1. A method for selecting a moving object of interest in a succession of images of a scene, the succession of images being generated by a remote sensor unit communicating with a control unit through a communication link, the method comprising: in the remote sensor unit: receiving from the control unit data indicative of estimated future coarse location of a selected moving object in the succession of images of the scene, wherein the moving object is selected in the control unit while a time delay exists resulting from a timing difference between a first timing that the image including the moving object is generated in the remote sensor and a second timing in which the moving object is located in a real-time image at the control unit, and a third timing when the data from the control unit is received by the sensor unit; generating a further succession of images of an area in the scene, the area including the estimated future coarse location of the selected moving object, comparing between at least two images of said further succession of images, and in the case of a difference in at least a respective portion of the area that includes the coarse location of the selected moving object in the at least two images meets a given threshold, the difference, in a later image, is identified as a candidate of the selected moving object; and executing, in the remote sensor, substantially real-time location of a selected moving object notwithstanding the time delay.