Searched for: subject%3A%22Feature%255C%2Bextraction%22
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van de Guchte, L. (author)
book 2020
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de Gelder, E. (author), Cator, E. (author), Paardekooper, J.-P. (author), op den Camp, O.M.G.C. (author), de Schutter, B. (author)
Scenario-based methods for the assessment of Automated Vehicles (AVs) are widely supported by many players in the automotive field. Scenarios captured from real-world data can be used to define the scenarios for the assessment and to estimate their relevance. Therefore, different techniques are proposed for capturing scenarios from real-world...
conference paper 2020
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Dudzik, B. (author), Jansen, M.P. (author), Burger, F. (author), Kaptein, F. (author), Broekens, J. (author), Heylen, D.K.J. (author), Hung, H. (author), Neerincx, M.A. (author), Truong, K.P. (author)
An important aspect of human emotion perception is the use of contextual information to understand others' feelings even in situations where their behavior is not very expressive or has an emotionally ambiguous meaning. For technology to successfully detect affect, it must mimic this human ability when analyzing audiovisual input. Databases upon...
conference paper 2019
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van Rooijen, A.L. (author), Bouma, H. (author), Verbeek, F. (author)
Person re-identification (re-id) is the task of identifying a person of interest across disjoint camera views in a multi-camera system. This is a challenging problem due to the different poses, viewpoints and lighting conditions. Deeply learned systems have become prevalent in the person re-identification field as they are capable to deal with...
conference paper 2019
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Thammasan, N. (author), Stuldreher, I. (author), Wismeijer, D. (author), Poel, M. (author), van Erp, J. (author), Brouwer, A.M. (author)
Skin conductance or electrodermal activity (EDA) has been shown to be a reliable indicator of emotional arousal. With the current development to record EDA with wearable sensors attached to individuals who freely move around, detecting EDA artefacts is essential. Current practice of detecting EDA artefacts relies heavily on expert judgments....
conference paper 2019
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Rooijen, A.L. (author), Bouma, H. (author), Verbeek, F. (author)
conference paper 2018
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Tuma, M. (author), Rorbech, V. (author), Prior, M. (author), Igel, C. (author)
We designed and jointly optimized an integrated signal processing chain for detection and classification of long-range passive-acoustic underwater signals recorded by the global geophysical monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization. Starting at the level of raw waveform data, a processing chain of signal...
article 2016
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Rossum, W.L. (author), de Wit, J.J.M. (author)
There are several scenarios for which it is desirable to obtain the layout of a building interior using outside radar sensing and surveillance. These situations may arise after an earthquake, when a building might become unstable or when the building entrance is blocked in hostage taking or criminal acts by outlaws. In this chapter, several...
bookPart 2014
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Pyayt, A.L. (author), Kozionov, A.P. (author), Mokhov, I.I. (author), Lang, B. (author), Meijer, R.J. (author), Krzhizhanovskaya, V.V. (author), Sloot, P.M.A. (author)
Detection of early warning signals for the imminent failure of large and complex engineered structures is a daunting challenge with many open research questions. In this paper we report on novel ways to perform Structural Health Monitoring (SHM) of flood protection systems (levees, earthen dikes and concrete dams) using sensor data. We present a...
article 2014
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Yu, L. (author), Li, X. (author), Smith, J. (author), Tierney, S. (author), Sweeney, R. (author), Kjellander, B.K.C. (author), Gelinck, G.H. (author), Anthopoulos, T.D. (author), Stingelin, N. (author)
We present a new soluble pentacene derivative with ethyl substitutions in the 1,13,14,22 backbone positions to modulate the solubility and film forming properties of this material compared to triisopropylsilylethynyl (TIPS) pentacene. This permits reproducible production of molecularly highly ordered structures that feature average transistor...
article 2012
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Burghouts, G.J. (author), van den Broek, B. (author), Alefs, B.G. (author), den Breejen, E. (author), Schutte, K. (author), TNO Defensie en Veiligheid (author)
While sensors become distributed at an unprecedented scale, their use in the monitoring of hostile activities is very limited. Monitoring by humans is demanding and expensive. To aid in the complex and semantic task of deciding whether a situation implies hostile intent, the authors describe a set of automated behavioral indicators based on...
