title: Coded aperture pair for quantitative phase imaging.
abstract: This Letter proposes a novel quantitative phase-imaging approach by optically encoding light fields into a complementary image pair followed by computational reconstruction. We demonstrate that the axial intensity derivative for phase recovery can be well estimated by a coded-aperture image pair without z axial scanning. The experimental results demonstrate that our approach can achieve higher accuracy and robustness compared with conventional transport-of-intensity equation (TIE) based approaches under partial coherence illumination.
authors.forename: Jiamin
authors.initials: J
authors.lastname: Wu
authors.forename: Xing
authors.initials: X
authors.lastname: Lin
authors.forename: Yebin
authors.initials: Y
authors.lastname: Liu
authors.forename: Jinli
authors.initials: J
authors.lastname: Suo
authors.forename: Qionghai
authors.initials: Q
authors.lastname: Dai