Results 71 to 80 of about 264,517 (319)

On Iterative Algorithms for Quantitative Photoacoustic Tomography in the Radiative Transport Regime

open access: yes, 2017
In this paper, we describe the numerical reconstruction method for quantitative photoacoustic tomography (QPAT) based on the radiative transfer equation (RTE), which models light propagation more accurately than diffusion approximation (DA).
Wang, Chao, Zhou, Tie
core   +2 more sources

Quality evaluation of image‐based iterative reconstruction for CT: Comparison with hybrid iterative reconstruction [PDF]

open access: yesJournal of Applied Clinical Medical Physics, 2019
AbstractThe purpose of this study is to evaluate the physical image quality of a commercially available image‐based iterative reconstruction (IIR) system for two object contrasts to resemble a soft tissue (60 HU) and an enhanced vessel (270 HU), and compare the results with those of filtered back projection (FBP) and iterative reconstruction (IR).
Kawashima, Hiroki   +5 more
openaire   +2 more sources

Iterative Online 3D Reconstruction from RGB Images

open access: yesSensors, 2022
3D reconstruction is the computer vision task of reconstructing the 3D shape of an object from multiple 2D images. Most existing algorithms for this task are designed for offline settings, producing a single reconstruction from a batch of images taken from diverse viewpoints.
Thorsten Cardoen   +2 more
openaire   +3 more sources

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Observer Sensitivity for Detection of Pulmonary Nodules in Ultra-Low Dose Computed Tomography Protocols Using a Third-Generation Dual-Source CT with Ultra-High Pitch—A Phantom Study

open access: yesAnatomia, 2023
This study evaluates ultra-low-dose computed tomography (ULDCT) protocols concerning the detectability of pulmonary nodules. The influence of tube current settings, kernels, strength levels of third-generation iterative reconstruction algorithms, and ...
Natascha Leitzig   +4 more
doaj   +1 more source

An Iterative Procedure for Combining the Advantages of a Multi-Frequency and Multi-Resolution Inversion Algorithm [PDF]

open access: yes, 2011
Starting from the iterative multi ]scaling approach previously studied for monochromatic illuminations, two multi ]resolution strategies for dealing with multi ]frequency inverse scattering experiments have been developed. The first procedure is based on
Donelli, Massimo   +3 more
core  

Biosupercapacitors for Human‐Powered Electronics

open access: yesAdvanced Functional Materials, EarlyView.
Biosupercapacitors are emerging as biocompatible and integrative energy systems for next‐generation bioelectronics, offering rapid charge–discharge performance and mechanical adaptability. This review systematically categorizes their applications from external to organ‐level systems and highlights their multifunctional roles in sensing, actuation, and ...
Suhyeon Kim   +7 more
wiley   +1 more source

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

open access: yesAdvanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker   +5 more
wiley   +1 more source

A robust iterative reconstruction technique for deflectometry [PDF]

open access: yesNanotechnology and Precision Engineering
We present an iterative surface-reconstruction approach based on vision rays that achieves not only higher reconstruction accuracy than the Delaunay/Möller–Trumbore method but also a significant reduction in computation time.
Yingmo Wang, Fengzhou Fang
doaj   +1 more source

Ultra Low Dose CT Pulmonary Angiography with Iterative Reconstruction. [PDF]

open access: yesPLoS ONE, 2016
OBJECTIVE:Evaluation of a new iterative reconstruction algorithm (IMR) for detection/rule-out of pulmonary embolism (PE) in ultra-low dose computed tomography pulmonary angiography (CTPA).
Andreas Sauter   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy