@misc{GedatFechnerFiebelkornetal.2017, author = {Gedat, Egbert and Fechner, Pascal and Fiebelkorn, Richard and Vandenhouten, Ralf}, title = {Szenenanalyse und Unterscheidung der Skelette mehrerer Menschen in digitalen Bildern mit Graphentheorie durch eine k-k{\"u}rzeste-disjunkte-Wege-Suche}, series = {Wissenschaftliche Beitr{\"a}ge 2017}, volume = {21}, journal = {Wissenschaftliche Beitr{\"a}ge 2017}, issn = {0949-8214}, doi = {10.15771/0949-8214_2017_4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9394}, pages = {31 -- 35}, year = {2017}, abstract = {Das Erkennen von Personen auf Fotos und in Videos geschieht in aktuellen Klassifizierungsverfahren durch die Zuordnung eines K{\"o}perteils zu jedem Pixel. Anschließend werden die gefundenen K{\"o}rperteile zu Skeletten zusammengefasst. Im Falle mehrerer abgebildeter Personen ergibt sich das Problem der Zuordnung der K{\"o}rperteile zu den verschiedenen Skeletten. Es wurde in dieser Arbeit ein auf dem Suurballe-Algorithmus basierendes graphentheoretisches Verfahren entwickelt, das diese Aufgabe l{\"o}st. Aufbauend auf im Wesentlichen abstandsabh{\"a}ngigen Kantengewichten wird eine k-k{\"u}rzeste-disjunkte-Wege-Suche durchgef{\"u}hrt. Unter Einbezug von m{\"o}glicherweise fehlenden K{\"o}rperteilen durch Unsichtbar-Knoten und automatisches Aussortieren zu viel gefundener K{\"o}rperteile werden so die k-optimalen Skelette gefunden. Die Methode wurde an idealisierten computergenerierten Bildern mit einer Trefferquote von 100 \% gefundener Personen getestet. Ein Test mit realen Bilddaten lieferte eine Trefferquote von 71,7 \%.}, language = {de} } @misc{VandenhoutenBehrensSelz2007, author = {Vandenhouten, Ralf and Behrens, Thomas and Selz, Miriam}, title = {Datenerfassung und Visualisierung von Vitalparametern und Prim{\"a}rsignalen auf dem Computer und auf mobilen Endger{\"a}ten}, series = {Wissenschaftliche Beitr{\"a}ge 2007}, volume = {12}, journal = {Wissenschaftliche Beitr{\"a}ge 2007}, issn = {0949-8214}, doi = {10.15771/0949-8214_2007_1_11}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus-555}, pages = {72 -- 77}, year = {2007}, abstract = {In Kliniken besteht der Bedarf nach einer l{\"u}ckenlosen Aufzeichnung der Vitalparameter (z. B. Herzfrequenz, Blutdruck) und Prim{\"a}rsignale (z. B. EKG). Besonders in der Notfallmedizin ist eine st{\"a}ndige Patienten{\"u}berwachung lebensnotwendig. Zudem dienen die erfassten Daten der aktuellen Patienten-Dokumentation, aber auch zur Analyse im Bereich der Forschung und f{\"u}r Studien. F{\"u}r diesen Zweck wurde das Telematik-System »Multi-Patientenmonitoring« entwickelt. Dieses System dient der Datenerfassung, Signalvisualisierung und Echtzeit{\"u}bertragung von Vitalparametern an beliebig viele PCs und mobile Ger{\"a}te des Krankenhausnetzwerkes. Motiviert durch das Universit{\"a}tsklinikum T{\"u}bingen wurde das Projekt von der Wildauer Firma ixellence initiiert und in interdisziplin{\"a}rer Zusammenarbeit mit medizinischen Einrichtungen, dem Fachgebiet Telematik an der TFH Wildau und der Philips Medizin-Systeme GmbH realisiert.}, language = {de} } @misc{KistelVandenhouten2013, author = {Kistel, Thomas and Vandenhouten, Ralf}, title = {A metamodel-based ASN.1 editor and compiler for the implementation of communication protocols}, series = {Wissenschaftliche Beitr{\"a}ge 2013}, volume = {17}, journal = {Wissenschaftliche Beitr{\"a}ge 2013}, issn = {0949-8214}, doi = {10.15771/0949-8214_2013_1_11}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-3035}, pages = {61 -- 66}, year = {2013}, abstract = {In der Software-Industrie sind viele metamodell-basierte Werkzeuge entwickelt worden, um die Erstellung von Programmiersprachen und insbesondere dom{\"a}nenspezifischen Sprachen (DSL ) zu unterst{\"u}tzen. Ein Beispiel f{\"u}r diese Werkzeuge ist Eclipse Xtext, welches eine große Popularit{\"a}t im Bereich der modellgetriebenen Softwareentwicklung (MDSE ) besitzt. In diesem Beitrag untersuchen wir, inwieweit Xtext und andere metamodell-basierte Ans{\"a}tze zur Implementierung eines Editors und Compilers f{\"u}r die ASN.1 Spezifikation, welche von der ITU-T standardisiert wurde, verwendet werden k{\"o}nnen. Der metamodell-basierte Ansatz zur Implementierung der ASN.1 Spezifikation erm{\"o}glicht es, ASN.1-Dokumente softwaretechnisch wie ein Modell behandeln zu k{\"o}nnen, sodass dieses ASN.1-Modell mit anderen Softwaremodellen (z. B. Zustandsmaschinen)verkn{\"u}pft werden kann. Unsere Ergebnisse zeigen, dass mit relativ geringem Aufwand eine Basisimplementierung von ASN.1 zu erreichen ist, die bereits eine gute Werkzeugunterst{\"u}tzung liefert. Bei einigen Details der Implementierung ger{\"a}t man allerdings an die Grenze des Machbaren und diese sind daher sehr schwer zu realisieren. Dies betrifft insbesondere den Parser-Generator und das komplexe Metamodell.