Results 41 to 50 of about 781,342 (287)

Joint Image Reconstruction and Super-Resolution for Accelerated Magnetic Resonance Imaging

open access: yesBioengineering, 2023
Magnetic resonance (MR) image reconstruction and super-resolution are two prominent techniques to restore high-quality images from undersampled or low-resolution k-space data to accelerate MR imaging. Combining undersampled and low-resolution acquisition
Wei Xu   +6 more
doaj   +1 more source

Filtering in SPECT Image Reconstruction [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2011
Single photon emission computed tomography (SPECT) imaging is widely implemented in nuclear medicine as its clinical role in the diagnosis and management of several diseases is, many times, very helpful (e.g., myocardium perfusion imaging). The quality of SPECT images are degraded by several factors such as noise because of the limited number of counts,
Maria Lyra, Agapi Ploussi
openaire   +4 more sources

A Benchmark Dataset and Deep Learning-Based Image Reconstruction for Electrical Capacitance Tomography

open access: yesSensors, 2018
Electrical Capacitance Tomography (ECT) image reconstruction has developed for decades and made great achievements, but there is still a need to find a new theoretical framework to make it better and faster.
Jin Zheng, Jinku Li, Yi Li, Lihui Peng
doaj   +1 more source

High numerical aperture holographic microscopy reconstruction with extended z range [PDF]

open access: yes, 2015
An holographic microscopy reconstruction method compatible with high numerical aperture microscope objective (MO) up to NA=1.4 is proposed. After off axis and reference field curvature corrections, and after selection of the +1 grating order holographic ...
Donnarumma, Dario   +3 more
core   +4 more sources

Simulation of 3D Image Reconstruction in Rigid body Motion

open access: yesMATEC Web of Conferences, 2018
3D image reconstruction under rigid body motion is affected by rigid body motion and visual displacement factors, which leads to low quality of 3D image reconstruction and more noise, in order to improve the quality of 3D image reconstruction of rigid ...
Chen Huihong, Li Shiming
doaj   +1 more source

Investigation of iterative image reconstruction in three-dimensional optoacoustic tomography

open access: yes, 2012
Iterative image reconstruction algorithms for optoacoustic tomography (OAT), also known as photoacoustic tomography, have the ability to improve image quality over analytic algorithms due to their ability to incorporate accurate models of the imaging ...
Alexander A Oraevsky   +9 more
core   +1 more source

Improved image reconstruction based on ultrasonic transmitted wave computerized tomography on concrete

open access: yesEURASIP Journal on Image and Video Processing, 2018
Considering the non-uniqueness and instability of concrete defect detection in construction engineering, ultrasonic time of flight data and maximum likelihood expectation maximization algorithm were proposed to improve the readability of the ultrasonic ...
Honghui Fan, Hongjin Zhu
doaj   +1 more source

A Review of GAN-Based Super-Resolution Reconstruction for Optical Remote Sensing Images

open access: yesRemote Sensing, 2023
High-resolution images have a wide range of applications in image compression, remote sensing, medical imaging, public safety, and other fields. The primary objective of super-resolution reconstruction of images is to reconstruct a given low-resolution ...
Xuan Wang   +3 more
doaj   +1 more source

A Monte Carlo Template based analysis for Air-Cherenkov Arrays [PDF]

open access: yes, 2014
We present a high-performance event reconstruction algorithm: an Image Pixel-wise fit for Atmospheric Cherenkov Telescopes (ImPACT). The reconstruction algorithm is based around the likelihood fitting of camera pixel amplitudes to an expected image ...
Hinton, J. A., Parsons, R. D.
core   +2 more sources

SOWAT: Speckle Observations With Alleviated Turbulence

open access: yes, 2019
Adaptive optics (AO) systems and image reconstruction algorithms are indispensable tools when it comes to high-precision astrometry. In this paper, we analyze the potential of combining both techniques, i.e.
Bosco, Felix   +2 more
core   +1 more source

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