Results 41 to 50 of about 1,598,929 (274)
Monocular metasurface camera for passive single-shot 4D imaging
Nature Communications, 2023 The authors present a monocular camera equipped with a single-layer metalens for passive single-shot 4D imaging. It can simultaneously perform high-accuracy depth sensing and highfidelity polarization imaging over an extended depth of field.
Zicheng Shen +5 more
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Depth-of-Field-Extended Plenoptic Camera Based on Tunable Multi-Focus Liquid-Crystal Microlens Array
Sensors, 2020 Plenoptic cameras have received a wide range of research interest because it can record the 4D plenoptic function or radiance including the radiation power and ray direction.
Mingce Chen +7 more
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Freeform optics for variable extended depth of field imaging
Optics Express, 2021 Imaging depth of field is shallow in applications with high magnification and high numerical aperture, such as microscopy, resulting in images with in- and out-of-focus regions. Therefore, methods to extend depth of field are of particular interest. Researchers have previously shown the advantages of using freeform components to extend depth of field ...
Sara Moein, Thomas J. Suleski
openaire +2 more sources
All-in-Focus Sweep Imaging Based on Wigner Distribution Function
IEEE Access, 2018 To extend the depth of field, the all-in-focus image can be achieved via the computational imaging method by designing the data acquisition process under the condition of maintaining the signal-to-noise ratio.
Chang Liu, Shan Gao, Xing Zhao, Jun Qiu
doaj +1 more source
Multispectral Extended Depth-of-Field Imaging via Stochastic Wavefront Optimization
IEEE Open Journal of Signal ProcessingExtended depth-of-field (EDoF) is a desirable attribute for imaging systems where all features in the scene are in focus despite their relative distance.
Exequiel Oliva +3 more
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Distribution of the complex amplitude and intensity in a 3D scattering pattern formed by the optical system for an on-axis point object [PDF]
Компьютерная оптика, 2018 A quantitative evaluation of the depth of field of optical systems is given. Results of the calculation of the distribution of the complex amplitude and intensity in a three-dimensional scattering pattern formed by the optical system for an on-axis point
Sergey Koreshev +3 more
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Rigorous electromagnetic analysis of a microcylindrical axilens with long focal depth and high transverse resolution [PDF]
, 2001 We first present nonparaxial designs for a microcylindrical axilens with different long focal depths and rigorously analyze electromagnetic field distributions of the axilens using integral equations and the boundary-element method.
Dong, BZ +4 more
core +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Penetration of non-uniform electromagnetic field into conducting body
Electrical engineering & Electromechanics, 2021 The study is based on the exact analytical solution for the general conjugation problem of three-dimensional quasi-stationary field at a flat interface between dielectric and conducting media.
Yu. M. Vasetsky
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Molecular Oncology, EarlyView.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
wiley +1 more source