}, language = {en} } @misc{VandenhoutenSelz2006, author = {Vandenhouten, Ralf and Selz, Miriam}, title = {Ein webbasiertes Evaluationssystem f{\"u}r Hochschulen}, series = {Wissenschaftliche Beitr{\"a}ge 2006}, volume = {11}, journal = {Wissenschaftliche Beitr{\"a}ge 2006}, issn = {0949-8214}, doi = {10.15771/0949-8214_2006_1_13}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus-310}, pages = {75 -- 80}, year = {2006}, abstract = {Angetrieben durch die Hochschulgesetzgebung, Maßnahmen zur systematischen und regelm{\"a}ßigen Veranstaltungsevaluation von Fachbereichen zu ergreifen, wurde das Projekt „Webbasiertes Evaluationssystem" vom Total Quality Management (TQM) der Technischen Fachhochschule Wildau (TFH Wildau) angeregt. Um einen hohen Qualit{\"a}tsstandard der Lehre sicherzustellen, wollte die TFH Wildau die Qualit{\"a}t der Veranstaltungen messbar machen und suchte nach technischen Verbesserungsm{\"o}glichkeiten. Ziel bei diesem Projekt war eine umfassende L{\"o}sung, die es auf einfache und kosteng{\"u}nstige Art erm{\"o}glicht, Evaluationsdaten zu erheben, elektronisch zu erfassen und auszuwerten sowie den Dozenten und der Hochschulleitung zur Verf{\"u}gung zu stellen. Die Lehreinheiten erhalten auf diese Weise einen schnellen und fundierten Einblick in ihre Leistungen sowie eine entsprechende Einsch{\"a}tzung und k{\"o}nnen daraus konkrete Anregungen zur Weiterentwicklung ihrer fachlichen Kompetenz gewinnen. Die aus der Evaluierung hervorgehenden Informationen k{\"o}nnen zudem zur internen Rechenschaftslegung sowie zur kontinuierlichen Qualit{\"a}tssicherung und -verbesserung genutzt werden.}, language = {de} } @misc{VandenhoutenKistel2010, author = {Vandenhouten, Ralf and Kistel, Thomas}, title = {Middleware-Konzepte zur Verteilung von komponentenbasierten Anwendungen im Netzwerk}, series = {Wissenschaftliche Beitr{\"a}ge 2009/2010}, volume = {14}, journal = {Wissenschaftliche Beitr{\"a}ge 2009/2010}, issn = {0949-8214}, doi = {10.15771/0949-8214_2010_1_4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus-839}, pages = {33 -- 38}, year = {2010}, abstract = {Dieser Beitrag untersucht Konzepte zur Verteilung von Softwareanwendungen auf Basis des OSGi-Standards im Netzwerk. Darin wird mit R-OSGi eine L{\"o}sung vorgestellt, die transparente Anwendungsentwicklung gegen{\"u}ber der verwendeten Netzwerktechnologie erm{\"o}glicht. Dabei wird auch darauf eingegangen, wie netzwerkspezifische Charakteristiken (h{\"o}here Latenzzeiten, {\"U}bertragungsfehler oder Ausfall des Netzwerkes) agnostisch auf die h{\"o}heren Softwareschichten abgebildet werden k{\"o}nnen.}, language = {de} } @misc{VandenhoutenHollandMoritz2013, author = {Vandenhouten, Ralf and Holland-Moritz, Ralph}, title = {Erkennung von Bewegungsprofilen im Geb{\"a}udemanagement mit Hilfe von Complex Event Processing}, series = {Wissenschaftliche Beitr{\"a}ge 2013}, volume = {17}, journal = {Wissenschaftliche Beitr{\"a}ge 2013}, issn = {0949-8214}, doi = {10.15771/0949-8214_2013_1_10}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-3138}, pages = {55 -- 60}, year = {2013}, abstract = {Dieser Beitrag pr{\"a}sentiert einen L{\"o}sungsvorschlag zur Erkennung von Bewegungs- und Ausbreitungsprofilen anhand von Sensordaten im Geb{\"a}udemanagement. Dazu wird zun{\"a}chst ein Szenario definiert, auf dessen Basis ein Ansatz vorgestellt wird, der auf der Integration von Ereignissen {\"u}ber der Zeit und dem Ort basiert. Anschließend wird auf Informationen eingegangen, welche f{\"u}r eine Auswertung bereit stehen m{\"u}ssen. Zum Schluss wird die umgesetzte L{\"o}sung zur Implementierung des Ansatzes auf Basis des Complex Event Processing vorgestellt.