Quasi-Noise-Free and Detail-Preserved Digital Holographic Reconstruction

Dual wavelength digital holographic Laplacian reconstruction.

Access to the spatial derivatives of an optical wave field can be used to enhance edge detection, focusing, and holographic imaging. It was recently shown that, by using digital holographic techniques, the Laplacian of an object field can be extracted. Here it is demonstrated that equivalent results can be found using two holograms captured at either two distances or with two appropriately rela...

Alternative Reconstruction Method and Object Analysis in Digital Holographic Microscopy

Digital Holographic Capture and Optoelectronic Reconstruction for 3D Displays

The application of digital holography as a viable solution to 3D capture and display technology is examined. A review of the current state of the field is presented in which some of the major challenges involved in a digital holographic solution are highlighted. These challenges include (i) the removal of the DC and conjugate image terms, which are features of the holographic recording process,...

Quasi-physical phase compensation in digital holographic microscopy.

In digital holographic microscopy, if an optical setup is well aligned, the phase curvature introduced by the microscope objective (MO) together with the illuminating wave to the object wave is a spherical phase curvature. It can be physically compensated by introducing the same spherical phase curvature in the reference beam. Digital holographic microscopy setups based on the Michelson interfe...

Digital holographic reconstruction detection of localized corrosion arising from scratches

In this study , electro chemical methods and th e di gital holograph ic reconstruction technique were combined to detect the localized scratch-induced corrosion process of Alloy 690 in 0.50 mol dm-3 H2SO4 containing 0.10 mol dm-3 Na Cl. Th e nu merical re construction method ha s been proved to be an effective technique to detect changes of solution concentration. One can obtain direct infor ma...