Abstract: A system for digitally overlaying an image with another image is disclosed. A storage is for storing a model of a real world space, wherein the model includes an overlay surface to be overlaid with an overlay image. A camera parameter interface is for receiving camera parameters. A camera image interface is for receiving at least one image. A positioner is for determining a position of the overlay surface within the at least one captured image based on the model and the camera parameters. A detector is for detecting an occluding object based on an image property of the occluding object and a detection image. An overlayer is for overlaying a non-occluded portion of the overlay surface in the selected captured image with the overlay image to obtain an output image.

Abstract: A method of image conversion for signage, displaying an image on a display surface, includes determining (1) a shape model of a three-dimensional object, determining (2) geometric properties of a display surface including a position and orientation of the display surface in a space, determining (3) a position of a viewpoint in the space, determining (4) a position and orientation of the shape model in the space, and computing (6) an inverse perspective projection onto the display surface based on the position of the viewpoint, for example the camera position in space, to generate a display image, wherein the display image, when displayed on the display surface and viewed through the viewpoint, appears to show the three-dimensional object with a position and orientation according to the position and orientation of the shape model in the space.

Abstract: A system for digitally overlaying an image with another image is disclosed. A storage is for storing a model of a real world space, wherein the model includes an overlay surface to be overlaid with an overlay image. A camera parameter interface is for receiving camera parameters. A camera image interface is for receiving at least one image. A positioner is for determining a position of the overlay surface within the at least one captured image based on the model and the camera parameters. A detector is for detecting an occluding object based on an image property of the occluding object and a detection image. An overlayer is for overlaying a non-occluded portion of the overlay surface in the selected captured image with the overlay image to obtain an output image.

Abstract: A method of image conversion for signage, displaying an image on a display surface, includes determining (1) a shape model of a three-dimensional object, determining (2) geometric properties of a display surface including a position and orientation of the display surface in a space, determining (3) a position of a viewpoint in the space, determining (4) a position and orientation of the shape model in the space, and computing (6) an inverse perspective projection onto the display surface based on the position of the viewpoint, for example the camera position in space, to generate a display image, wherein the display image, when displayed on the display surface and viewed through the viewpoint, appears to show the three-dimensional object with a position and orientation according to the position and orientation of the shape model in the space.