title: Zero difference algorithm for phase shift extraction in blind phase-shifting holography.
abstract: A simple noniterative algorithm for retrieval of the unknown phase shifts in phase-shifting holography is proposed. In this algorithm, the phase shift value between two phase-shifting holograms can be calculated through a simple analytical formula that is derived according to the fact that there exist some points whose intensity difference between two phase-shifting holograms is equal to zero. Both the simulated and experimental results demonstrated the feasibility of this so-called zero difference algorithm over a wide range of phase shifts.
authors.forename: Cheng-Shan
authors.initials: CS
authors.lastname: Guo
authors.forename: Bei
authors.initials: B
authors.lastname: Sha
authors.forename: Yi-Yan
authors.initials: YY
authors.lastname: Xie
authors.forename: Xiu-Jiang
authors.initials: XJ
authors.lastname: Zhang