Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Aicha Allag"'
Publikováno v:
MATEC Web of Conferences, Vol 348, p 01011 (2021)
Computed tomography (CT) aims to reconstruct an internal distribution of an object based on projection measurements. In the case of a limited number of projections, the reconstruction problem becomes significantly ill-posed. Practically, reconstructi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61a273fba21b46e6efc19459a2bbe16a
https://doi.org/10.1016/j.matpr.2021.11.552
https://doi.org/10.1016/j.matpr.2021.11.552
Publikováno v:
2023 International Conference on Advances in Electronics, Control and Communication Systems (ICAECCS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb801c3d3641a9b6701e6a239e751925
https://doi.org/10.1109/icaeccs56710.2023.10105038
https://doi.org/10.1109/icaeccs56710.2023.10105038
Publikováno v:
Russian Journal of Nondestructive Testing. 55:542-548
In many medicine and industry applications, a precise X-ray tomography reconstruction of the internal objects structure is of great importance for reliable interpretation data. The tomography allows obtaining a spatial distribution of the internal ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43c6454c59d559312619f0324d4991d2
https://doi.org/10.1134/s1061830919070027
https://doi.org/10.1134/s1061830919070027
Publikováno v:
Procedia Computer Science. 127:236-245
In this paper, sparse regularization methods are applied to X-rays tomographic reconstruction 2D images. These methods are based on total variation algorithm associated to L1norm and proximal functions. The inverse problem can therefore be regularize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeb685c39feb62bd442c6e1def01de58
https://doi.org/10.1016/j.procs.2018.01.119
https://doi.org/10.1016/j.procs.2018.01.119
Publikováno v:
2019 International Conference on Advanced Electrical Engineering (ICAEE).
In this work, the Maximum A Posteriori (MAP) method, is used for defect detection in aluminium by determining the reflectivity sequence of the ultrasonic signal. In numerical simulations, the MAP method is tested under two conditions, when a priori k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ea962a3f126a5dba28cdfa2d1373a9d
https://doi.org/10.1109/icaee47123.2019.9014840
https://doi.org/10.1109/icaee47123.2019.9014840
Publikováno v:
2019 International Conference on Advanced Electrical Engineering (ICAEE).
Restoring degraded images is a problem that is part of the digital image processing domain. When acquiring images, phenomena such as noise, blur and bad quality are always present. Our goal is to reduce noise in the case of radiographic images applie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2085edd4989ab4e1212c77d2751d06b
https://doi.org/10.1109/icaee47123.2019.9014675
https://doi.org/10.1109/icaee47123.2019.9014675
Publikováno v:
2019 International Conference on Advanced Electrical Engineering (ICAEE).
This work aims to study and implement a reconstruction method of X-ray tomography able to reconstruct the image from insufficent number of projections. We proposed a new algorithm using the sinogram interpolation. The sinogram restoration is based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0cf696fd3cab7a05764e16d4d2699ec
https://doi.org/10.1109/icaee47123.2019.9015130
https://doi.org/10.1109/icaee47123.2019.9015130
Publikováno v:
2017 5th International Conference on Electrical Engineering - Boumerdes (ICEE-B).
In this paper, an effective method for minimizing a convex criterion is proposed to allow its application in solving inverse problems related to the X-ray tomography. Proximal algorithms associated to total variation regularization are used knowing t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b1dca26456471a538f71a017f942be7
https://doi.org/10.1109/icee-b.2017.8191976
https://doi.org/10.1109/icee-b.2017.8191976
Publikováno v:
Journal of Non-Crystalline Solids. 352:1184-1187
We report a numerical simulation of the photocurrent decay (PCD), from the steady state, in two different structure configurations based on the a-Si:H. The standard DOS of the a-Si:H is used. The high-electric-field PCD is considered in a structure c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af114be0f65092609320c39739fe27d8
https://doi.org/10.1016/j.jnoncrysol.2005.10.045
https://doi.org/10.1016/j.jnoncrysol.2005.10.045