1. A miniature autonomous apparatus for scene interpretation, comprising: a digital camera for producing an image of a scene; and a processor associated with the camera, the processor configured to control a dynamic range control process and an image detection process, wherein the processor is configured to: acquire a plurality of images of said scene from said digital camera; based on said plurality of images, construct a parametric image and determine an initial parametric representation of each pixel of the parametric image, wherein a new parametric representation is repeatedly calculated for each pixel in said parametric image, based on a current parametric representation of said pixel and a pixel value of a corresponding pixel of an incoming image; wherein the image detection process includes at least a first process for comparing pixels of the parametric image with pixels of an incoming image so as to assign for each received pixel a pixel type out of a plurality of possible pixel types including hot pixels and other pixels; compute a binary hot pixels image; and define at least a first target from the hot pixels; and wherein at least hot pixels are further processed according to at least a second process not performed upon the other pixels.