Results 21 to 30 of about 190,665 (333)

Quantitative phase microscopies: accuracy comparison. [PDF]

open access: yesLight Sci Appl
This article presents a thorough comparison of themain QPM techniques, focusing on their accuracy in terms of measurement precision and trueness. We focus on 8 techniques, namely digital holographic microscopy (DHM), cross-grating wavefront microscopy (CGM), which is based on QLSI (quadriwave lateral shearing interferometry), diffraction phase ...
Chaumet PC   +4 more
europepmc   +2 more sources

Rainbow holographic interferometry [PDF]

open access: yesOptics Communications, 1978
Abstract A one-step rainbow holographic process is applied to holographic interferometry. Experimental demonstrations of double exposure and time-average interferograms are included. Comparison is made with the conventional holographic process. We found that the rainbow process provides better equality and less speckle noise.
Yu, F. T. S., Chen, Hsuan
openaire   +3 more sources

Elasticity measurement using holographic interferometry double exposure technique [PDF]

open access: yes, 2004
Holographic measurement of modulus elasticity was performed on samples of aluminum can. It is based upon the measurement of the displacement as a function number of fringes appeared on the body of the loaded can.
Bidin, Noriah, Chuan, Kua Hock
core   +1 more source

Channel sensing for holographic interference surfaces based on the principle of interferometry [PDF]

open access: yes, 2023
The Holographic Interference Surface (HIS) provides a new paradigm for building a more cost-effective wireless communication architecture. In this paper, we derive the principles of holographic interference theory for electromagnetic wave reception and transmission, whereby the optical holography is extended to communication holography and a channel ...
arxiv   +1 more source

Deep Learning-Based Wrapped Phase Denoising Method for Application in Digital Holographic Speckle Pattern Interferometry

open access: yesApplied Sciences, 2020
This paper presents a new processing method for denoising interferograms obtained by digital holographic speckle pattern interferometry (DHSPI) to serve in the structural diagnosis of artworks.
K. Yan   +4 more
semanticscholar   +1 more source

Quantitative phase imaging verification in large field-of-view lensless holographic microscopy via two-photon 3D printing. [PDF]

open access: yesSci Rep
Large field-of-view (FOV) microscopic imaging with high lateral resolution (1-2 microns for high space-bandwidth product) plays a pivotal role in biomedicine and biophotonics, especially within the label-free regime, e.g., for whole slide tissue quantitative analysis and live cell culture imaging.
Wdowiak E   +5 more
europepmc   +2 more sources

Digital holographic setups for phase object measurements in micro and macro scale

open access: yesEPJ Web of Conferences, 2015
The measurement of properties of so called phase objects is being solved for more than one Century starting probably with schlieren technique 1.
Lédl Vít   +3 more
doaj   +1 more source

Investigation of Nailed Timber Connections Using the Laser Interferometry Method

open access: yesSlovak Journal of Civil Engineering, 2018
The paper presents an adapted methodology of laser holographic interferometry for an investigation of the stress-strain state of nailed timber connections.
Savytskyi Mykola   +4 more
doaj   +1 more source

Incoherent Digital Holography for Multidimensional Motion Picture Imaging

open access: yesEngineering Proceedings, 2023
Incoherent digital holography (IDH) is a technique used to obtain a three-dimensional (3D) image of spatially incoherent light diffracted from an object as an incoherent hologram.
Tatsuki Tahara   +4 more
doaj   +1 more source

Digital Double-Pulse Holographic Interferometry for Vibration Analysis

open access: yesShock and Vibration, 1996
Different arrangements for double-pulsed holographic and speckle interferometry for vibration analysis will be described. Experimental results obtained with films (classical holographic interferometry) and CCD cameras (digital holographic interferometry)
H.J. Tiziani, G. Pedrini
doaj   +1 more source

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