Abstract: A method for automatically generating a three-dimensional reference model as terrain information for a seeker head of an unmanned missile. A three-dimensional terrain model formed from model elements obtained with the aid of satellite and/or aerial reconnaissance is provided. Position data of the imaging device at least at one planned position and a direction vector from the planned position of the imaging device to a predetermined target point in the three-dimensional terrain model are provided. A three-dimensional reference model of the three dimensional terrain model is generated that incorporates only those model elements and sections of model elements from the terrain model, which in the viewing direction of the direction vector from the planned position of the imaging device, are not covered by other model elements and/or are not located outside the field of view of the imaging device.

Abstract: A method for determining the position data of a target object in a reference system from an observation position at a distance. A three-dimensional reference model of the surroundings of the target object is provided, the reference model including known geographical location data. An image of the target object and its surroundings, resulting from the observation position for an observer, is matched with the reference model. The position data of the sighted target object in the reference model is determined as relative position data with respect to known location data of the reference model.

Abstract: A SAR image recorded by a reconnaissance system is transferred as a reference edge image together with the data of the trajectory as a reference. The signal of the infrared seeker head of the missile is converted into a virtual SAR edge image and compared to the SAR reference image to calculate the precise position of the missile.

Abstract: A method for determining the position data of a target object in a reference system from an observation position at a distance. A three-dimensional reference model of the surroundings of the target object is provided, the reference model including known geographical location data. An image of the target object and its surroundings, resulting from the observation position for an observer, is matched with the reference model. The position data of the sighted target object in the reference model is determined as relative position data with respect to known location data of the reference model.

Abstract: A method for automatically generating a three-dimensional reference model as terrain information for a seeker head of an unmanned missile. A three-dimensional terrain model formed from model elements obtained with the aid of satellite and/or aerial reconnaissance is provided. Position data of the imaging device at least at one planned position and a direction vector from the planned position of the imaging device to a predetermined target point in the three-dimensional terrain model are provided. A three-dimensional reference model of the three dimensional terrain model is generated that incorporates only those model elements and sections of model elements from the terrain model, which in the viewing direction of the direction vector from the planned position of the imaging device, are not covered by other model elements and/or are not located outside the field of view of the imaging device.

Abstract: A SAR image recorded by a reconnaissance system is transferred as a reference edge image together with the data of the trajectory as a reference. The signal of the infrared seeker head of the missile is converted into a virtual SAR edge image and compared to the SAR reference image to calculate the precise position of the missile.

Abstract: The process according to the invention is used for influencing the quality of images furnished by an electronic imaging system. For this purpose, image segments are defined which surround individual image points; from the image point signals of the image points situated therein, characteristic brightness and contrast values are calculated and are assigned to the individual image points. Finally, these characteristic values are used to modify the background brightness and the contrast fraction of the image point signals. According to the invention, a subset of image points are selected as supporting points and the pertaining image segments are defined in such a manner that at least areas of the image which are of interest are completely covered. By means of a two-dimensional interpolation, corresponding characteristic values each assigned to the remaining image points can be obtained from the characteristic values determined for the supporting points.

Abstract: Target acquisition device with an imaging sensor, a signal processing circuit and an evaluating circuit comprising a computer for implementing a gray-value analysis of the output signals of the imaging sensor, wherein the signal processing circuit contains threshold value transmitters for the brightness transitions and for the local extreme values, a selection of three values, bright/reference/dark, is effected in the signal evaluation circuit and a centroid of the target is determined from the latter, particularly by means of producing coordinates of the target, and, in order to acquire the target according to the position finding by means of comparison of the measured parameters with the stored parameters in the evaluating circuit, the computer also evaluates the mathematical signs of the received gradient image for determining the target direction, and in that, in addition to a binary image, edges and non-edges, edge points lying on a straight line can also be obtained, particularly from one or more image