conference paper 2009
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TNO Defensie en Veiligheid (author), Burghouts, G.J. (author), Smeulders, A.W.M. (author), Geusebroek, J.M. (author)
Assessing similarity between features is a key step in object recognition and scene categorization tasks. We argue that knowledge on the distribution of distances generated by similarity functions is crucial in deciding whether features are similar or not. Intuitively one would expect that similarities between features could arise from any...
conference paper 2009
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Dekker, R.J. (author), TNO Defensie en Veiligheid (author)
This paper describes a method for the extraction of road networks from radar images. Three phases can be distinguished: (1) detection of road lines, (2) network building, and (3) network fusion. The method has been demonstrated on two radar images, one urban and one rural. Despite the differences, the procedure was able to cover a large part of...
conference paper 2008
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van Maanen, P.P. (author), Klos, T. (author), van Dongen, C.J. (author), TNO Defensie en Veiligheid (author)
This paper involves a human-agent system in which there is an operator charged with a pattern recognition task, using an automated decision aid. The objective is to make this human-agent system operate as effectively as possible. Effectiveness is gained by an increase of appropriate reliance on the operator and the aid. We studied whether it is...
conference paper 2007
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Matějka, P. (author), Burget, L. (author), Schwarz, P. (author), Glembek, O. (author), Karafiát, M. (author), Grézl, F. (author), Černocký, J. (author), van Leeuwen, D.A. (author), Brümmer, N. (author), Strasheim, A. (author), TNO Defensie en Veiligheid (author)
This paper describes STBU 2006 speaker recognition system, which performed well in the NIST 2006 speaker recognition evaluation. STBU is consortium of 4 partners: Spescom Data Voice (South Africa), TNO (Netherlands), BUT (Czech Republic) and University of Stellenbosch (South Africa). The primary system is a combination of three main kinds of...
conference paper 2007
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TNO Informatie- en Communicatietechnologie (author), Smeaton, A.F. (author), Over, P. (author), Kraaij, W. (author)
The TREC Video Retrieval Evaluation (TRECVid)is an international benchmarking activity to encourage research in video information retrieval by providing a large test collection, uniform scoring procedures, and a forum for organizations 1 interested in comparing their results. TRECVid completed its fifth annual cycle at the end of 2005 and in...
conference paper 2006
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TNO Defensie en Veiligheid (author), Maris, M.G. (author), van Dijk, G.J.A. (author)
Guarding safety and security within industrial, commercial and military areas is an important issue nowadays. A specific challenge lies in the design of portable surveillance systems that can be rapidly deployed, installed and easily operated. Conventional surveillance systems typically employ standalone sensors that transmit their data to a...
conference paper 2005
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Messelink, W.A.C.M. (author), Schutte, K. (author), Vossepoel, A.M. (author), Cremer, F. (author), Schavemaker, J.G.M. (author), den Breejen, E. (author)
High detection performance is required for an operational system for the detection of landmines. Humanitarian de-mining scenarios, combined with inherent difficulties of detecting landmines on an operational (vibration, motion, atmosphere) as well as a scenario level (clutter, soil type, terrain), result in high levels of false alarms for most...
conference paper 2002
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Schwering, P.B.W. (author), TNO Fysisch en Elektronisch Laboratorium (author)
In recent years different sensor data fusion approaches have been analyzed and evaluated in the field of mine detection. In various studies comparisons have been made between different techniques. Although claims can be made for advantages for using certain techniques, until now there has been no single method identified with clearly outstanding...
conference paper 2001
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Fdez-Vidal, X.R. (author), Toet, A. (author), Garcia, J.A. (author), Fdez-Valdivia, J. (author)
This paper presents three computational visual distinctness measures, computed from image representational models based on selective filtering, statistical features, and visual patterns, respectively. They are applied to quantify the visual distinctness of targets in complex natural scenes. The measure that applies a simple decision rule to the...
article 2000
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