}, language = {de} } @misc{VandenhoutenKistel2012, author = {Vandenhouten, Ralf and Kistel, Thomas}, title = {A model-driven concept for the automatic integration of legacy protocols to distributed component-oriented software systems}, series = {Wissenschaftliche Beitr{\"a}ge 2012}, volume = {16}, journal = {Wissenschaftliche Beitr{\"a}ge 2012}, issn = {0949-8214}, doi = {10.15771/0949-8214_2012_1_8}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus-1295}, pages = {63 -- 68}, year = {2012}, abstract = {The implementation of communication protocols is an important development task that appears frequently in software projects. This article is a vision paper that describes the components of the currently available implementation strategies and problems that arise. The article introduces the main existing protocol engineering techniques and puts them into the context of model driven software development. At the end a methodology is introduced for the automatic generation of manager interfaces of Device Agent protocols for the use in a distributed component oriented environment, using ASN.1 and SDL. This article describes the preliminary results of the MOSES project (model-driven software engineering of distributed embedded systems) which is funded by the German ministry of Education and Research (BMBF). In this project the authors are concentrating on medical and facility management areas where they have particular experiences.}, language = {en} } @misc{VandenhoutenHollandMoritz2012, author = {Vandenhouten, Ralf and Holland-Moritz, Ralph}, title = {A software architecture for intelligent facility management based on complex event processing}, series = {Wissenschaftliche Beitr{\"a}ge 2012}, volume = {16}, journal = {Wissenschaftliche Beitr{\"a}ge 2012}, issn = {0949-8214}, doi = {10.15771/0949-8214_2012_1_7}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus-1303}, pages = {57 -- 62}, year = {2012}, abstract = {This article presents an architectural suggestion for an intelligent management system which evaluates data using artificial intelligence. The architecture uses complex event processing in order to gain high flexibility when connecting the individual components. As an illustration of the components and their interaction a facility management system is used as an example.}, language = {en} } @misc{VandenhoutenFiebelkornFunke2016, author = {Vandenhouten, Ralf and Fiebelkorn, Richard and Funke, Andrea}, title = {A Modular Mobile Device for Real-Time 3D Streaming}, series = {Wissenschaftliche Beitr{\"a}ge 2016}, volume = {20}, journal = {Wissenschaftliche Beitr{\"a}ge 2016}, issn = {0949-8214}, doi = {10.15771/0949-8214_2016_1_5}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-5323}, pages = {37 -- 43}, year = {2016}, abstract = {In recent years, 3D movies and streaming films have become increasingly popular. Even mobile devices, such as mobile phones and tablet computers, are becoming more popular, more powerful and have better multimedia capabilities. Nevertheless, compact mobile devices to broadcast live 3D videos in real time are barely available. In this article, we provide a modular and mobile solution that allows 3D video streaming in real time at 25 frames per second and with a resolution of 1280 × 720 pixels (720p). As operating system, we use standard hardware components combined with Android. Furthermore, we will describe the restraints of the development, and how they were solved.}, language = {en} } @article{PerlitzLambertzCotuketal.2004, author = {Perlitz, Volker and Lambertz, Manfred and Cotuk, Birol and Grebe, Reinhard and Vandenhouten, Ralf and Flatten, Guido and Petzold, Ernst Richard and Schmid-Sch{\"o}nbein, Holger and Langhorst, Peter}, title = {Cardiovascular rhythms in the 0.15-Hz band: common origin of identical phenomena in man and dog in the reticular formation of the brain stem?