Zobrazeno 1 - 10
of 38
pro vyhledávání: '"André Aichert"'
Autor:
Mathias Unberath, Christian Riess, W Aichinger, K Mentl, Yan Xia, Joachim Hornegger, Anatol Maier, Martin Berger, André Aichert, Rebecca Fahrig
Publikováno v:
Physics in Medicine & Biology. 62:7181-7215
In cone-beam CT, involuntary patient motion and inaccurate or irreproducible scanner motion substantially degrades image quality. To avoid artifacts this motion needs to be estimated and compensated during image reconstruction. In previous work we sh
Autor:
Garry E. Gold, Rebecca Fahrig, Marc E. Levenston, Björn M. Eskofier, Serena Bonaretti, Andreas Maier, Wolfgang Mehringer, Jennifer Maier, Bastian Bier, André Aichert
Publikováno v:
2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC).
C-arm cone-beam CT (CBCT) systems are highly flexible regarding patient position and scan trajectory, which enables scanning a subject’s knee joint under weight-bearing conditions. This is of interest, since the knee joint has shown to have differe
Autor:
Frank Schebesch, Thomas Köhler, Joachim Hornegger, André Aichert, Andreas Maier, Xiaolin Huang
Publikováno v:
IEEE Transactions on Computational Imaging. 2:42-58
Multiframe super-resolution algorithms reconstruct high-resolution images by exploiting complementary information in multiple low-resolution frames. However, despite their success under ideal conditions, most existing methods rely on simplistic appro
Autor:
Andreas Maier, Jian Wang, Arnd Doerfler, Nicole Maass, André Aichert, Joachim Hornegger, Martin Berger
Publikováno v:
IEEE Transactions on Medical Imaging. 34:2205-2219
This paper presents the derivation of the Epipolar Consistency Conditions (ECC) between two X-ray images from the Beer-Lambert law of X-ray attenuation and the Epipolar Geometry of two pinhole cameras, using Grangeat's theorem. We motivate the use of
Publikováno v:
Medical physicsReferences. 46(12)
BACKGROUND The beam hardening effect is a typical source of artifacts in x-ray cone beam computed tomography (CBCT). It causes streaks in reconstructions and corrupted Hounsfield units toward the center of objects, widely known as cupping artifacts.
Publikováno v:
IEEE transactions on medical imaging. 37(9)
Rotational coronary angiography using C-arm angiography systems enables intra-procedural 3-D imaging that is considered beneficial for diagnostic assessment and interventional guidance. Despite previous efforts, rotational angiography was not yet suc
Publikováno v:
Bildverarbeitung für die Medizin 2018 ISBN: 9783662565360
Bildverarbeitung für die Medizin
Bildverarbeitung für die Medizin
Epipolar consistency (EC) is one of the simplest consistency conditions in cone-beam computed tomgraphy. It describes redundant line integrals between any two projection images. Its simplicity is an advantage for practical implementation and applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3eac7a46406803cf9e116bc750fa458
https://doi.org/10.1007/978-3-662-56537-7_93
https://doi.org/10.1007/978-3-662-56537-7_93
Autor:
Marc E. Levenston, Andreas Maier, Garry E. Gold, Martin Berger, Christopher Syben, André Aichert, Bastian Bier, Rebecca Fahrig
Publikováno v:
ISBI
Recently, C-arm cone-beam CT systems have been used to acquire knee joints under weight-bearing conditions. For this purpose, the C-arm acquires images on a horizontal trajectory around the standing patient, who shows involuntary motion. The current
Autor:
Marc E. Levenston, Garry E. Gold, Lina Felsner, Rebecca Fahrig, Andreas Maier, Mathias Unberath, André Aichert, Bastian Bier
Publikováno v:
Informatik aktuell ISBN: 9783662543443
Bildverarbeitung für die Medizin
Bildverarbeitung für die Medizin
Recent C-arm CT systems allow for the examination of a patient’s knees under weight-bearing conditions. The standing patient tends to show involuntary motion, which introduces motion artifacts in the reconstruction. The state-of-the-art motion corr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88ba05ce715403530b9461c57ab6bc0e
https://doi.org/10.1007/978-3-662-54345-0_47
https://doi.org/10.1007/978-3-662-54345-0_47
Publikováno v:
Informatik aktuell ISBN: 9783662543443
Bildverarbeitung für die Medizin
Bildverarbeitung für die Medizin
Rotational coronary angiography allows for volumetric imaging but requires cardiac and respiratory motion management to achieve meaningful reconstructions. Novel respiratory motion compensation algorithms based on data consistency conditions are appl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::830b9e82700ab21fa620cbb197968074
https://doi.org/10.1007/978-3-662-54345-0_28
https://doi.org/10.1007/978-3-662-54345-0_28