@article{FrauenrathNiendorfKob2008, author = {Frauenrath, Tobias and Niendorf, Thoralf and Kob, Malte}, title = {Acoustic method for synchronization of Magnetic Resonance Imaging (MRI)}, series = {Acta Acustica}, volume = {94}, journal = {Acta Acustica}, number = {1}, publisher = {Hirzel}, address = {Stuttgart}, issn = {1861-9959}, doi = {10.3813/AAA.918017}, pages = {148 -- 155}, year = {2008}, abstract = {Magnetic Resonance Imaging (MRI) of moving organs requires synchronization with physiological motion or flow, which dictate the viable window for data acquisition. To meet this challenge, this study proposes an acoustic gating device (ACG) that employs acquisition and processing of acoustic signals for synchronization while providing MRI compatibility, immunity to interferences with electro-magnetic and acoustic fields and suitability for MRI at high magnetic field strengths. The applicability and robustness of the acoustic gating approach is examined in a pilot study, where it substitutes conventional ECG-gating for cardiovascular MR. The merits and limitations of the ACG approach are discussed. Implications for MR imaging in the presence of physiological motion are considered including synchronization with other structure- or motion borne sounds.}, language = {en} } @book{AnthrakidisJahnRitzetal.2013, author = {Anthrakidis, Anette and Jahn, Roland and Ritz, Thomas and Sch{\"o}ttler, Mirjam and Wallenborn, Ramona and Warmke, Gisela}, title = {Urbanes eCarSharing in einer vernetzten Gesellschaft}, edition = {1. Aufl.}, publisher = {Steinbeis-Edition}, address = {Stuttgart}, isbn = {978-3-943356-70-0}, pages = {148 S. : zahlr. Ill. und graph. Darst.}, year = {2013}, language = {de} } @inproceedings{FerreinBharatheeshaSchifferetal.2019, author = {Ferrein, Alexander and Bharatheesha, Mukunda and Schiffer, Stefan and Corbato, Carlos Hernandez}, title = {TRROS 2018 : Teaching Robotics with ROS Workshop at ERF 2018; Proceedings of the Workshop on Teaching Robotics with ROS (held at ERF 2018), co-located with European Robotics Forum 2018 (ERF 2018), Tampere, Finland, March 15th, 2018}, series = {CEUR Workshop Proceedings}, booktitle = {CEUR Workshop Proceedings}, number = {Vol-2329}, issn = {1613-0073}, pages = {68 Seiten}, year = {2019}, language = {en} } @inproceedings{FerreinSchollNeumannetal.2019, author = {Ferrein, Alexander and Scholl, Ingrid and Neumann, Tobias and Kr{\"u}ckel, Kai and Schiffer, Stefan}, title = {A system for continuous underground site mapping and exploration}, doi = {10.5772/intechopen.85859}, pages = {16 Seiten}, year = {2019}, language = {en} } @article{ClaerFerreinSchiffer2019, author = {Claer, Mario and Ferrein, Alexander and Schiffer, Stefan}, title = {Calibration of a Rotating or Revolving Platform with a LiDAR Sensor}, series = {Applied Sciences}, volume = {Volume 9}, journal = {Applied Sciences}, number = {issue 11, 2238}, publisher = {MDPI}, address = {Basel}, issn = {2076-3417}, doi = {10.3390/app9112238}, pages = {18 Seiten}, year = {2019}, language = {en} } @article{Heuermann1995, author = {Heuermann, Holger}, title = {Selbstkalibrierverfahren zur Systemfehlerkorrektur von Streuparametermessungen auf Halbleitersubstraten}, series = {Mikrowellen und Optronik : Kongreßunterlagen = Microwaves and optronics / MIOP '95, 8. Kongreßmesse f{\"u}r Hochfrequenztechnik, Messehalle Sindelfingen, 30. Mai - 1. Juni 1995. [Hrsg.: Network GmbH]}, journal = {Mikrowellen und Optronik : Kongreßunterlagen = Microwaves and optronics / MIOP '95, 8. Kongreßmesse f{\"u}r Hochfrequenztechnik, Messehalle Sindelfingen, 30. Mai - 1. Juni 1995. [Hrsg.: Network GmbH]}, address = {Hagenburg}, isbn = {3-924651-45-0}, pages = {23 -- 29}, year = {1995}, language = {de} } @article{HeuermannGraf1996, author = {Heuermann, Holger and Graf, W.}, title = {Vergleich mehrerer Naeherungsverfahren zur Berechnung des Wellenwiderstandes von Mikrostreifenleitungen mit experimentellen Ergebnissen}, series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)}, journal = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 39. 1996 (1996)}, year = {1996}, language = {de} } @article{HeuermannSchiek1994, author = {Heuermann, Holger and Schiek, Burkhard}, title = {Sichere on-wafer-Streuparameter-Messungen mit Selbstkalibrierverfahren}, series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 38. 1994 (1994)}, journal = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 38. 1994 (1994)}, pages = {611 -- 622}, year = {1994}, language = {de} } @incollection{AlhwarinFerreinScholl2014, author = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid}, title = {IR stereo kinect: improving depth images by combining structured light with IR stereo}, series = {PRICAI 2014: Trends in artificial intelligence : 13th Pacific Rim International Conference on Artificial Intelligence : Gold Coast, QLD, Australia, December 1-5, 2014 : proceedings. (Lecture notes in computer science ; vol. 8862)}, booktitle = {PRICAI 2014: Trends in artificial intelligence : 13th Pacific Rim International Conference on Artificial Intelligence : Gold Coast, QLD, Australia, December 1-5, 2014 : proceedings. (Lecture notes in computer science ; vol. 8862)}, publisher = {Springer}, address = {M{\"u}nchen}, isbn = {978-3-319-13559-5 (Print) ; 978-3-319-13560-1 (E-Book)}, doi = {10.1007/978-3-319-13560-1_33}, pages = {409 -- 421}, year = {2014}, abstract = {RGB-D sensors such as the Microsoft Kinect or the Asus Xtion are inexpensive 3D sensors. A depth image is computed by calculating the distortion of a known infrared light (IR) pattern which is projected into the scene. While these sensors are great devices they have some limitations. The distance they can measure is limited and they suffer from reflection problems on transparent, shiny, or very matte and absorbing objects. If more than one RGB-D camera is used the IR patterns interfere with each other. This results in a massive loss of depth information. In this paper, we present a simple and powerful method to overcome these problems. We propose a stereo RGB-D camera system which uses the pros of RGB-D cameras and combine them with the pros of stereo camera systems. The idea is to utilize the IR images of each two sensors as a stereo pair to generate a depth map. The IR patterns emitted by IR projectors are exploited here to enhance the dense stereo matching even if the observed objects or surfaces are texture-less or transparent. The resulting disparity map is then fused with the depth map offered by the RGB-D sensor to fill the regions and the holes that appear because of interference, or due to transparent or reflective objects. Our results show that the density of depth information is increased especially for transparent, shiny or matte objects.}, language = {en} } @inproceedings{HeuermannFinger2014, author = {Heuermann, Holger and Finger, Torsten}, title = {2.45 GHz Plasma Powered Spark Plug by Thermal and EM-Optimization}, pages = {30 Folien}, year = {2014}, language = {en} }