Academic literature on the topic 'Segmentierungsverfahren'
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Journal articles on the topic "Segmentierungsverfahren"
Kleyer, Arnd, Frank Roemer, Georg Schett, and Bernhard Manger. "Differenzialdiagnose Rückenschmerzen mit Entzündungsparametern: Fallvorstellung: Manifestation einer CPPD als Crowned Dens Syndrom mit Befall peripherer Gelenke." Aktuelle Rheumatologie 46, no. 01 (February 2021): 76–79. http://dx.doi.org/10.1055/a-1327-1424.
Full textSchmitt, T., L. Oehme, M. Andreeff, G. D. Foe Owono, W. G. Franke, and R. Freyer. "3D-Segmentierungsverfahren zur Volumenquantifizierung in ECT-Daten." Biomedizinische Technik/Biomedical Engineering, October 23, 2009, 70–71. http://dx.doi.org/10.1515/bmte.1998.43.s1.70.
Full textPriese, L., F. Schmitt, P. Sturm, H. Wang, R. Matern, and R. Wickenhöfer. "Analyse von MRT-Gehirnaufnahmen mittels des 3D-CSC Segmentierungsverfahrens." RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 179, S 1 (2007). http://dx.doi.org/10.1055/s-2007-977280.
Full textDissertations / Theses on the topic "Segmentierungsverfahren"
Deyle, Hanno-G. "Der Einsatz moderner Segmentierungsverfahren zur Unterstützung einer differenzierten Kundenbindungspolitik : konzeptionelle und methodische Aspekte einer Kundenbindungssegmentierung /." Nürnberg : Wiss. Ges. für Innovatives Marketing, 2007. http://d-nb.info/986102814/04.
Full textRossmann, Dominik. "Freizeitparks und strategisches Marketing eine Untersuchung zur Positionierung moderner Freizeitparks in der strategischen Marketingplanung unter besonderer Berücksichtigung freizeit- und tourismuswirtschaftlichen Konsumverhaltens und darauf basierenden Segmentierungsverfahren." München Ulysses Management, 2009. http://d-nb.info/992586852/04.
Full textPlinke, Burkhard. "Größenanalyse an nicht separierten Holzpartikeln mit regionenbildenden Algorithmen am Beispiel von OSB-Strands." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-98518.
Full textThe strength of wood-based materials made of several layers of big and oriented particles like OSB (oriented strand board) is a superposition of the strengths of the layers according to the orientation of the particles and depending from their size distribution. It would be desirable to measure particle geometry and orientation close to the production process, e.g. with a “view onto the mat”. Currently, continuous on-line measurements of the particle geometry are not possible, while measurements of separated particles would be too costly and time-consuming. Before measuring particle shapes they have to be reconstructed in a multi-stage procedure which considers an image scene with strands as “gray value mountains”. Segmentation using a watershed algorithm is not sufficient. Also a two-step edge detector according to Canny does not yield closed object shapes. A multi-step procedure based on threshold decomposition and recombination however is successful: The gray values in the image are transformed into a reduced and uniformly distributed set of threshold levels. The local morphological gradients between these levels are used to re-build the original particle shapes by adding the threshold levels. Only shapes with a plausible size corresponding to real particle shapes are included in order to suppress noise. The result of the reconstruction from threshold levels is then matched with the result of the strong edges in the original image, which had been detected using a Canny operator, and is finally cleaned with morphological operators. This extended threshold analysis produces sufficiently segmented images with object shapes corresponding extensively to the particle shapes. Standard algorithms are used to measure geometric features of the objects. An approximation of particle shapes with ellipses of equal moments of inertia is useful. Remaining incorrectly detected objects are removed by form factors and size intervals. Size distributions for the parameters length and width are presented and characterized as density distribution histograms, weighted by the object area and linearly scaled (q2 distribution), as well as the cumulated distribution and different quantiles. A demonstration software “SizeBulk” based on MATLAB has been developed to demonstrate the computation and the interaction of algorithms. Image sequences can be processed and different variations of image preprocessing and parametrization can be tested. However, the