Elbit Systems Land and C4i Ltd.

Elbit Systems Land and C4l Ltd.

Benny Goldman

Eli Haham

David Zaphir

Ido Ariav

Ido Bergman

Navigation systems and methods are provided. A classifier is configured to transform a received image of a terrain into a classified image in which patches of pixels from the received image are represented as being in one of a specified number of material classes, each associated with respective terrain parameters. A physical traversability module is configured to determine, for the material parameters, a terrain topography and given vehicle parameters, a degree of traversability of the vehicle through the terrain as represented by the received image, to yield a traversability map. A routing module is configured to derive traversability measure(s) for route(s) through the classified image and with respect to the traversability map, between a given origin and a given destination or within a region with respect to a user-defined mission. A graphical user interface is configured to display the route(s) according to the traversability measure(s).

Open terrain navigation systems and methods

Method/system for determining pose of camera using another camera imaging common scene, by capturing first scene image with first camera and obtaining first camera pose by georegistering to 3D-model, extracting scene features in first image, determining 3D coordinates of extracted features by mapping to 3D model, transmitting feature descriptors and feature coordinates, capturing second scene image with second camera, extracting scene features in second image and matching with first image features, determining second camera pose using 3D scene coordinates and corresponding 2D projections in second image. Method/system for determining pose of one camera using another camera in same camera assembly with known relative pose between cameras in assembly, by capturing image of scene with first camera and determining 3D coordinates of first camera by georegistering to 3D-model, and determining pose of second camera based on determined global pose of first camera and relative pose between second camera and first camera.

Method and system for image georegistration

Image georegistration method and system. An imaging sensor acquires a sensor-image of a scene. Imaging parameters of the acquired sensor-image are obtained, the imaging parameters including at least the detected 3D position and orientation of the imaging sensor when acquiring the sensor-image, as detected using a location measurement unit. A model-image of the scene is generated from a textured 3D geographic model, the model-image representing a texture-based 2D image of the scene as acquired in the 3D model using the imaging parameters. The sensor-image and the model-image are compared and the discrepancies between them determined. An updated 3D position and orientation of the imaging sensor is determined in accordance with the discrepancies. The updated position and orientation may be used to display supplementary content overlaid on the sensor-image in relation to a selected location on the sensor-image, or for determining the geographic location coordinates of a scene element.

Method and system for coordinating between separate image sensors imaging a mutual area of interest at different imaging perspectives. A target point is designated on a first image acquired by a first image sensor. Feature points are defined and characterized on the first image and transmitted over a data communication link to a second image sensor. The target point is identified in a second image acquired by the second image sensor using an iterative convergence operation. The first iteration involves locating feature points in the second image corresponding to the defined first image feature points. Subsequent iterations involve locating feature points in a subregion of the second image corresponding to decreasing subsets of first image feature points, the subregion defined by the feature point cluster located in the previous iteration. When a termination condition is reached, the remaining cluster of located feature points is established to represent the target point.

Growing community of inventors

Givatayim, Israel

Benny Goldman