Results 111 to 120 of about 51,169 (250)

Ultrafast nonlinear dynamics in thin GaN films studied by femtosecond digital holography

open access: yesEPJ Web of Conferences, 2013
We studied the nonlinear propagation dynamics of intense 300 fs infrared pulses in thin GaN films by use of pulsed digital holography technique with 25 fs temporal resolution.
Melninkaitis A.   +5 more
doaj   +1 more source

Convolutional neural network-based regression for depth prediction in digital holography [PDF]

open access: yesarXiv, 2018
Digital holography enables us to reconstruct objects in three-dimensional space from holograms captured by an imaging device. For the reconstruction, we need to know the depth position of the recoded object in advance. In this study, we propose depth prediction using convolutional neural network (CNN)-based regression.
arxiv  

Synthetic-aperture experiment in the visible with on-axis digital heterodyne holography [PDF]

open access: yesOptics Letters 26, 20 (2001) 1550, 2011
We have developed a new on-axis digital holographic technique, heterodyne holography. The resolution of this technique is limited mainly by the amount of data recorded on two-dimensional photodetectors, i.e., the number of pixels and their size. We demonstrate that it is possible to increase the resolution linearly with the amount of recorded data by ...
arxiv  

Cell image reconstruction using digital holography with an improved GS algorithm. [PDF]

open access: yesFront Physiol, 2022
Jiang Y   +8 more
europepmc   +1 more source

Interpolation-Filtering Method for Image Improvement in Digital Holography

open access: yesApplied Sciences
Digital holography is actively used for the characterization of objects and 3D-scenes, tracking changes in medium parameters, 3D shape reconstruction, detection of micro-object positions, etc.
Alexander V. Kozlov   +5 more
doaj   +1 more source

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