Saab Ab

Vricon Systems Aktiebolag

Vricon Systems Ab

Maxar International Sweden Ab

Ingmar Andersson

Folke Isaksson

Leif Haglund

Johan Borg

Per Carlbom

Johan Bejeryd

Magnus Brege

Ola Nygren

Ulf Erlandsson

Adam Tengblad

Fredrik Rosenqvist

Måns Hagström

Michael Olofsson

The present invention relates to a method and an arrangement for providing a 3D model of an environment. The method comprises the step of forming a mesh modelling the environment in three dimensions, said mesh comprising nodes interconnected by edges and having surfaces boarded by the edges, wherein each node is associated to a 3D coordinate in a geographical coordinate system, determining for a plurality of the nodes and/or surfaces and/or edges in the mesh a mesh uncertainty and associating the determined mesh uncertainty to the corresponding node and/or surface and/or edge.

Method and arrangement for providing a 3D model

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.

Route planning system and method for minimizing exposure to threats

A system and method for mixing a scene with a virtual scenario. An image capturing unit is arranged to capture at least one image so as to cover the scene from a first viewpoint. An image representation generation unit is arranged to generate at least one image representation based on the captured image. A game engine unit is arranged to generate a virtual scenario. An image processing unit is arranged to adapt the at least one image representation based on the generated virtual scenario so as to provide a virtual video sequence.

System and method for mixing a scene with a virtual scenario

The present invention relates to a method and arrangement for developing a 3D model of an environment. The method comprises steps of providing a plurality of overlapping images of the environment, each image associated of navigation data, providing distance information, said LIDAR information comprising a distance value and navigation data from a plurality of distance measurements, and developing the 3D model based on the plurality of overlapping images and the distance information. The step of developing the 3D model comprises the steps of providing the 3D model based on the plurality of overlapping images; and updating the 3D model with the distance information using an iterative process.

Method and arrangement for developing a three dimensional model of an environment

The present invention relates to a system () and method for determining a relation between a first scene and a second scene. The method comprises the steps of generating at least one sensor image of a first scene with at least one sensor; accessing information related to at least one second scene, said second scene encompassing said first scene, and matching the sensor image with the second scene to map the sensor image onto the second scene. The step of accessing information related to the at least one second scene comprises accessing a 3D map comprising geocoded 3D coordinate data. The mapping involves associating geocoding information to a plurality of positions in the sensor image based on the coordinate data of the second scene.

Method and system for determining a relation between a first scene and a second scene

A method is provided, which comprises generating at least three images of an area of interest from at least one imaging system, the generated images being provided from at least three different angles, establishing point correspondence between the provided images. The method further involves 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. The method further includes comparing the at least two sets of three-dimensional information so as to determine discrepancies, and providing information related to the imaging system or errors in the images based on the determined discrepancies.

Method and system for analyzing images from satellites

A method for estimating values for a set of parameters of an imaging system is presented. At least two pictures having an overlapping area are taken with the imaging system from different positions. Pulses are sent out to the area, the reflected pulses are detected and distances between a sender of the pulses and the respective point where the pulses were reflected are calculated based on the travel time of the pulses. First information about the area is calculated based on the pictures. Second information related to the calculated distances to the area is also calculated. Values for quantities contained in the first and second information are compared. If the value for a quantity obtained from the first information differs from the value obtained from the second information, values and/or an error estimate for the set of parameters of the imaging system is calculated based on the difference.

Method and an apparatus for estimating values for a set of parameters of an imaging system

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.

Method and arrangement for identifying a difference between a first 3D model of an environment and a second 3D model of the environment

Various embodiments relate to a method () and system for geo-referencing at least one sensor image. The method comprises the steps of: generating at least one sensor image of a first scene with at least one sensor, accessing a 3D model of the environment comprising geo-coded 3D coordinate data and related to at least one second scene, said second scene encompassing said first scene, matching the sensor image with the 3D model find a section of the 3D model where there is a match between the first and the second scenes, geo-referencing the sensor image based on the geo-coded 3D coordinate data of the found section of the 3D model, and determining a measure related to an uncertainty in the matching between the sensor image and the 3D model.

Method and system for geo-referencing at least one sensor image

A method for displaying a virtual image of three dimensional objects in an area using stereo recordings of the area for storing a pixel and a height for each point of the area. A method is obtained of enabling displaying of vertical surfaces or even slightly downwards and inwards inclined surfaces. Stereo recordings from at least three different stereo recordings of different solid angles are used. For each different solid angle at least one data base including data about texture and height pixel point wise is established. Data for displaying the virtual image are combined from the different data bases in dependence of the direction in which the virtual image is to be displayed.

Method for displaying a virtual image

The present invention relates to a method for determining the location of a firer, furthermore a system and method for route planning (). The system is arranged to be mounted on a moving object. The system comprises a position module (), a firer location estimation module () and a route planning module (). The position module () is arranged register the present position of the moving object at request and to determine the travel path of the moving object during a predetermined time period preceding the request, wherein the present position represents a target position for firing. The firer location method and the estimation module () is arranged to estimate the location of a firer based on the registered position and the determined travel path and based on map data () comprising 3D geographical coordinates data. The route planning module () arranged to plan a route of the object based on the determined location of the firer.

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Linkoeping, Sweden

Ingmar Andersson