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Giardina, C. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
This paper describes a new framework for the assessment of potential damage caused by tunneling-induced settlement to surface masonry buildings. Finite element models in two and three dimensions, validated through comparison with experimental results and field observations, are used to investigate the main factors governing the structural...
journal article 2015
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Van Bijleveld, C. (author), Hendriks, R.C. (author), Heusdens, R. (author), Taal, C.H. (author)
A pair of properly functioning ears is of great importance for various common daily tasks. While the perception of speech is perhaps one of the most obvious examples, being notified by certain sounds like (fire-) alarms or traffic sounds can even be lifesaving. Therefore it is not surprising that hearing impairment may have a strong (social)...
journal article 2010
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Lichtenauer, J.F. (author), Hendriks, E.A (author), Reinders, M.J.T. (author)
To recognize speech, handwriting, or sign language, many hybrid approaches have been proposed that combine Dynamic Time Warping (DTW) or Hidden Markov Models (HMMs) with discriminative classifiers. However, all methods rely directly on the likelihood models of DTW/HMM. We hypothesize that time warping and classification should be separated...
journal article 2008
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Heusdens, R. (author), Hendriks, R.C. (author), Jensen, J. (author), Kjems, U. (author)
Although most noise reduction algorithms are critically dependent on the noise power spectral density (PSD), most procedures for noise PSD estimation fail to obtain good estimates in nonstationary noise conditions. Recently, a DFT-subspace-based method was proposed which improves noise PSD estimation under these conditions. However, this...
journal article 2009
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Patras, L. (author), Hendriks, E.A. (author), Lagendijk, R.L. (author)
journal article 2001
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Xu, Y.C. (author), Lei, B. (author), Hendriks, E.A. (author)
This paper studies how to improve the field of view (FOV) coverage of a camera network. We focus on a special but practical scenario where the cameras are randomly scattered in a wide area and each camera may adjust its orientation but cannot move in any direction. We propose a particle swarm optimization (PSO) algorithm which can efficiently...
journal article 2011
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Redert, A. (author), Hendriks, E. (author), Biemond, J. (author)
journal article 1999
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Erkelens, J.S. (author), Hendriks, R.C. (author), Heusdens, R. (author)
This letter considers the estimation of speech signals contaminated by additive noise in the discrete Fourier transform (DFT) domain. Existing complex-DFT estimators assume independency of the real and imaginary parts of the speech DFT coefficients, although this is not in line with measurements. In this letter, we derive some general results on...
journal article 2008
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Dik, J. (author), Alfeld, M. (author), Janssens, K. (author), Hendriks, E. (author)
journal article 2011
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Hendriks, Ch.F. (author), Janssen, G.M.T. (author)
journal article 2001
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Hendriks, Ch.F. (author), Janssen, G.M.T. (author)
journal article 2001
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Taal, C.H. (author), Hendriks, R.C. (author), Heusdens, R. (author), Jensen, J. (author)
Existing objective speech-intelligibility measures are suitable for several types of degradation, however, it turns out that they are less appropriate in cases where noisy speech is processed by a time-frequency weighting. To this end, an extensive evaluation is presented of objective measure for intelligibility prediction of noisy speech...
journal article 2011
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Hendriks, A.T.W.M. (author), Dunne, S.C. (author), Van de Giesen, N.C. (author)
journal article 2014
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Hendriks, Ch.F. (author), Janssen, G.M.T. (author)
journal article 2001
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Hendriks, B.V. (author)
journal article 2009
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Lei, B.J. (author), Hendriks, E.A. (author)
We propose a real-time multi-step view reconstruction algorithm and we tune its implementation to a virtual teleconference application. Theoretical motivations and practical implementation issues of the algorithm are detailed. The proposed algorithm can be used to reconstruct novel views at arbitrary poses (position and orientation) in a way...
journal article 2002
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Lei, B.J. (author), Chang, C. (author), Hendriks, E.A. (author)
journal article 2004
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Hendriks, R.C. (author), Jensen, J. (author), Heusdens, R. (author)
All discrete Fourier transform (DFT) domain-based speech enhancement gain functions rely on knowledge of the noise power spectral density (PSD). Since the noise PSD is unknown in advance, estimation from the noisy speech signal is necessary. An overestimation of the noise PSD will lead to a loss in speech quality, while an underestimation will...
journal article 2008
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De Visser, M. (author), Schwering, P.B.W. (author), De Groot, J.F. (author), Hendriks, E.A. (author)
journal article 2006
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Van der Maaten, L.J.P. (author), Hendriks, E.A. (author)
In this paper, we investigate to what extent modern computer vision and machine learning techniques can assist social psychology research by automatically recognizing facial expressions. To this end, we develop a system that automatically recognizes the action units defined in the facial action coding system (FACS). The system uses a...
journal article 2011
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