摘要:
The invention relates to a method for the identification of objects in a predetermined target area, comprising the following steps: recording a first and a second vertical profile of a target area, the two vertical profiles being recorded at different intervals that can be predetermined, determining a vertical differential profile from the first and the second vertical profile, subdividing the vertical differential profile into equidistant horizontal vertical sections, calculating the positions of the centers of gravity of the surfaces included by the respective contour lines of the horizontal vertical sections, and supplying the determined vertical differential profile and the calculated centers of gravity to a system for classifying the objects.
摘要:
A camera system for detecting and tracking moving objects located at a great distance includes a camera having a camera lens system, and a position stabilizing device. The camera includes a first image sensor and a second image sensor. The camera lens system includes optical elements for focusing incident radiation onto a radiation sensitive surface of the first image sensor and/or the second image sensor with a reflecting telescope arrangement and a target tracking mirror arrangement, and a drive device for a movable element of the target tracking mirror arrangement and with a control system for the drive device. The optical elements includes a first subassembly of optical elements having a first focal length and associated with the first image sensor, and a second subassembly of optical elements having a second focal length that is shorter than the first focal length and associated with the second image sensor.
摘要:
The invention relates to a method for determining object edge curves in a recorded image of a multispectral camera, comprising the following steps: a. converting the recorded image into a digital false color image; b. assigning each pixel in the false color image a hue value H from the HSV color space, wherein the hue value corresponds to a color angle H on a specified color circle; c. classifying the individual pixels as object pixels and background pixels, wherein those pixels are defined as object pixels which have a hue value within a specified value range; d. determining an entropy profile, wherein for each pixel the mixing entropy S is calculated from the object pixel and background pixel according to (formula), where n A indicates the number of the object pixels, n S the number of the background pixels, and k * a proportionality factor, wherein a differentiation and extreme value assessment of the determined entropy profile are carried out.
摘要:
An unmanned high altitude aircraft, in particular a stratosphere aircraft, comprising at least one fuselage (10), wings (13, 14), control surfaces (13", 14", 20', 20", 21', 21") and at least one drive device (15, 16, 17) that has at least one drive machine and at least one propeller (15', 16' 17'), is characterised in that each wing (13, 14) has a plurality of tubes (40, 41, 42, 43, 44) and wing spars (46' 46") that extend in one direction transversally, preferably perpendicularly, to the longitudinal axis of the fuselage (Z) and are surrounded by a skin that forms a wing covering (45) and defines the cross-sectional contour of the wing, the cross-sectional contour forming a laminar profile that generates high lift when there is low flow resistance. Each wing (13, 14) is provided with a winglet (13', 14') that extends transversally to the longitudinal axis of the wing on its free end which faces away from the fuselage (10), and the winglet (13' 14') is provided with a movable control surface (13", 14") that enables an aerodynamic side force to be generated in order to bring the aircraft into an oblique bank position.
摘要:
The invention relates to a camera system and a method for observing objects at great distances, in particular for monitoring target objects (1) at night, in mist, dust or rain from an observation distance of for example 30 to 40 km. The camera system optionally comprises a pivotable target tracking mirror (14), a concave primary mirror (4) comprising a long focal length and a convex secondary mirror (5), said mirrors forming together a mirror telescope (4, 5, 6), optionally a Barlow lens system (6), an IR-sensitive image sensor (22) located on the image plane (2) of the mirror telescope, a controllable high-speed shutter system (23) for the image sensor (22), controllable IR-illumination means (11) for illuminating the object (1) to be observed by IR-illumination pulses (12) of several different colours, and a control device (ST) for the co-ordinated control of the IR-illumination means (11) and the high-speed shutter system (23), in order to record multi-spectral images by means of the image sensor (22), said images being captured according to gated view technology.
摘要:
An airspace surveillance system for the detection of missiles launched within a space being monitored, having at least two surveillance platforms positioned outside or on the edge of the space being monitored in such a manner that the space or a part of the space is situated between the monitoring platforms. Each of the monitoring platforms is equipped with at least one camera system in such a manner that the lines of sight of the camera systems of the two monitoring platforms being positioned opposite to and facing each other.
摘要:
The invention relates to a method for identifying and classifying an object, consisting of the following steps: an object is detected by at least one physical detector which is adjusted to said object; at least one object is determined from the output signal of the at least one detector and an evaluation device; the object is identified and/or classified using predetermined properties provided by the output signal; a plurality of different physical characteristics are derived from the output signal for the object. The method is characterised in that the object is associated with at least one base class which is predetermined by N, based on the derived physical characteristics; the N base classes are arranged in a predetermined sequence in the form of an N-dimensional vector V which is associated with the object, the elements V 1 ,...,V N of the vector V indicating whether the object belongs to the respective base class; and the object is associated, in accordance with the vector V, with a derived class which is obtained from a reference data base.