Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Frank Dennerlein"'
Publikováno v:
Informatik aktuell ISBN: 9783658369316
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b344ebb27f427510b2f901e2600657d3
https://doi.org/10.1007/978-3-658-36932-3_11
https://doi.org/10.1007/978-3-658-36932-3_11
Publikováno v:
ICCV
We present a general method to estimate the fundamental matrix from a pair of images under perspective projection without the need for image point correspondences. Our method is particularly well-suited for transmission imaging, where state-of-the-ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b703ebbb240171b791a44cf8c9e85035
https://doi.org/10.1109/iccv.2019.00116
https://doi.org/10.1109/iccv.2019.00116
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.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a06205790bda13b662cbdd6136623390
https://pubmed.ncbi.nlm.nih.gov/31811794
https://pubmed.ncbi.nlm.nih.gov/31811794
Autor:
Dr. Frank Dennerlein, DE-Erlangen, Hongda Mao, US-Rochester, New York, Zhigang Peng, US-Malvern, Pennyslvania, Yoshihisa Shinagawa, US-Malvern, Pennsylvania, Yiqiang Zhan, US-Malvern, Pennsylvania, Dr. Xiang Sean Zhou, US-Malvern, Pennsylvania
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eda9e905ae5da74c7ed8c355b3976430
Publikováno v:
Physics in medicine and biology. 61(4)
Recent reports show that three-dimensional cone-beam (CB) imaging with a floor-mounted (or ceiling-mounted) C-arm system has become a valuable tool in interventional radiology. Currently, a circular short scan is used for data acquisition, which inev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec33c4c6f0530adad646cc3a47a2790b
https://pubmed.ncbi.nlm.nih.gov/26854687
https://pubmed.ncbi.nlm.nih.gov/26854687
Autor:
Frédéric Noo, Günter Lauritsch, Zhicong Yu, Frank Dennerlein, Joachim Hornegger, Adam Wunderlich
Publikováno v:
Physics in Medicine and Biology. 57:N237-N252
Mathematical phantoms are essential for the development and early-stage evaluation of image reconstruction algorithms in x-ray computed tomography (CT). This note offers tools for computer simulations using a two-dimensional (2D) phantom that models
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09da98805745522fcb022356956f66ba
https://doi.org/10.1088/0031-9155/57/13/n237
https://doi.org/10.1088/0031-9155/57/13/n237
Autor:
Frédéric Noo, Frank Dennerlein
Publikováno v:
Medical Physics. 38:S18-S24
Purpose: The authors investigate the CB artifact behavior of the factorization approach recently suggested for image reconstruction in circular cone-beam computed tomography. This investigation is carried out in a typical C-arm geometry and involves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38a011df4be438e13a01d4e35da5ff31
https://doi.org/10.1118/1.3577743
https://doi.org/10.1118/1.3577743
Autor:
Andreas Fieselmann, Yu Deuerling-Zheng, Jan Dr. Boese, Joachim Hornegger, Rebecca Fahrig, Frank Dennerlein
Publikováno v:
Physics in Medicine and Biology. 56:3701-3717
Filtered backprojection is the basis for many CT reconstruction tasks. It assumes constant attenuation values of the object during the acquisition of the projection data. Reconstruction artifacts can arise if this assumption is violated. For example,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c988d538c338f653e272bd21b993b942
https://doi.org/10.1088/0031-9155/56/12/016
https://doi.org/10.1088/0031-9155/56/12/016
Publikováno v:
International Journal of Computer Assisted Radiology and Surgery. 7:73-86
Developing an efficient tool for accurate three-dimensional imaging from projections measured with C-arm systems.A circle-plus-arc trajectory, which is complete and thus amenable to accurate reconstruction, is used. This trajectory is particularly at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54cbef46069167b2913f437eebe4c5cf
https://doi.org/10.1007/s11548-011-0607-z
https://doi.org/10.1007/s11548-011-0607-z
Publikováno v:
Medical Physics. 35:5910-5920
State-of-the-art filtered backprojection (FBP) algorithms often define the filtering operation to be performed along oblique filtering lines in the detector. A limited scan field of view leads to the truncation of those filtering lines, which causes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39645bdc47e7fff19d4f0d6165a9cd55
https://doi.org/10.1118/1.3002416
https://doi.org/10.1118/1.3002416