Elbit Systems Ltd.

Eliyahu Tell

Hanan Shamir

Ilan Efrat

Asaf Ashkenazi

Liat Berger

Apparatus for remote imaging of a terrestrial area, the apparatus comprising: a camera array having a focal length f and a photosensor comprising photosensor pixels characterized by a photosensor pixel pitch P on which light from the terrestrial area is imaged from an operating distance A from the terrestrial area to acquire an image of the terrestrial area; an orthographic image of the terrestrial area having image pixels that image features in the terrestrial area; a terrain map that provides elevation for features in the terrestrial area imaged on the image pixels of the orthographic image; a controller that registers the image of the terrestrial area to the orthographic image responsive to the terrain data; wherein elevation provided by the terrain map has an uncertainty &#x394;&#x3b2; that satisfies a constraint P&#x2265;&#x394;e&#xb7;f&#xb7;sin &#x3b1;/A, where a is a maximum oblique angle at which the camera array images the terrestrial area so that registration of the image of the terrestrial area to the orthographic image has an accuracy better than or about equal to the pixel pitch.

Stabilization and display of remote images

Multi view multi spectral detection and tracking system comprising at lease one imager, at least one of the at least one imager being a multi spectral imager, the at least one imager acquiring at least two detection sequences, and at least two tracking sequences, each sequence including at least one image, each acquired image being associated with respective image attributes, an object detector, coupled with the at least one imager, detecting objects of interest in the scene, according to the detection sequence of images and the respective image attributes, an object tracker coupled with the object detector, the object tracker tracking the objects of interest in the scene and determining dynamic spatial characteristics and dynamic spectral characteristics for each object of interest according to the tracking sequences of images and the respective image attributes and an object classifier, coupled with the object tracker, classifying the objects of interest according to the dynamic spatial characteristics and the dynamic spectral characteristics.

Method and system for detection and tracking employing multi-view multi-spectral imaging

System for determining a distortion model for an optically distorting medium, the system including an image sensor located at an image acquisition position behind the optically distorting medium, and an image processor coupled with the image sensor, the image sensor acquiring an obstructed image of an object located substantially at infinity, when the optically distorting medium is located between the image sensor and the object in a line of sight connecting the image sensor and the object, the image sensor acquiring an unobstructed image of the object, when the optically distorting medium is absent from the line of sight, the image processor receiving information respective of the obstructed image and the unobstructed image from the image sensor, the image processor identifying a plurality of features in the unobstructed image, and a respective feature in the obstructed image for each of the identified features in the unobstructed image, thereby determining pairs of associated features, the image processor determining a distortion parameter for each of the pairs of associated features, the image processor determining a reference distortion model for the optically distorting medium, respective of the image acquisition position, according to the distortion parameters.

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Haifa, Israel

Eliyahu Tell