion correction in an image captured by a non-rectilinear camera includes obtaining multiple images of a scene captured by the camera over time, determining where bottom portions of objects having moved over a horizontal surface in the scene are located in the images, determining a boundary of the horizontal surface in the scene based on the determined locations of the bottom portion...