Results 81 to 90 of about 16,139 (251)

Single-exposure full-field multi-depth imaging using low-coherence holographic multiplexing

, 2018
We present a new interferometric imaging approach that allows for multiple-depth imaging in a single acquisition, using off-axis low-coherence holographic multiplexing. This technique enables sectioned imaging of multiple slices within a thick sample, in
Shaked, Natan T., Turko, Nir A., Wolbromsky, Lauren   +2 more
core   +1 more source

Unstained Blood Smear Analysis: A Review of Rule‐Based, Machine Learning, and Deep Learning Techniques

Journal of Biophotonics, EarlyView.
Bright‐field images of unstained smears. (1) Sparse erythrocytes allow straightforward intensity‐ or phase‐based segmentation. (2) Overlapping cells blur boundaries, causing over‐ or under‐segmentation and lowering rule‐based accuracy, thus motivating overlap‐aware algorithms for reliable downstream feature extraction and classification. ABSTRACT Blood
Husnu Baris Baydargil, Thomas Bocklitz
wiley   +1 more source

From Single to Multi‐Material 3D Printing of Glass‐Ceramics for Micro‐Optics

Small Methods, EarlyView.
This article explores advancements in two‐photon lithography (TPL) for fabricating high‐refractive‐index micro‐optics. It examines single and multi‐material 3D architectures in glass and ceramics (GLACEs), highlighting photoresin customization, critical fabrication conditions, and cross‐scale structural and optical characterization.
Joel Arriaga‐Dávila, Cristian Rosero‐Arias, Dirk Jonker, Margoth Córdova‐Castro, Josua Zscheile, Robert Kirchner, Alan Aguirre‐Soto, Robert Boyd, Israel De Leon, Han Gardeniers, Arturo Susarrey‐Arce   +10 more
wiley   +1 more source

Regulating Topographical Deformation Response of Liquid Crystal Coatings by Electrical Quenching of Liquid Crystal Order Fluctuation

Small Structures, EarlyView.
The suppression effect of electrical order quenching on the actuation of liquid crystal (LC) polymers is revealed. The LCs are aligned into homeotropic alignment, but with high electric field strength, to quench the order fluctuation of LCs. By engineering the electrode structures, invertible surface topography can be afforded taking advantage of this ...
Wei Feng
wiley   +1 more source

Holographic fluorescence microscopy with incoherent digital holographic adaptive optics

Journal of Biomedical Optics, 2015
Introduction of adaptive optics technology into astronomy and ophthalmology has made great contributions in these fields, allowing one to recover images blurred by atmospheric turbulence or aberrations of the eye. Similar adaptive optics improvement in microscopic imaging is also of interest to researchers using various techniques.
Seung-Jae Lee, Byoungho Lee, Jonghyun Kim, Myung K. Kim, Changwon Jang, David C. Clark   +5 more
openaire   +3 more sources

Imaging malaria parasites across scales and time

Journal of Microscopy, EarlyView.
Abstract The idea that disease is caused at the cellular level is so fundamental to us that we might forget the critical role microscopy played in generating and developing this insight. Visually identifying diseased or infected cells lays the foundation for any effort to curb human pathology.
Julien Guizetti
wiley   +1 more source

Automated Three-Dimensional Microbial Sensing and Recognition Using Digital Holography and Statistical Sampling

Sensors, 2010
We overview an approach to providing automated three-dimensional (3D) sensing and recognition of biological micro/nanoorganisms integrating Gabor digital holographic microscopy and statistical sampling methods.
Inkyu Moon, Faliu Yi, Bahram Javidi
doaj   +1 more source

Artificial intelligence‐powered microscopy: Transforming the landscape of parasitology

Journal of Microscopy, EarlyView.
Abstract Microscopy and image analysis play a vital role in parasitology research; they are critical for identifying parasitic organisms and elucidating their complex life cycles. Despite major advancements in imaging and analysis, several challenges remain. These include the integration of interdisciplinary data; information derived from various model
Mariana De Niz, Sara Silva Pereira, David Kirchenbuechler, Leandro Lemgruber, Constadina Arvanitis   +4 more
wiley   +1 more source

Imaging of Live Cells by Digital Holographic Microscopy

Photonics
Imaging of microscopic objects is of fundamental importance, especially in life sciences. Recent fast progress in electronic detection and control, numerical computation, and digital image processing, has been crucial in advancing modern microscopy ...
Emilia Mitkova Mihaylova
doaj   +1 more source

Numerical focusing and the field of view in interference microscopy [PDF]

Компьютерная оптика, 2018
This paper presents an analysis of the effects occurring at the borders of the field of view in numerically focused imaging of optically defocused objects in interference microscopy systems with spatially coherent illumination of an object.
Anton Grebenyuk, Daria Klychkova, Vladimir Ryabukho   +2 more
doaj   +1 more source