Abstract: An optical system including a beam of radiation, an optical sensing device and boresighting apparatus. The boresighting apparatus includes apparatus for sensing the location of the beam of radiation relative to a given beam reference location and for providing an output indication thereof and including computing apparatus receiving the output indication from the optical sensing device. The boresighting apparatus further includes apparatus for defining an aiming location in the optical sensing device which aiming location is related to the output indication and including apparatus for providing an optical system reference image at a predetermined spatial separation from the beam reference location which is sensible by the optical sensing device.

Abstract: A method of and a system for scanning a scene for the purpose of classifying a plurality of moving objects located in the scene and having an average distance between them, including the steps of performing a sweep of the scene, during the sweep, producing a multiplicity of detections of at least one portion of the scene at a rate such that a distance traveled by the moving objects between detections is small with respect to the average distance, and calculating, from the multiple detections, two-dimensional motion information for at least some of the moving objects.