}, series = {Pfl{\"u}gers Archiv: European Journal of Physiology}, volume = {448}, journal = {Pfl{\"u}gers Archiv: European Journal of Physiology}, number = {6}, issn = {1432-2013}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9348}, year = {2004}, abstract = {Selected examples from experiments in humans and dogs with time series of reticular neurons, respiration, arterial blood pressure and cutaneous forehead blood content fluctuations were analysed using multiscaled time-frequency distribution, post-event-scan and pointwise transinformation. We found in both experiments a "0.15-Hz rhythm" exhibiting periods of spindle waves (increasing and decreasing amplitudes), phase synchronized with respiration at 1:2 and 1:1 integer number ratios. At times of wave-epochs and n:m phase synchronization, the 0.15-Hz rhythm appeared in heart rate and arterial blood pressure. As phase synchronization of the 0.15-Hz rhythm with respiration was established at a 1:1 integer number ratio, all cardiovascular-respiratory oscillations were synchronized at 0.15 Hz. Analysis of a canine experiment supplied evidence that the emergence of the 0.15-Hz rhythm and n:m phase synchronization appears to result from a decline in the level of the general activity of the organism associated with a decline in the level of activity of reticular neurons in the lower brainstem network. These findings corroborate the notion of the 0.15-Hz rhythm as a marker of the "trophotropic mode of operation" first introduced by W.R. Hess.}, language = {en} } @misc{SchmalenbergVandenhouten2016, author = {Schmalenberg, Falko and Vandenhouten, Ralf}, title = {A DFD Based Approach to Model Data Processing Solutions}, series = {Wissenschaftliche Beitr{\"a}ge 2016}, volume = {20}, journal = {Wissenschaftliche Beitr{\"a}ge 2016}, issn = {0949-8214}, doi = {10.15771/0949-8214_2016_1_4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-5314}, pages = {31 -- 36}, year = {2016}, abstract = {This paper introduces procedures, which facilitate the development of as well as the linking between modular data processing processes into different and versatile system solutions. Based on the concept of data flow diagrams (Yourdon 1989), processes and data flows are used. With the ability of a process to harness any amount of in- and outputs with different sources and destinations, it is possible to model any conceivable data processing problem. By aggregating a diagram as a new process, it becomes possible to outsource partial process chains to different abstraction levels. As a result, even very complex solutions can be modeled and explained in a clear way. The introduced uniform termination flow while traversing the graph creates a good readability, which also makes it possible to quickly detect weaknesses. Moreover, this solution is comprehensive and advances the cooperation in teams and development.}, language = {en} } @article{VandenhoutenLambertzLanghorstetal.2000, author = {Vandenhouten, Ralf and Lambertz, Manfred and Langhorst, Peter and Grebe, Reinhard}, title = {Nonstationary time-series analysis applied to investigation of brainstem system dynamics}, series = {IEEE Transactions on Biomedical Engineering (T-BME)}, volume = {47}, journal = {IEEE Transactions on Biomedical Engineering (T-BME)}, number = {6}, issn = {1558-2531}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9337}, pages = {729 -- 737}, year = {2000}, abstract = {Previous investigations of the dynamic organization of the lower brainstem and its relation to peripheral and other central nervous systems were predominantly performed by linear methods. These are based on time-averaging algorithms, which merely can be applied to stationary signal intervals. Thus, the current concept of the common brainstem system (CBS) in the reticular formation (RF) of the lower brainstem and basic types of its functional organization have been developed. Here, the authors present experiments where neuronal activities of the RF and the nucleus tractus solitarii (NTS, first relay station of baroreceptor afferents) were recorded together with related parameters of electroencephalogram (EEG), respiration, and cardiovascular system. The RF neurons are part of the CBS, which participates in regulation and coordination of cardiovascular, respiratory, and motor systems, and vigilance. The physiological time series, thus acquired, yield information about the internal dynamic coordination of the participating regulation processes. The major problem in evaluating these data is the nonlinearity and nonstationarity of the signals. The authors used a set of especially designed time resolving methods to evaluate nonlinear dynamic couplings in the interaction between CBS neurons and cardiovascular signals, respiration and the EEG, and between NTS neurons (influenced by baroreceptor afferents) and CBS neurons.