Before revision:  Algorithms have already been described that can correct movement of entire frames or large regions of frames at exposures of 2-3 e^{- rolling averages to be calculated from frames and fit linear trajectories for particles.
After revision:  Algorithms have already been described that can correct movement for large regions of frames at exposures of 2-3 e^{- rolling averages to be calculated from frames and fit linear trajectories for particles.