IMAGING-BASED DETECTION OF TARGETS UNIDENTIFIABLE WITH RESPECT TO THE BACKGROUND

摘要

An imaging-based target detection system comprising an electromagnetic radiation emitting source () to be associated with a target () to be detected and pulsedly operable according to an operation pattern to emit electromagnetic radiation; an imaging sensor () sensitive to the electromagnetic radiation emitted by the electromagnetic radiation emitting source (), and operable to capture digital images of the electromagnetic radiation emitting source (); and an electronic processing unit () connected to the imaging sensor () and configured to operate the imaging sensor () synchronously with respect to the pulsed operation of the electromagnetic radiation emitting source () so as to cause the imaging sensor () to carry out a digital image capture cycle during which a plurality of digital images are successively captured and comprise a first digital image captured when the imaging sensor () is impinged by electromagnetic radiation emitted by the electromagnetic radiation emitting source (), and at least a second image captured when the imaging sensor () is not impinged by any electromagnetic radiation emitted by the electromagnetic radiation emitting source (); and process the captured digital images to detect the target (). The electronic processing unit () is further configured to synchronise operation of the imaging sensor () with respect to the pulsed operation of the electromagnetic radiation emitting source () based on the digital images captured by imaging sensor ().