Normalized Ghost Imaging
  We present an experimental comparison between different iterative ghost imaging algorithms. Our experimental setup utilizes a spatial light modulator for generating known random light fields to illuminate a partially-transmissive object. We adapt the weighting factor used in the traditional ghost imaging algorithm to account for changes in the efficiency of the generated light field. We show that our normalized weighting algorithm can match the performance of differential ghost imaging. 
Baoqing Sun, Stephen S. Welsh, Matthew P. Edgar, Jeffrey H. Shapiro,   and Miles J. Padgett
physics.optics quant-ph