We demonstrate a nonlinear diffusion (NLD) regularization method to solve the transport of intensity equation (TIE). A novel NLD regularization function is proposed to enforce piecewise-constant priors and to remove low-frequency artifacts in the TIE solution.
© 2012 Optical Society of America
Original Manuscript: July 27, 2012
Manuscript Accepted: August 27, 2012
Published: September 28, 2012
Lei Tian, Jonathan C. Petruccelli, and George Barbastathis, "Nonlinear diffusion regularization for transport of intensity phase imaging," Opt. Lett. 37, 4131-4133 (2012)