title: Nonlinearity compensation and complex-to-phase conversion of complex incoherent digital holograms for optical reconstruction.
abstract: Incoherent digital holography (IDH) can be realized by optical scanning holography or self-interference incoherent holography. Although IDH can exhibit high quality reconstruction due to its inherently speckle-free property, direct display of an incoherent hologram is a challenge because of its amplitude nonlinearity and the demand of complex modulation. In this paper we propose to compensate the amplitude nonlinearity at the object plane, and use bidirectional error-diffusion method to convert the complex-type incoherent Fresnel hologram to a phase-only Fresnel hologram for display. A spatial light modulator is used to reconstruct the phase-only hologram optically to demonstrate the validity of our proposed method.
authors.forename: Jung-Ping
authors.initials: JP
authors.lastname: Liu
authors.forename: Sheng-Yen
authors.initials: SY
authors.lastname: Wang
authors.forename: P W M
authors.initials: PW
authors.lastname: Tsang
authors.forename: Ting-Chung
authors.initials: TC
authors.lastname: Poon