Patent ID: 11900635
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of organically generating a camera-pose map, comprising:
obtaining a target image of an event venue taken immediately prior to a commencement of an event occurring at said event venue using a fixed camera located at said event venue, said target image containing a target location designated as a location for the insertion of a virtual graphic;
designating a camera-pose of said target image to be an origin of a camera-pose space;
obtaining at least one calibrated camera-pose image of said event venue, by:
taking, immediately prior to said commencement of said event, an image of said event venue using said fixed camera, said image having a camera pose that differs from that of said target image;
determining an augmentation homography of said calibrated camera pose image;
determining a camera-pose location of said image using said augmentation homography, said camera-pose location being a position of said image in camera pose location; and,
designating said image as a calibrated camera-pose image;
obtaining a current image of said event venue during said event using said fixed camera;
determining a current-to-calibrated homography of said current image to one of said calibrated camera-pose images having a camera-pose location closest to an estimated camera-pose location of said current image; and,
calculating a camera-pose location of said current image using said current-to-calibrated homography and said augmentation homography of said calibrated camera-pose image;
calculating a distance in camera-pose space between said current image and said one of said camera-pose images; and,
when said distance in camera-pose space is less than a predetermined threshold, designating said current image as a calibrated camera-pose image thereby enlarging said camera-pose map of said fixed camera at said event.