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Borchert, S. (author)The main focus of video encoding in the past twenty years has been on video broadcasting. A video is captured and encoded by professional equipment and then watched on varying consumer devices. Consequently, the focus was to increase the quality and to keep down the decoder complexity. In more recent years we observe a shift in user behavior,...doctoral thesis 2010
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Van Dalen, K.N. (author), Ghose, R. (author), Drijkoningen, C.G. (author), Smeulders, D.M.J. (author)A reliable estimate of the in?situ permeability of a porous layer in the subsurface is extremely difficult to obtain. We have observed that at the field seismic frequency band the poroelastic behavior for different seismic wavetypes can differ in such a way that their combination gives unique estimates of in?situ permeability and porosity...journal article 2010
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Karlsson, S.M. (author), Pont, S.C. (author), Koenderink, J.J. (author), Zisserman, A. (author)We investigate the estimation of illuminance flow using Histograms of Oriented Gradient features (HOGs). In a regression setting, we found for both ridge regression and support vector machines, that the optimal solution shows close resemblance to the gradient based structure tensor (also known as the second moment matrix). Theoretical results...journal article 2010
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Jin, H. (author)This thesis gives a description of diagnosing life consumption and future life estimation of oil-impregnated paper insulated cable by using dielectric loss value. Dielectric loss values were investigated at different temperatures and different electrical field intensities in the laboratory. Based on laboratory measurements, a program was built;...master thesis 2010
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Liu, D. (author)In recent years, light-emitting diodes (LEDs) have played an increasingly more important role for light illumination. Beyond the basic function of pure illumination via intensity control of xed color light, LED technology additionally allows control over the light color and illumination pattern. In order to realize these functions of intelligent...master thesis 2010
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Badri, M.A. (author), Wilders, P. (author), Azimian, A.R. (author)Hydrodynamic simulations of tidal currents in the Persian Gulf are presented. Water surface level and velocity have been determined by a Kelvin wave expansion as a new hydrodynamic calibration tool for estimating the dynamical field and flow patterns. In the procedure, leading to the Kelvin wave expansion, data of tidal constituents from co...report 2010
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Van der Zee, K.G. (author), Van Brummelen, E.H. (author), De Borst, R. (author)We develop duality-based a posteriori error estimates for functional outputs of solutions of free-boundary problems via shape-linearization principles. To derive an appropriate dual (linearized adjoint) problem, we linearize the domain dependence of the very weak form and goal functional of interest using techniques from shape calculus. We show...journal article 2010
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Van der Zee, K.G. (author), Van Brummelen, E.H. (author), De Borst, R. (author)In free-boundary problems, the accuracy of a goal quantity of interest depends on both the accuracy of the approximate solution and the accuracy of the domain approximation. We develop duality-based a posteriori error estimates for functional outputs of solutions of free-boundary problems that include both sources of error. The derivation of an...journal article 2010
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Fang, K. (author)Broadband wireless communication systems require high transmission rates, where the bandwidth of the transmitted signal is larger than the channel coherence bandwidth. This gives rise to time dispersion of the transmitted symbols or frequency-selectivity with different frequency components exhibiting different gains. The time dispersion of the...doctoral thesis 2010
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Anguelov, Z.V. (author)Because of their poor Business/IT alignment, many legacy systems lack the flexibility to support rapid changes to the business processes they implement, required by today's enterprises. Furthermore, after many years of maintenance, there is a need to manage their resulting increased complexity and maximize asset utilization through reuse. The...master thesis 2010
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Groeneboom, P. (author), Jongbloed, G. (author), Witte, B.I. (author)We consider the problem of estimating the distribution function, the density and the hazard rate of the (unobservable) event time in the current status model. A well studied and natural nonparametric estimator for the distribution function in this model is the nonparametric maximum likelihood estimator (MLE). We study two alternative methods for...journal article 2010
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Mak, W.K. (author), Viti, F. (author), Hoogendoorn, S.P. (author), Hegyi, A. (author)Roads in the Netherlands are often heavily congested. Real-time travel time information can be a valuable instrument to reduce the impact of increasing traffic demand on travel time with advantages for traffic participants as well as for the traffic network managers. For urban roads travel time estimation is a more complex problem than for...conference paper 2010
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Kalbasenka, A.N. (author)Crystallization is one of the oldest separation and purification techniques. Batch crystallizers are widely used in production of fine chemicals, food ingredients, specialty chemicals, and active pharmaceutical ingredients. Control of the crystalline material properties is a challenging task due to complexity and nonlinearity of batch...doctoral thesis 2009
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Peddemors, A.J.H. (author)In the past several years, personal mobile devices have developed rapidly as versatile computing platforms, capable of installing and running many different applications. Often, these devices are equipped with multiple (wireless) network interfaces supporting internet access through one or more networks. The availability of these networks is...doctoral thesis 2009
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Broersen, P.M.T. (author)The sample autocorrelation function is defined by the mean lagged products (LPs) of random observations. It is the inverse Fourier transform of the raw periodogram. Both contain the same information, and the quality of the full-length sample autocorrelation to represent random data is as poor as that of a raw periodogram. The autoregressive (AR)...journal article 2009
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De Visser, C.C. (author), Chu, Q.P. (author), Mulder, J.A. (author)A new methodology for creating highly accurate, static nonlinear maps from scattered, multivariate data is presented. This new methodology uses the B-form polynomials of multivariate simplex splines in a new linear regression scheme. This allows the use of standard parameter estimation techniques for estimating the B-coefficients of the...journal article 2009
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Caarls, J. (author)In this thesis we introduce the reader to the field of Augmented Reality (AR) and describe aspects of an AR system. We show the current uses in treatment of phobias, games, sports and industry. We present the challenges for Optical See-Through Augmented Reality in which the real world is perceived normally by the user and is augmented with...doctoral thesis 2009
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Ariananda, D.D. (author)One of the important functionalities of Dynamic Spectrum Access is spectrum estimation. Accuracy and speed of estimation are the key indicators to select the appropriate spectrum estimation technique. In this thesis work, the possibility of employing wavelet packet decomposition as a basis for a new spectrum estimation approach is investigated....master thesis 2009
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Bucksch, A. (author), Lindenbergh, R. (author), Mementi, M. (author), Raman, M.Z. (author)New airborne LiDAR (Light Detection and Ranging) measurement systems, like the FLI-MAP 400 System, make it possible to obtain high density data containing far more information about single objects, like trees, than traditional airborne laser systems. Therefore, it becomes feasible to analyze geometric properties of trees on the individual object...conference paper 2009
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Nicolai, F.P. (author)Current home networks are not well designed to support quality of service (QoS). Successfully employing current QoS solutions in heterogeneous environments, such as home networks, requires compatibility between the many possible solutions for the different network technologies. Often the solutions need support from all devices throughout the...master thesis 2009