Results 41 to 50 of about 5,322 (221)

Histomorphometric study of human thyroid follicles with digital holographic microscopy

Revista Cubana de Investigaciones Biomédicas, 2020
Introduction: Digital holographic microscopy has allowed optical microscopy to make use of numerical and computational tools, making multiple contributions to the study of cells and tissues in different fields of medicine and other related sciences ...
Nadia Inés Infante Tavio, Rafael Escalona Veloz, Lillian Sierra Calzado, Guillermo Palacios Roque   +3 more
doaj  

Efficient Phase Unwrapping Architecture for Digital Holographic Microscopy

Sensors, 2011
This paper presents a novel phase unwrapping architecture for accelerating the computational speed of digital holographic microscopy (DHM). A fast Fourier transform (FFT) based phase unwrapping algorithm providing a minimum squared error solution is ...
Wen-Jyi Hwang, Chau-Jern Cheng, Shih-Chang Cheng   +2 more
doaj   +1 more source

Applications of Digital Holography: From Microscopy to 3D-Television [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
The paper gives an overview of the applications of digital holography based on the one hand on CCD-recording, computer storage, and numerical reconstruction of the wave fields, and on the other hand on numerical calculation of computer generated ...
Kreis T.
doaj   +1 more source

Automatic Spatial Filtering by Combining Wavelet-Transform Modal Maxima and Mathematical Morphology in Digital Holographic Microscopy

Photonics, 2023
Digital holographic microscopy has significant advantages over traditional 3D measurements. In order to obtain a reconstructed image of superior quality, the zero-order-term spectrum and the −1 term spectrum must be eliminated during the digital ...
Hu Xiong, Dawei Zhang
doaj   +1 more source

Nanometric depth resolution from multi-focal images in microscopy [PDF]

, 2011
We describe a method for tracking the position of small features in three dimensions from images recorded on a standard microscope with an inexpensive attachment between the microscope and the camera.
Dalgarno, Heather I. C., Dalgarno, Heather I.C., Dada, Adetunmise C., Greenaway, AH, Parton, Richard M., Dalgarno, H. I C, Dada, Adetunmise C, Towers, Catherine E., Gavin J. Gibson, Dalgarno, Paul A., Gibson, GJ, Paul A. Dalgarno, Adetunmise C. Dada, Richard J. Warburton, Parton, Richard M, Alan H. Greenaway, Gibson, Gavin J, Gibson, Gavin J., Dalgarno, Paul A, Warburton, RJ, Catherine E. Towers, Dalgarno, HI, Ilan Davis, Greenaway, Alan H, Davis, Ilan, Greenaway, Alan H., Parton, RM, Towers, Catherine E, Dada, AC, Dalgarno, Heather I C, Heather I. C. Dalgarno, Warburton, Richard J., Warburton, Richard J, Richard M. Parton, Dalgarno, PA, Davis, I, Towers, CE, Dalgarno, Paul A.; id_orcid   +37 more
core   +1 more source

Tutorial: Common path self-referencing digital holographic microscopy

APL Photonics, 2018
Quantitative phase imaging of cells provides important morphological information about them, leading to their characterization, comparison, and identification.
A. Anand, V. Chhaniwal, B. Javidi
doaj   +1 more source

Early cell death detection with digital holographic microscopy.

PLoS ONE, 2012
BackgroundDigital holography provides a non-invasive measurement of the quantitative phase shifts induced by cells in culture, which can be related to cell volume changes.
Nicolas Pavillon, Jonas Kühn, Corinne Moratal, Pascal Jourdain, Christian Depeursinge, Pierre J Magistretti, Pierre Marquet   +6 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Invisible Polymer Walls Enhance Reorientational Optical Nonlinearity in Oligothiophene‐Doped Liquid Crystals

Advanced Functional Materials, EarlyView.
The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota, Yuya Nakata, Erika Katayama, Miho Aizawa, Kyohei Hisano, Shoichi Kubo, Atsushi Shishido   +6 more
wiley   +1 more source

Microsphere-assisted digital in-line holographic microscopy

JPhys Photonics
Digital in-line holographic microscopy (DIHM) is known for its compact, easy-to-implement, and phase-stable configuration that enables full-field three-dimensional (3D) reconstruction and non-invasive motion tracking.
Vahid Abbasian, Vahideh Farzam Rad, Humberto Cabrera, Arash Darafsheh   +3 more
doaj   +1 more source