| 摘要 |
The invention relates to a method for generating a virtual representation (virtual image) of surroundings from a real image of the surroundings taken from a specific camera position. Assuming that the surroundings have a known topography, e.g. a water surface that can be interpreted as a plane, a virtual representation, a virtual image, or a virtual view is generated from the image by means of the camera position relative to the topography, from the perspective of a virtual observation point located at a distance from the camera position. It is thus possible to create, for the viewer, a more advantageous view of objects, e.g. ships, in the surroundings. The disclosed method thus applies to the technical field of image-based rendering. The virtual image is calculated using a simple trigonometric formulation that provides, in a special case, a simple form of homography or projective mapping. The method is used in an observation buoy employed in submarines instead of a hull penetrating periscope or an optronic (photonic) mast. |
