Results 221 to 230 of about 2,557,405 (292)

Measurement of 3-D shape of droplet using digital holography

, 2008
Kenjiro KUMITANI, Shigeru MURATA, Yohsuke TANAKA   +2 more
openalex   +2 more sources

Numerically correcting the joint misplacement of the sub-holograms in spatial synthetic aperture digital Fresnel holography

, 2009
Hongzhen Jiang, Jianlin Zhao, Jianglei Di, Chuan Qin   +3 more
openalex   +1 more source

A Dynamic Analysis of Toron Formation in Chiral Nematic Liquid Crystals Using a Polarization Holographic Microscope. [PDF]

Polymers (Basel)
Reztsov TV, Chernykh AV, Orlova T, Petrov NV.   +3 more
europepmc   +1 more source

Intracellular doppler spectroscopy of live tissue sentinels for a fast in-vitro bacterial infection assay. [PDF]

Sci Rep
Lim D, Hua Z, Cunha FD, Turek J, Ladisch M, Nolte D.   +5 more
europepmc   +1 more source

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Two-step phase-shifting interferometry for self-interference digital holography.

Optics Letters, 2021
We propose a phase-shifting interferometry technique using only two in-line phase-shifted self-interference holograms. There is no requirement for additional recording or estimation in the measurement.
T. Tahara, Y. Kozawa, A. Ishii, K. Wakunami, Y. Ichihashi, R. Oi   +5 more
semanticscholar   +1 more source

High-speed imaging of the sound field by parallel phase-shifting digital holography.

Applied Optics, 2021
Sound field imaging techniques have been found very useful for acoustic designs. Building on this idea, innovative techniques are needed and presented in this paper, where we report on developed imaging of the sound field radiated from speakers by ...
Yuki Takase, Kazuki Shimizu, S. Mochida, Tomoyoshi Inoue, K. Nishio, S. Rajput, O. Matoba, P. Xia, Y. Awatsuji   +8 more
semanticscholar   +1 more source

Subtraction digital holography

Applied Optics, 2003
Overlapping of the desired (first-order) and undesired (zero-order) terms originating from the recorded primary-fringe patterns in digital holography is a problem without a real-time solution. We propose a procedure for suppressing the zero-order disturbance that is realizable in real time.
Nazif Demoli, Ivica Sović, Jurica Mes̆trović   +2 more
openaire   +4 more sources

Infrared digital holography

SPIE Proceedings, 2003
Digitally recorded holograms in the infrared region(10.6 Micron) are numerically reconstructed.
De Nicola S, Allaria E, Brugioni S, Ferraro P, Grilli S, Meucci R   +5 more
openaire   +4 more sources

Comparative digital holography

Optics Letters, 2002
We described a method for direct holographic comparison of the shape or the deformation of two objects when it is not necessary that both samples be located at the same place. In contrast to the well-known incoherent techniques based on inverse fringe projection, this new approach uses a coherent mask that is imaged onto a sample object that has a ...
Werner Jüptner, Wolfgang Osten, Torsten Baumbach   +2 more
openaire   +3 more sources

On the role of sparsity in digital holography

Imaging and Applied Optics 2015, 2015
We investigate the sparsity properties of digital holograms demonstrating a strictly correlation between refocusing criteria and sparsity measurements. Then, a sparsity-based denoising approach is implemented for optimal holographic reconstructions and optical display. © 2015 OSA.
Memmolo Pasquale, Paturzo Melania, Javidi Bahram, Netti Paolo A, Ferraro Pietro   +4 more
openaire   +4 more sources