ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,746, issued on April 14, was assigned to AXIS AB (Lund, Sweden).
"System and method for background modelling for a video stream" was invented by Ludvig Hassbring (Lund, Sweden) and Song Yuan (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method of background modelling for a video stream acquired by a camera having movement capabilities. The method comprises: acquiring a video stream; repeatedly updating a background model for the video stream by analyzing changes in the sequence of image frames and categorizing image areas in the image frames which do not change over time as background; detecting ca...