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Villani, M.L. (author), de Nicola, A. (author), Bouma, H. (author), van Rooijen, A. (author), Räsänen, P. (author), Peltola, J. (author), Toivonen, S. (author), Guarneri, M. (author), Stifini, C. (author), de Dominicis, L. (author)Preventing terrorist attacks at soft targets has become a priority for our society. The realiza tion of sensor systems for automatic threat detection in crowded spaces, such as airports and metro stations, is challenged by the limited sensing coverage capability of the devices in place due to the variety of dangerous materials, to the scanning...article 2023
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- de Dominicis, L. (author), Bouma, H. (author), Toivonen, S. (author), Stifini, C. (author), Villani, M.L. (author), de Nicola, A. (author), van Rooijen, A.L. (author), Baan, J. (author), Peltola, J. (author), Lämsä, A. (author), Räsänen, P. (author) conference paper 2021
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- Dijk, J. (author), van den Broek, S.P. (author), den Hollander, R.J.M. (author), Baan, J. (author), ten Hove, J.M. (author), Oorbeek, D. (author) conference paper 2021
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Ushakov, A. (author), Stephan, U. (author), Steinke, O. (author), Verlaan, A.L. (author), de Bock, M. (author), Maniscalco, M.P. (author), Verhoeff, P. (author)The Visible Spectroscopy Reference System (VSRS.55.E6) is going to be one of the first optical diagnostics in the ITER tokamak. The VSRS front-end part shall contains the 100 mm diameter first mirror (FM). The FM is expected to experience contamination with beryllium and tungsten. Levels of contamination on the order of 10 nm degrade the FM...conference paper 2020
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Koopman, A.S. (author), Naf, M. (author), Baltrusch, S.J. (author), Kingma, I. (author), Rodriguez-Guerrero, C. (author), Babic, J. (author), de Looze, M.P. (author), van Dieën, J.H. (author)The number one cause of disability in the world is low-back pain, with mechanical loading as one of the major risk factors. To reduce mechanical loading, exoskeletons have been introduced in the workplace. Substantial reductions in back muscle activity were found when using the exoskeleton during static bending and manual materials handling....article 2020
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Koopman, A.S. (author), Toxiri, S. (author), Power, V. (author), Kingma, I. (author), van Dieën, J.H. (author), Ortiz, J. (author), de Looze, M.P. (author)With mechanical loading as the main risk factor for LBP, exoskeletons (EXO)are designed to reduce the load on the back by taking over part of the moment normally generated by back muscles. The present study investigated the effect of an active exoskeleton, controlled using three different control modes (INCLINATION, EMG & HYBRID), on spinal...article 2019
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Brederode, L. (author), Pots, M. (author), Fransen, R.W. (author), Brethouwer, J.T. (author)Ever more observed data on destination and mode choices made by travelers is becoming available from e.g. GSM and ANPR data. For strategic transport demand modelling, this means that instead of estimating synthetic models and calibrating them on the limited set of available observations for a single study period definition, different data...conference paper 2019
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Verlaan, A.L. (author), Giesen, P.T.M. (author), van Grol, P. (author), Limpens, M. (author), Heijmans, J.A.C. (author), Visser, H. (author), Vink, H.J.P. (author), Maniscalco, M.P. (author), Verhoeff, P. (author), O'Neill, R. (author), Smith, M. (author), Stratton, B. (author), Gattuso, A. (author), Smiley, M. (author), Lasnier, C.J. (author), Feder, R. (author), Vasquez, J. (author), LeSher, M. (author)The Upper port Wide Angle Viewing System (UWAVS) is diagnostic system that provides visible light and InfraRed images of the divertor area in the ITER tokamak. The main functions of the UWAVS are to provide divertor wall and plasma luminance and temperature distributions at high spatial resolution (3–5 mm) and frame rates (500–1000 Hz) for...article 2018
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Wang, W. (author), Chen, Y. (author), Chen, Y. (author), Zhang, F. (author)Early detection of congestion is essential to traffic management. Conventional loop or microwave detectors provide flow and speed information but involve significant delays and they offer sparse coverage. To improve this situation, other data sources must be used. This paper investigates the potential use of floating car data (FCD) and ETC ...conference paper 2018
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van den Homberg, M.J.C. (author), Monné, R. (author), Spruit, M. (author)Natural disasters are chaotic and disruptive events, with compressed timelines and high levels of uncertainty. Comprehensive data on the impact becomes only available well into the response phase and data is scattered across organizations. Data heterogeneity issues are common. Consequently, responding organizations have difficulties finding data...article 2018
