title: Nonlinear diffusion regularization for transport of intensity phase imaging.
abstract: 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.
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. lei_tian@mit.edu
authors.forename: Lei
authors.initials: L
authors.lastname: Tian
authors.forename: Jonathan C
authors.initials: JC
authors.lastname: Petruccelli
authors.forename: George
authors.initials: G
authors.lastname: Barbastathis