R
Rafael Wiemker
Researcher at Philips
Publications - 162
Citations - 2393
Rafael Wiemker is an academic researcher from Philips. The author has contributed to research in topics: Segmentation & Image processing. The author has an hindex of 24, co-authored 161 publications receiving 2263 citations. Previous affiliations of Rafael Wiemker include University of Hamburg.
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Journal ArticleDOI
Extraction of Airways From CT (EXACT'09)
Pechin Lo,Bram van Ginneken,Joseph M. Reinhardt,Tarunashree Yavarna,Pim A. de Jong,Benjamin Irving,Catalin Fetita,Margarete Ortner,Romulo Pinho,Jan Sijbers,Marco Feuerstein,Anna Fabijańska,Christian Bauer,Reinhard Beichel,Carlos S. Mendoza,Rafael Wiemker,Jaesung Lee,Anthony P. Reeves,Silvia Born,Oliver Weinheimer,Eva M. van Rikxoort,Juerg Tschirren,Ken Mori,Benjamin L. Odry,David P. Naidich,Ieneke J. C. Hartmann,Eric A. Hoffman,Mathias Prokop,Jesper Holst Pedersen,Marleen de Bruijne +29 more
TL;DR: A fusion scheme that obtained superior results is presented, demonstrating that there is complementary information provided by the different algorithms and there is still room for further improvements in airway segmentation algorithms.
Journal ArticleDOI
Multiscale contrast enhancement for radiographies: Laplacian pyramid versus fast wavelet transform
TL;DR: It is found that enhancement based on the FWT suffers from one serious drawback-the introduction of visible artifacts when large structures are enhanced strongly, by contrast, the Laplacian Pyramid allows a smooth enhancement of large structures, such that visible artifacts can be avoided.
Journal ArticleDOI
Aspects of computer-aided detection (CAD) and volumetry of pulmonary nodules using multislice CT.
TL;DR: Several studies have shown the feasibility and robustness of automated matching of corresponding nodule pairs between follow-up examinations, and tools for fast and accurate three-dimensional volume measurement of detected nodules are needed for diagnostic quality assurance.
Journal ArticleDOI
Tomographic separation of composite spectra. 2: The components of 29 UW Canis Majoris
TL;DR: In this paper, the authors analyzed the UV photospheric lines of 29 CMa, a 4.39 day period, double-lined O-type spectroscopic binary, and found that the mass ratio is q = 1.20 +/- 0.16 (secondary more massive) based on three independent arguments.
Proceedings ArticleDOI
Automatic extraction of the pulmonary artery tree from multi-slice CT data
TL;DR: An automated method is presented for the extraction of the pulmonary vessel tree from multi-slice CT data and a method for the separation of pulmonary arteries from veins is investigated.