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Noack, B. (author), Sijs, J. (author), Hanebeck, U.D. (author)For decentralized fusion problems, ellipsoidal intersection has been proposed as an efficient fusion rule that provides less conservative results as compared to the well-know ovariance intersection method. Ellipsoidal intersection relies on the computation of a common estimate that is shared by the estimates to be fused. In this paper, an...conference paper 2017
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Noack, B. (author), Sijs, J. (author), Reinhardt, M. (author), Hanebeck, U.D. (author)In distributed and decentralized state estimation systems, fusion methods are employed to systematically combine multiple estimates of the state into a single, more accurate estimate. An often encountered problem in the fusion process relates to unknown common information that is shared by the estimates to be fused and is responsible for...article 2017
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Hogervorst, M.A. (author), Toet, A. (author)Previously, we presented two color mapping methods for the application of daytime colors to fused nighttime (e.g., intensified and longwave infrared or thermal (LWIR)) imagery. These mappings not only impart a natural daylight color appearance to multiband nighttime images but also enhance their contrast and the visibility of otherwise obscured...article 2017
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Noack, B. (author), Sijs, J. (author), Hanebeck, U.D. (author)Decentralized data fusion is a challenging task. Either it is too difficult to maintain and track the information required to perform fusion optimally, or too much information is discarded to obtain informative fusion results. A well-known solution is Covariance Intersection, which may provide too conservative fusion results. A less conservative...conference paper 2017
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de Boer, M.H.T. (author)In the modern world, networked sensor technology makes it possible to capture the world around us in real-time. In the security domain cameras are an important source of information. Cameras in public places, bodycams, drones and recordings with smart phones are used for real time monitoring of the environment to prevent crime (monitoring case);...doctoral thesis 2017
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Toet, A. (author)Despite of the ongoing interest in the fusion of multi-band images for surveillance applications and a steady stream of publications in this area, there is only a very small number of static registered multi-band test images (and a total lack of dynamic image sequences) publicly available for the development and evaluation of image fusion...article 2017
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de Boer, M.H.T. (author), Schutte, K. (author), Zhang, H. (author), Lu, Y.J. (author), Ngo, C.W. (author), Kraaij, W. (author)One of the challenges in Multimedia Event Retrieval is the integration of data from multiple modalities. A modality is defined as a single channel of sensory input,such as visual or audio. We also refer to this as data source. Previous research has shown that the integration of different data sources can improve performance compared to only...article 2016
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Lefter, I. (author), Burghouts, G.J. (author), Rothkrantz, L.J.M. (author)This paper investigates how speech and gestures convey stress, and how they can be used for automatic stress recognition. As a first step, we look into how humans use speech and gestures to convey stress. In particular, for both speech and gestures, we distinguish between stress conveyed by the intended semantic message (e.g. spoken words for...article 2016
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Elfring, J. (author), Appeldoorn, R. (author), Kwakkernaat, M. (author)This work focuses on vehicle automation applications that require both the estimation of kinematic and geometric information of surrounding vehicles, e.g., automated overtaking or merging. Rather then using one sensor that is able to estimate a vehicle's geometry from each sensor frame, e.g., a lidar, a multisensor simultaneous vehicle tracking...conference paper 2016
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Bosman, H.H.W.J. (author), Iacca, G. (author), Tejada, A. (author), Wörtche, H.J. (author), Liotta, A. (author)The field of wireless sensor networks (WSNs), embedded systems with sensing and networking capabil- ity, has now matured after a decade-long research effort and technological advances in electronics and networked systems. An important remaining challenge now is to extract meaningful information from the ever-increasing amount of sensor data...article 2016