detection procedure yields complete shapes only for those particles in the top layer. Objects in lower layers are partially hidden and cannot be measured completely. Artificial images with separated and with overlaid objects with a known size distribution were generated to study this effect. It was shown that size distributions are influenced by this covering effect and also by the strand orientation, but that at least the modes of the most important size parameters length and width remain in evidence. Artificial images and several samples with OSB strands from industrial and laboratory production were used for testing. They were measured as single strands as well as arrangements similar to an OSB mat. For real strands, the same covering effects to the size distributions revealed as in the simulation. Under stable image acquisition conditions and using similar processing parameters the characteristics of these samples can well be measured, and changes in the size distributions are definitely due to the geometric properties of the strands. The suitability of the processing procedure for the characterization of strand size distributions could also be confirmed for images acquired from OSB mats in a production line. Moreover, it could be shown that the extended threshold analysis is also suitable to evaluate images of particle board surfaces and to draw conclusions about the size distribution of the top layer particles. Therefore, the method presented here is a novel possibility to measure size distributions of OSB strands through the evaluation of partial gray value images of the mat surface. In principle, this method is suitable to be transferred to an industrial application. So far, methods that address the problem of detecting trends of the strand size distribution were not known, and this work shows new perspectives for process monitoring
Lechsel, Gerhard [Verfasser]. "Interaktive Segmentierungsverfahren im Rahmen der adaptiven Strahlentherapieplanung / Gerhard Lechsel." 2007. http://d-nb.info/98515988X/34.
Full textGerhards, Karl. "Auswirkung des Rauschens und Rauschen vermindernder Maßnahmen auf ein fernerkundliches Segmentierungsverfahren." Doctoral thesis, 2006. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2006080215.
Full textGerhards, Karl [Verfasser]. "Auswirkung des Rauschens und Rauschen vermindernder Maßnahmen auf ein fernerkundliches Segmentierungsverfahren / Karl Gerhards." 2006. http://d-nb.info/980739047/34.
Full textFriedrich, Gregor. "Evaluierung verschiedener semi-automatischer Segmentierungsverfahren zur Bestimmung des metabolischen Tumorvolumens im Mediastinum beim pädiatrischen Hodgkin-Lymphom." 2019. https://ul.qucosa.de/id/qucosa%3A71391.
Full textBook chapters on the topic "Segmentierungsverfahren"
Hastenteufel, M., C. Cárdenas, Ch Giess, G. Glombitza, P. Hassenpflug, and H. P. Meinzer. "Evaluierung von interaktiven, texturanalytischen Segmentierungsverfahren." In Bildverarbeitung für die Medizin 2001, 232–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56714-8_42.
Full textMester, Rudolf, and Uwe Franke. "Ein regionenorientiertes Segmentierungsverfahren für texturierte Bildvorlagen." In ASST ’87 6. Aachener Symposium für Signaltheorie, 135–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-73015-3_25.
Full textNitzl, Franz, and Josef Pauli. "Steuerung von Segmentierungsverfahren in Bildfolgen menschlicher Bewegungen." In Mustererkennung 1991, 521–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-08896-8_70.
Full textKeferstein, Claus P. "Segmentierungsverfahren zur Extraktion Geometrischer Grössen aus Bildern." In Geometrieprüfung in der Fertigungsmeßtechnik mit bildverarbeitenden Systemen, 38–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-662-07445-9_4.
Full textBraun, Jürgen, Marius Laumans, Klaus Haarbeck, and Thomas Tolxdorff. "Kantenerhaltende Glättung medizinischer Bilddaten zur Optimierung automatischer Segmentierungsverfahren." In Informatik aktuell, 170–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18536-6_35.
Full textMottl-Link, Sibylle, Waldemar Hosch, Ivo Wolf, Mark Hastenteufel, Tina Schwarz, Hans-Peter Meinzer, Siegfried Hagl, and Raffaele De Simone. "Klinische Anwendung verschiedener Segmentierungsverfahren in der Live-3D Echokardiographie." In Bildverarbeitung für die Medizin 2005, 128–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-26431-0_27.
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