1. A method for processing incoming images in real-time, the method comprising: applying a change detection procedure to detect at least one change in the image; generating a 3D spatio-temporal volume of said change in the image; converting the 3D spatio-temporal image onto a 2D spatial-temporal image using Hough Transform; and extracting a 2D band in said 2D spatial-temporal image, wherein said band is a trajectory of a moving object of interest in said image.