Results 1 to 10 of about 72,954 (249)
Low-intensity illumination for lensless digital holographic microscopy with minimized sample interaction. [PDF]
Biomed Opt Express, 2022 Exposure to laser light alters cell culture examination via optical microscopic imaging techniques, also based on label-free coherent digital holography. To mitigate this detrimental feature, researchers tend to use a broader spectrum and lower intensity of illumination, which can decrease the quality of holographic imaging due to lower resolution and ...
Mirecki B +6 more
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Imaging in digital holographic microscopy
Optics Express, 2007 We present a theoretical formalism for three dimensional (3D) imaging properties of digital holographic microscopy (DHM). Through frequency analysis and visualization of its 3D optical transfer function, an assessment of the imaging behavior of DHM is given. The results are compared with those from other types of interference microscopy.
Shan Shan Kou, Colin J. R. Sheppard
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Lipid quantification in living microalgal cultures with digital holographic microscopy [PDF]
Frontiers in Photonics, 2022 Large amounts of lipids are stored inside lipid droplets by some microalgae. Since these lipids can be used to produce nutraceuticals and biodiesel in a sustainable way, research is developing on fast non-destructive methods to quantify and monitor the ...
Catherine Yourassowsky +3 more
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Label-Free Analysis of Urine Samples with In-Flow Digital Holographic Microscopy [PDF]
Biosensors, 2023 Urinary tract infections are among the most frequent infectious diseases and require screening a great amount of urine samples from patients. However, a high percentage of samples result as negative after urine culture plate tests (CPTs), demanding a ...
Lucia Gigli +4 more
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Human live spermatozoa morphology assessment using digital holographic microscopy [PDF]
Scientific Reports, 2022 Digital holographic microscopy (DHM) was applied for the morphological assessment of live intact spermatozoa from fertile and infertile men directly after semen liquefaction.
Marzena Kamieniczna +4 more
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pyDHM: A Python library for applications in digital holographic microscopy. [PDF]
PLoS ONE, 2022 pyDHM is an open-source Python library aimed at Digital Holographic Microscopy (DHM) applications. The pyDHM is a user-friendly library written in the robust programming language of Python that provides a set of numerical processing algorithms for ...
Raul Castañeda +2 more
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Grading of glioma tumors using digital holographic microscopy [PDF]
HeliyonGliomas are the most common type of cerebral tumors; they occur with increasing incidence in the last decade and have a high rate of mortality. For efficient treatment, fast accurate diagnostic and grading of tumors are imperative. Presently, the grading
Violeta L. Calin +11 more
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Principles and techniques of digital holographic microscopy [PDF]
Journal of Photonics for Energy, 2010 Digital holography is an emerging field of new paradigm in general imaging applications. We present a review of a subset of the research and development activities in digital holography, with emphasis on microscopy techniques and applications. First, the basic results from the general theory of holography, based on the scalar diffraction theory, are ...
Myung K. Kim
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Deep learning with digital holographic microscopy discriminates apoptosis and necroptosis [PDF]
Cell Death Discovery, 2021 Regulated cell death modalities such as apoptosis and necroptosis play an important role in regulating different cellular processes. Currently, regulated cell death is identified using the golden standard techniques such as fluorescence microscopy and ...
Joost Verduijn +3 more
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Tip Crack Imaging on Transparent Materials by Digital Holographic Microscopy [PDF]
Journal of Imaging, 2019 With this study, we propose a method to image the tip crack on transparent materials by using digital holographic microscopy. More specifically, an optical system based on Mach−Zehnder interference along with an inverted microscopy (Olympus CKX53 ...
Wen-Jing Zhou +6 more
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