1. A fusion imaging method for enhancing object visibility in a scene containing a scattering medium, said method comprising the steps of: (i) illuminating the scene with an active, widefield illumination system and acquiring a first image of said scene; (ii) acquiring one or more additional images of said scene such that each image is taken with a different illumination position of said scene or with a different camera position or both; and (iii) applying a fusion technique using each image components to obtain an image with enhanced contrast, comprising the steps of: a. decomposing each image into a Gaussian and a Laplacian pyramid; b. creating a new Laplacian pyramid, in which each level is composed of values from the corresponding level in the Laplacian pyramids of all the images; and c. decoding the final image using the new pyramid.