Results 221 to 230 of about 381,395 (248)

Quantitative phase imaging: introduction

Journal of the Optical Society of America A
Quantitative phase imaging (QPI), propelled by advancements in digital holography and computational imaging, has revolutionized the ability to retrieve phase delays with high precision. Over the past two decades, the field has seen tremendous growth, contributing to numerous applications in biomedicine and material metrology, including live cell ...
Chenfei Hu, Seung Ah Lee, Yang Liu, YongKeun Park, Peter T. C. So, Renjie zhou   +5 more
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GPC and quantitative phase imaging

SPIE Proceedings, 2016
Generalized Phase Contrast (GPC) is a light efficient method for generating speckle-free contiguous optical distributions using binary-only or analog phase levels. It has been used in applications such as optical trapping and manipulation, active microscopy, structured illumination, optical security, parallel laser marking and labelling and recently in
Darwin Palima, Andrew Rafael Bañas, Mark Jayson Villangca, Jesper Glückstad   +3 more
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Quantitative Phase Imaging in Microscopy

2009
Phase imaging can be used in a reflection or transmission geometry. In biology it has the advantage of being marker-free. It can measure physical shape, and refractive index variations, ideally in three dimensions (3D). In transmission, phase is related to optical path difference.
Colin JR Sheppard, Shan S Kou, Shalin Mehta   +2 more
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Quantitative Phase Imaging by Evanescent Wave Microscopy

Frontiers in Optics 2017, 2017
Here we show the versatility of Digital Holography Microscopy for the development of innovative systems for quantitative phase imaging of Total Internal Reflection.
Mandracchia B, Paturzo M, Ferraro P
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Coded aperture pair for quantitative phase imaging

Optics Letters, 2014
This Letter proposes a novel quantitative phase-imaging approach by optically encoding light fields into a complementary image pair followed by computational reconstruction. We demonstrate that the axial intensity derivative for phase recovery can be well estimated by a coded-aperture image pair without z axial scanning.
Jiamin, Wu, Xing, Lin, Yebin, Liu, Jinli, Suo, Qionghai, Dai   +4 more
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Quantitative phase imaging by optimized asymmetric illumination

Applied Optics, 2017
We have presented a simple approach for quantitative phase imaging by optimizing asymmetric illumination of a conventional microscope. With this illumination, the light intensity modulation accompanying refraction at the surface profile of phase objects occurs, and "phase-gradient information" can be derived by detecting it.
Yoshimasa, Suzuki, Mayumi, Odaira, Hisashi, Ohde, Yoshimasa, Kawata   +3 more
openaire   +2 more sources

Autofocus in quantitative phase imaging

Unconventional Optical Imaging III, 2022
Yannuo Wen, Yue Wang, John J. Healy
openaire   +1 more source

Superphantoms for Quantitative Phase Imaging

Optica Imaging Congress 2025 (3D, DH, COSI, IS, pcAOP,RadIT)
Superphantoms are crafted from imaging and functional data to replicate optical and structural properties of biological samples. The talk is focused on the design, fabrication and validation of phantoms with adjustable phase, refractive index distribution, absorption, scattering etc., and their applications.
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Quantitative phase imaging with two in-line holograms

Optics Letters
Quantitative phase imaging (QPI) has emerged as a practical technique for acquiring structural information from phase objects. Digital holography can realize phase detection, but it is limited by a spatial bandwidth product or affected by the overlap of conjugate images.
Xiu Wen, Ziling Qiao, Yiran Wang, Zhengjun Liu   +3 more
openaire   +2 more sources

Computational quantitative phase imaging

Advanced Optical Imaging Technologies V, 2023
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