Results 31 to 40 of about 1,511 (175)

Optimal sampling patterns for Zernike polynomials [PDF]

Applied Mathematics and Computation, 2016
A pattern of interpolation nodes on the disk is studied, for which the interpolation problem is theoretically unisolvent, and which renders a minimal numerical condition for the collocation matrix when the standard basis of Zernike polynomials is used.
Darío Ramos-López, Miguel Ángel Sánchez Granero, Manuel Fernández-Martínez, Andrei Martínez-Finkelshtein   +3 more
openaire   +4 more sources

Fourier–Zernike Series of Convolutions on Disks

Mathematics, 2018
This paper presents a systematic study of the analytic aspects of Fourier⁻Zernike series of convolutions of functions supported on disks. We then investigate different aspects of the presented theory in the cases of zero-padded functions.
Arash Ghaani Farashahi, Gregory S. Chirikjian   +1 more
doaj   +1 more source

Hardware‐Attentive Programmable Fourier Ptychography Enables Task‐Adaptive Label‐Free Virtual Staining

Advanced Science, EarlyView.
Task‐adaptive programmable optics enables label‐free virtual staining through optical‐attention‐guided acquisition and reconstruction. By optimizing wavelength, illumination angle, exposure time, and imaging depth, the framework learns task‐relevant optical measurements, generating clinically interpretable virtual stains with improved fidelity, non ...
Tianyue He, Wenyi Jing, Le Zhang, Qican Zhang, Tingdong Kou, Xin He, Yan Qiu, Yang Lu, Jian Cui, Yongfu Wen, Zhenrong Zheng, Hongying Zhang, Dayong Jin, Junfei Shen   +13 more
wiley   +1 more source

Orthonormal aberration decomposition for circular aperture and rectangular field with extension to multiple-aperture systems

AIP Advances
A new set of orthogonal polynomials and the traditional Zernike polynomials are combined to construct the wavefront of the sparse aperture (SA) optical system.
Baohua Chen, Quanying Wu, Junliu Fan, Songhongkang Yang, Zhixiang Li, Donghui Shen   +5 more
doaj   +1 more source

Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts

Laser &Photonics Reviews, EarlyView.
Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman, Quimey Pears Stefano, Angel Cifuentes, Jason Francis, Iker Gómez‐Viloria, Ruben Pellicer‐Guridi, Miguel Varga, Gabriel Molina‐Terriza   +7 more
wiley   +1 more source

Macrophage Phenotype Detection Methodology on Textured Surfaces via Nuclear Morphology Using Machine Learning

Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.
A novel machine learning approach classifies macrophage phenotypes with up to 98% accuracy using only nuclear morphology from DAPI‐stained images. Bypassing traditional surface markers, the method proves robust even on complex textured biomaterial surfaces. It offers a simpler, faster alternative for studying macrophage behavior in various experimental
Oleh Mezhenskyi, Kateryna Andriienkova, Tetyana Goldanova, Ezgi Antmen, Thibaut Soubrie, Nihal Engin Vrana   +5 more
wiley   +1 more source

Computation of Hopkins’ 3-circle integrals using Zernike expansions [PDF]

Journal of the European Optical Society-Rapid Publications, 2011
The integrals occurring in optical diffraction theory under conditions of partial coherence have the form of an incomplete autocorrelation integral of the pupil function of the optical system.
Janssen A. J. E. M.
doaj   +1 more source

Full Vectorial Field Sensing Using Liquid Crystal Droplet Arrays

Advanced Materials, Volume 38, Issue 39, 13 July 2026.
An inkjet‐printed liquid crystal droplet array enables compact, low‐cost, single‐shot sensing of the full vectorial light field. Within a single platform, it simultaneously retrieves intensity, polarization, and phase, while dual‐wavelength operation highlights its capability for multi‐wavelength optical field characterization. ABSTRACT Determining the
Xuke Qiu, Jinge Guo, Jiahe Cui, Runchen Zhang, Zimo Zhao, Yifei Ma, Waqas Kamal, Steve J. Elston, Alfonso A. Castrejón‐pita, Stephen M. Morris, Chao He   +10 more
wiley   +1 more source

Noise Resilient Real‐Time Phase Imaging via Undetected Light

Advanced Quantum Technologies, Volume 9, Issue 7, July 2026.
Quantum imaging with undetected light enables decoupled illumination and detection, but real‐time operation under strong noise conditions remains challenging. By combining nonlinear interferometry with off‐axis holography, this work demonstrates real‐time amplitude and phase imaging at up to 4 Hz, even when noise exceeds the signal by an order of ...
Josué R. León‐Torres, Patrick Hendra, Yugant Mukeshbhai Hadiyal, Christopher Spiess, Fabian Steinlechner, Frank Setzpfandt, Markus Gräfe, Valerio Flavio Gili   +7 more
wiley   +1 more source

Thermoresponsive Complex Coacervates as Advanced Carriers for Cell‐Laden Liquid‐Core Capsules for Biomedical Applications

Small, Volume 22, Issue 32, 8 June 2026.
A thermoresponsive complex coacervate is engineered to transport liquid‐core capsules loaded with human adipose‐derived stem cells, forming modular, hierarchically organized tissue‐forming units. This injectable platform enables precise spatial control while maintaining high cell viability, offering a versatile and bioinspired strategy for minimally ...
Luís P. G. Monteiro, Mariana Carreira, Julien Es Sayed, Marleen Kamperman, João M. M. Rodrigues, João Mano   +5 more
wiley   +1 more source