Journal ArticleDOI
Phase aberration compensation for digital holographic microscopy based on double fitting and background segmentation
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TLDR
A purely automatic and accurate phase aberration compensation method in digital holographic microscopy for phase-contrast imaging of living cells that outperforms the phase-variation-minimization method in terms of noise robustness and calculation speed.About:
This article is published in Optics and Lasers in Engineering.The article was published on 2019-04-01. It has received 20 citations till now. The article focuses on the topics: Digital holographic microscopy & Image segmentation.read more
Citations
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Journal ArticleDOI
Dense-U-net: Dense encoder-decoder network for holographic imaging of 3D particle fields
TL;DR: A dense encoder–decoder network, called Dense-U-net, is proposed to realize the reconstruction of a 3D particle field, and the features with high signal-to-noise ratio at the center of the particle and the diffraction features around the particle can be learned, facilitating the full characterization of the particles.
Journal ArticleDOI
Compensation of aberrations in holographic microscopes: main strategies and applications
Daniele Gaetano Sirico,Lisa Miccio,Zhe Wang,Pasquale Memmolo,Wen Xiao,Leiping Che,Lu Xin,Feng Pan,Pietro Ferraro +8 more
TL;DR: In this article , the most effective and robust methods to remove or compensate phase aberrations in retrieved quantitative phase imaging by digital holography are presented and discussed in detail on how to remove and compensate for such disturbing artifacts.
Journal ArticleDOI
Phase aberration compensation of digital holographic microscopy with curve fitting preprocessing and automatic background segmentation for microstructure testing
TL;DR: In this paper, a numerical phase aberration compensation method with global curve fitting preprocessing and automatic extraction of the background region for microstructure testing is proposed, which can compensate most of the tilt, quadratic and partial high order aberrations and make the profile of the measured object significantly distinguishable.
Journal ArticleDOI
Phase aberration compensation for digital holographic microscopy based on geometrical transformations
TL;DR: In this paper, a simple phase aberration compensation method based on geometrical transformations was proposed for single-shot quantitative phase imaging without complex numerical fitting procedures or prior knowledge of the specimen and system.
References
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Journal ArticleDOI
Satellite radar interferometry: Two-dimensional phase unwrapping
TL;DR: In this paper, an approach to 'unwrapping' the 2 pi ambiguities in the two-dimensional data set is presented, where it is found that noise and geometrical radar layover corrupt measurements locally, and these local errors can propagate to form global phase errors that affect the entire image.
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Digital holographic microscopy: a noninvasive contrast imaging technique allowing quantitative visualization of living cells with subwavelength axial accuracy.
Pierre Marquet,Benjamin Rappaz,Pierre J. Magistretti,Etienne Cuche,Yves Emery,Tristan Colomb,Christian Depeursinge +6 more
TL;DR: A digital holographic microscope, in a transmission mode, especially dedicated to the quantitative visualization of phase objects such as living cells, is developed, based on an original numerical algorithm presented in detail elsewhere.
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High-resolution quantitative phase-contrast microscopy by digital holography
TL;DR: Techniques of digital holography are improved in order to obtain high-resolution, high-fidelity images of quantitative phase-contrast microscopy, and the angular spectrum method of calculating holographic optical field is seen to have significant advantages including tight control of spurious noise components.
Journal ArticleDOI
Compensation of the inherent wave front curvature in digital holographic coherent microscopy for quantitative phase-contrast imaging
Pietro Ferraro,Sergio De Nicola,Andrea Finizio,Giuseppe Coppola,Simonetta Grilli,Carlo Magro,Giovanni Pierattini +6 more
TL;DR: An approach is proposed for removing the wavefront curvature introduced by the microscope imaging objective in digital holography, which otherwise hinders the phase contrast imaging at reconstruction planes and it is shown that a correction effect can be obtained at all reconstruction planes.