Figure 1
From: Adaptive constraints by morphological operations for single-shot digital holography
(a) Optical configuration of an in-line holographic imaging system. BE, beam expander; L1–L2, lenses. (b1) In-line reconstruction by back-propagating to the object plane. (b2) Reconstruction by applying support constraints in the iterative phase retrieval method after 40 iterations. (b3) Reconstruction by applying adaptive constraints in the iterative phase retrieval method after 40 iterations. The support region is outlined by red lines and the constraint patterns are situated in the lower left corner respectively. (c) Schematic diagram for the steps of generating adaptive constraints.
