the invention provides a system and method for reducing the affects of scattering in an image . the system and method comprises providing at least one blocker array between an x - ray source and an object , obtaining a first image of the via a detector and a first signal , rotationally displacing the at least one blocker array , wherein primary radiation is disrupted at different locations in each projection image , obtaining a second image of the object via the detector and a second signal , estimating the scatter based on a comparison of the first signal and the second signal , and reconstructing a final image by accounting for scatter .