1. A method for detecting closely spaced objects, comprising the steps of: imaging a scene; running a first algorithm, having a predetermined CFAR, to determine whether there are any single object detections within the scene; running a second algorithm, having substantially the same predetermined CFAR and having at a first regional window corresponding to a matrix of pixels, to determine whether there are closely spaced objects within the regional window; and recording the closely spaced objects detected within the regional window.