Results 31 to 40 of about 4,040 (262)

All-optical image classification through unknown random diffusers using a single-pixel diffractive network

open access: yesLight: Science & Applications, 2023
Classification of an object behind a random and unknown scattering medium sets a challenging task for computational imaging and machine vision fields.
Bijie Bai   +6 more
doaj   +1 more source

Autoindexing diffraction images withiMosflm [PDF]

open access: yesActa Crystallographica Section D Biological Crystallography, 2013
An overview of autoindexing diffraction images based on one-dimensional fast Fourier transforms is presented. The implementation of the algorithm in theMosflm/iMosflmprogram suite is described with a discussion of practical issues that may arise and ways of assessing the success or failure of the procedure.
Powell, Harold R.   +2 more
openaire   +2 more sources

Potential of Attosecond Coherent Diffractive Imaging [PDF]

open access: yesPhysical Review Letters, 2020
14 pages, 4 ...
Arjun Rana   +7 more
openaire   +3 more sources

Optimized Iterative Algorithm to Generate Computer-Generated Holograms Based on the Intermediate Angular-Spectrum Method

open access: yesIEEE Photonics Journal, 2022
The intermediate angular-spectrum method is an efficient way to calculate computer-generated holograms without zero-padding and cropping operation. In this paper, we present an optimized iteration algorithm to improve the reconstruction quality in the ...
Dapu Pi, Juan Liu, Yongtian Wang
doaj   +1 more source

A Multi-Plane Augmented Reality Head-Up Display System Based on Volume Holographic Optical Elements With Large Area

open access: yesIEEE Photonics Journal, 2021
The traditional head-up display (HUD) system has the disadvantages of a small area and a single display plane, here we propose and design an augmented reality (AR) HUD system with multi-plane, large area, high diffraction efficiency and a single picture ...
Zhenlv Lv, Juan Liu, Liangfa Xu
doaj   +1 more source

Diffraction Images [PDF]

open access: yesProceedings of the Physical Society of London, 1911
n ...
openaire   +2 more sources

Accelerated Image Reconstruction for Nonlinear Diffractive Imaging [PDF]

open access: yes2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018
The problem of reconstructing an object from the measurements of the light it scatters is common in numerous imaging applications. While the most popular formulations of the problem are based on linearizing the object-light relationship, there is an increased interest in considering nonlinear formulations that can account for multiple light scattering.
Yanting Ma   +4 more
openaire   +2 more sources

Hybrid Space Calibrated 3D Network of Diffractive Hyperspectral Optical Imaging Sensor

open access: yesSensors
Diffractive multispectral optical imaging plays an essential role in optical sensing, which typically suffers from the image blurring problem caused by the spatially variant point spread function.
Hao Fan   +7 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

The advantages of metalenses over diffractive lenses

open access: yesNature Communications, 2020
Optical elements play a crucial role in many modern systems, from cellphones to missiles. The miniaturization trend poses a challenge to optics, since classical lenses and mirrors tend to be bulky.
Jacob Engelberg, Uriel Levy
doaj   +1 more source

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