}, language = {en} } @incollection{MietznerVandenhoutenHartmann2015, author = {Mietzner, Dana and Vandenhouten, Ralf and Hartmann, Frank}, title = {Collaborative Problem Solving for Regional Development? - A New Approach of Public Participation}, series = {Electronic Government and Electronic Participation}, booktitle = {Electronic Government and Electronic Participation}, editor = {Tambouris, Efthimios}, publisher = {IOS Press}, address = {Amsterdam}, isbn = {978-1-61499-570-8}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9177}, publisher = {Technische Hochschule Wildau}, pages = {19 -- 26}, year = {2015}, abstract = {In this paper, we present a concept prototype for a socio-technical assistant (s.TAS) as a collaborative problem-solving approach to support the regional development in a selected rural district. The presented concept considers insides from citizen participation as an open government instrument and strongly incorporates collaborative value creation to address regional development issues. The presented approach incorporates citizens and other regional stakeholders (e.g., companies, organizations, associations) as problem-solvers and strongly enables regional stakeholders and the public administration to develop solutions jointly as an ongoing learning process. In this sense, s.TAS addresses participation approaches and elaborates participation to collaboration. For the development of this participatory problem-solving approach, we conducted (1) a broad literature review on participatory approaches and (2) we implemented a qualitative, collaborative research approach with participants from different stakeholder groups. In several workshop rounds, supported by interviews and surveys we developed a concept prototype for the socio-technical assistant s.TAS, which is a technical, smart system, which supports information, communication, participation and collaboration in the selected region.}, language = {en} } @article{VandenhoutenWendlandt2015, author = {Vandenhouten, Ralf and Wendlandt, Ole}, title = {High-precision Optical Position Measurement in Indoor Environments}, series = {Optik \& Photonik}, volume = {10}, journal = {Optik \& Photonik}, number = {3}, issn = {1863-1460}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9305}, pages = {24 -- 27}, year = {2015}, abstract = {Indoor localization is still a challenge today. Conventional methods based on satellite navigation, like GPS, can only be used outdoors. On the other hand, radio signal architectures, like WiFi or NFC, require high cost infrastructure to be installed inside the building. In collaboration with Ixellence GmbH, the research group for telematics of the University of Applied Science Wildau is developing a new inexpensive solution based on the camera of a mobile device. This approach only requires the availability of multiple identifiable landmarks that can be installed cost-efficiently in an indoor environment. Our investigations show that this method is very accurate and can produce repeatable, robust results.}, language = {en} } @article{VandenhoutenSelzDoktor2005, author = {Vandenhouten, Ralf and Selz, Miriam and Doktor, Michael}, title = {Werkzeuge f{\"u}r die gezielte Parodontalbetreuung mit individueller Risikoanalyse}, series = {PN Parodontologie Nachrichten}, volume = {2005}, journal = {PN Parodontologie Nachrichten}, number = {2}, issn = {1613-7191}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9355}, year = {2005}, abstract = {Mit neuer Methode l{\"a}sst sich die Wahrscheinlichkeit einer fortschreitenden Parodontitis absch{\"a}tzen.