Abstract:
The invention relates to a method for identifying a difference between a first 3D model of an environment and a second 3D model of the environment. The first and second 3D model each comprise a plurality of points or parts, wherein each point or part of the first and second model comprises geometrical information and texture information. Corresponding points or parts of the first and second 3D model are matched based on the geometrical information and/or the texture information. The matched points or parts of the first and second model are compared to determine at least one difference value based on the geometrical information and the texture information of the first and second model. A difference between the first and second model is identified if the at least one difference value exceeds a predetermined value. The invention also relates to an arrangement, a computer program, and a computer program product.
Abstract:
The present invention relates to a system and method for route planning. The system is arranged to be mounted on a moving object. The system comprises a route planning module arranged to plan a route of the object upon request, wherein occasions of being visible from any point in the map within a shooting range during a predetermined time period is minimized. The system is characterized in that the route planning module is arranged to determine areas in the 3D map in which the object will be exposed to a potential threat during a predetermined time period based on line of sight calculations, and determining a re-planned route avoiding said potential threat areas.
Abstract:
The present invention relates to a system and method for route planning. The system is arranged to be mounted on a moving object. The system comprises a route planning module arranged to plan a route of the object upon request, wherein occasions of being visible from any point in the map within a shooting range during a predetermined time period is minimized. The system is characterized in that the route planning module is arranged to determine areas in the 3D map in which the object will be exposed to a potential threat during a predetermined time period based on line of sight calculations, and determining a re-planned route avoiding said potential threat areas.
Abstract:
Various embodiments provide a method for analyzing images generated from at least one imaging system on at least one satellite. The method comprises providing at least three images of an area of interest from the at least one imaging system, the provided images being provided from at least three different angles, establishing point correspondence between the provided images, generating at least two sets of three-dimensional information based on the provided images, wherein the at least two sets of three-dimensional information are generated based on at least two different combinations of at least two of the at least three provided images of the area of interest, and comparing the at least two sets of three-dimensional information so as to determine discrepancies and providing information related to the imaging system and/or errors in the images based on the determined discrepancies. Associated systems, computer programs, and computer program products are also provided.
Abstract:
The present invention relates to a method for estimating values for a set of parameters of an imaging system 1. The method comprises taking at least two pictures with the imaging system (1), where the at least two pictures are taken from different positions and where the at least two pictures comprise an at least partially overlapping area. It also comprises sending out pulses to the at least partially overlapping area, and detecting the reflected pulses and calculating distances between a sender of the pulses and the respective point where the pulses were reflected based on the travel time of the pulses. Further, the method comprises associating positioning data to the pictures and to the calculated distance between the points where the pulses were reflected and the sender of the pulses. Said positioning data comprises a position and pointing direction of the imagining system 1 and the sender of the pulses. The method comprises calculating first information about the area, based on the at least two pictures, the information comprising at least one quantity of the area, the at least one quantity comprising size and/or position, and calculating second information related to the calculated distances to the at least partly overlapping area, the second information comprising at least one quantity of the area, the at least one quantity comprising size and/or position. The method also comprises comparing values for the quantities contained in the first and second information, and, if the value for at least one quantity of the area obtained from the first information differs from the value for the corresponding at least one quantity of the area obtained from the second information, calculating values and/or an error estimate for the set of parameters of the imaging system 1 based on the difference.