}, language = {de} } @inproceedings{MetzlerVandenhoutenKroneetal.1998, author = {Metzler, Volker H. and Vandenhouten, Ralf and Krone, J{\"o}rg and Grebe, Reinhard}, title = {Unsupervised image segementation by stochastic reconstruction}, series = {Proceedings of SPIE}, volume = {3338}, booktitle = {Proceedings of SPIE}, issn = {1996-756X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-9329}, year = {1998}, abstract = {To segment complex and versatile image data from different modalities it is almost impossible to achieve satisfying results without the consideration of contextual information. In this approach, image segmentation is regarded as a high- dimensional optimization task, that can be solved by stochastical methods like evolutionary algorithms (EA). Initially, the iterative algorithm is provided with a set of good-quality sample segmentations. An efficient EA-based learning strategy generates a segmentation for a given target image from the provided samples. This two-level process consists of a global image-based optimization whose convergence is enhanced by locally operating pixel-based Boltzmann processes which restrict the search space to reasonable subsets. The stochastic reconstruction extracts the relevant information from the samples in order to adapt it onto the current segmentation problem, which results in a consistent labeling for the target image. The algorithm works unsupervised, because the range of possible labels and their contextual interpretation is provided implicitly by the sample segmentations. To prove the usefulness of the method experimental results based on both, reproducible phantom images and physiological NMR scans are presented. Moreover, an analysis of the basic segmentation and convergence properties is provided.}, language = {en} } @misc{BezrukGedatHolzheimeretal.2015, author = {Bezruk, Valeriy and Gedat, Egbert and Holzheimer, Katja and Vandenhouten, Ralf}, title = {Automated recognition of sleep stages by electroencephalograms}, series = {Wissenschaftliche Beitr{\"a}ge 2015}, volume = {19}, journal = {Wissenschaftliche Beitr{\"a}ge 2015}, issn = {0949-8214}, doi = {10.15771/0949-8214_2015_1_5}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-3552}, pages = {39 -- 43}, year = {2015}, abstract = {The assessment of different sleep stages and their disorders in diseases is an important part of telematic medicine. With an electroencephalogram, the different stages of sleep can be monitored and classified with respect to brain activity. By means of modern data management such as the patient monitor ixTrend, for example, the data can be recorded for long sleep phases and evaluated by a computer using appropriate software, such as Dataplore. Here, a new mathematical model for the automated classification of sleep stages is introduced. The statistical method of autocorrelation, applied to six known sleep stages, was extended by one new class for unknown signals. Due to this new class, it is not necessary to sort all recorded EEG signals into one of the known classes, thereby, minimising the probability of errors. Further, the dependence of the error probability on the duration of the analysed EEG signal was assessed. A minimal error probability of pmin = 0.15 was detected. Exemplary data for one patient are reported.}, language = {en} } @inproceedings{PulwerFiebelkornZeschetal.2019, author = {Pulwer, Silvio and Fiebelkorn, Richard and Zesch, Christoph and Steglich, Patrick and Villringer, Claus and Villasmunta, Francesco and Gedat, Egbert and Handrich, Jan and Schrader, Sigurd and Vandenhouten, Ralf}, title = {Endoscopic orientation by multimodal data fusion}, series = {Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII}, booktitle = {Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII}, issn = {1996-756X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-11420}, year = {2019}, abstract = {To improve the feasibility of endoscopic inspection processes we developed a system that provides online information about position, orientation and viewing direction of endoscopes, to support the analysis of endoscopic images and to ease the operational handling of the equipment. The setup is based on an industrial endoscope consisting of a camera, various MEMS and multimodal data fusion. The software contains algorithms for feature and geometric structure recognition as well as Kalman filters. To track the distal end of the endoscope and to generate 3D point cloud data in real time the optical and photometrical characteristics of the system are registered and the movement of the endoscope is reconstructed by using image processing techniques.}, language = {en} }