Searched for: author:"Hogervorst, M.A."
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van der Burg, E. (author), Hogervorst, M.A. (author), Toet, A. (author)
Targets that are well camouflaged under static conditions are often easily detected as soon as they start moving. We investigated and evaluated ways to design camouflage that dynamically adapts to the background and conceals the target while taking the variation in potential viewing directions into account. In a human observer experiment...
conference paper 2020
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Bijl, P. (author), Hogervorst, M.A. (author)
Image-based Electro-Optical system simulation including an end-to-end performance test is a powerful tool to characterize a camera system before it has been built. In particular, it can be used in the design phase to make an optimal trade-off between performance on the one hand and SWaPC (Size, Weight, Power and Cost) criteria on the other....
conference paper 2019
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Brouwer, A.M. (author), Hogervorst, M.A. (author), van Erp, J.B.F. (author), Grootjen, M. (author), van Dam, E. (author), Zandstra, E.H. (author)
Understanding consumers’ emotional experience during the process of cooking is important to enable the development of food products. In addition to verbal (‘explicit’) reports, physiological variables and facial expression may be helpful measures since they do not interfere with the experience itself and are of a continuous nature. This study...
article 2019
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Hogervorst, M.A. (author)
Interview met M Hoogervorst van TNO. Kleding is emotie. Wat de één prachtig vindt, bestempelt de ander als spuuglelijk. Hoe lastig is het dan om gevechtskleding te maken voor ruim 45.000 militairen? Sterker! dook in de wereld van het Defensie Operationeel Kleding Systeem (DOKS) en dit is wat we vonden. Plus een bonuspagina met reacties uit...
article 2019
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Hogervorst, M.A. (author), Bijl, P. (author), Fuller, P. (author), Aartsen, R. (author), Jovanov, L. (author)
Image-based Electro-Optical system simulation including an end-To-end performance test is a powerful tool to characterize a camera system before it has been built. In particular, it can be used in the design phase to make an optimal trade-off between performance on the one hand and SWaPC criteria on the other. During the design process, all...
conference paper 2018
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Brouwer, A.M. (author), van de Water, L. (author), Hogervorst, M.A. (author), Kraaij, W. (author), Schraagen, J.M.C. (author), Hogenelst, K. (author)
Monitoring an individual’s mental state using unobtrusively measured signals is regarded as an essential element in symbiotic human-machine systems. However, it is not straightforward to model the relation between mental state and such signals in real life, without resorting to (unnatural) emotion induction. We recorded heart rate, facial...
conference paper 2018
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Brouwer, A.M. (author), van der Waa, J.S. (author), Hogervorst, M.A. (author), Cacace, A. (author), Stokking, H. (author)
While brain signals potentially provide us with valuable information about a user, it is not straightforward to derive and use this information to smooth man-machine interaction in a real life setting. We here propose to predict head rotation on the basis of brain signals in order to improve images presented in a Head Mounted Display (HMD)....
conference paper 2017
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Bijl, P. (author), Hogervorst, M.A. (author), Toet, A. (author)
The Triangle Orientation Discrimination (TOD) methodology includes i) a widely applicable, accurate end-to-end EO/IR sensor test, ii) an image-based sensor system model and iii) a Target Acquisition (TA) range model. The method has been extensively validated against TA field performance for a wide variety of well- and under-sampled imagers,...
conference paper 2017
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Brouwer, A.M. (author), Hogervorst, M.A. (author), Grootjen, M. (author), van Erp, J.B.F. (author), Zandstra, E.H. (author)
Neurophysiological correlates of affective experience could potentially provide continuous information about a person’s experience when cooking and tasting food, without explicitly verbalizing this. Such measures would be helpful to understand people’s implicit food preferences and choices. This study examined for the first time the relation...
article 2017
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Brouwer, A.M. (author), van der Waa, J.S. (author), Hogervorst, M.A. (author), Cacace, A. (author), Stokking, H. (author)
While brain signals potentially provide us with valuable information about a user, it is not straightforward to derive and use this information to smooth man-machine interaction in a real life setting. We here propose to predict head rotation on the basis of brain signals in order to improve images presented in a Head Mounted Display (HMD)....
conference paper 2017
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Brouwer, A.M. (author), Hogervorst, M.A. (author), Oudejans, B.A. (author), Ries, A.J. (author), Touryan, J. (author)
EEG and eye tracking variables are potential sources of information about the underlying processes of target detection and storage during visual search. Fixation duration, pupil size and event related potentials (ERPs) locked to the onset of fixation or saccade (saccade-related potentials, SRPs) have been reported to differ dependent on whether...
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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van Erp, J.B.F. (author), Hogervorst, M.A. (author), van der Werf, Y.D. (author)
Ebooks of the future may respond to the emotional experience of the reader. (Neuro-) physiological measures could capture a reader's emotional state and use this to enhance the reading experience by adding matching sounds or to change the storyline therewith creating a hybrid art form in between literature and gaming. We describe the theoretical...
article 2016
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Toet, A. (author), Hogervorst, M.A. (author)
We introduce a multiscale image fusion scheme based on guided filtering. Guided filtering can effectively reduce noise while preserving detail boundaries. When applied in an iterative mode, guided filtering selectively eliminates small scale details while restoring larger scale edges. The proposed multi-scale image fusion scheme achieves optimal...
conference paper 2016
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Hogervorst, M.A. (author), Toet, A. (author)
Previously, we presented a method for applying daytime colours to fused nighttime (e.g., intensified and LWIR) imagery (Toet and Hogervorst, Opt.Eng. 51(1), 2012). Our colour mapping not only imparts a natural daylight appearance to multiband nighttime images but also enhances the contrast and visibility of otherwise obscured details. As a...
conference paper 2016
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Brouwer, A.M. (author), Hogervorst, M.A. (author), Reuderink, B. (author), van der Werf, Y. (author), van der Erp, J.B.F. (author)
We are interested in monitoring an individual’s emotions during the reading of a novel. While physiological responses to experimentally induced emotions are often small and inconsistent, being engaged in a novel may elicit relatively strong responses. We analyzed EEG, ECG, skin conductance and respiration of 57 readers reading a complete, yet to...
article 2015
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Hogervorst, M.A. (author), Kooi, F.L. (author)
Current night-time training using (flight-, driving-) simulators is hindered by the lack of realism. Effective night-time training requires the simulation of the illusions and limitations experienced while wearing Night Vision Goggles during the night. Various methods exist that capture certain sensor effects such as noise and the characteristic...
conference paper 2014
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Bijl, P. (author), Kooi, F.L. (author), Hogervorst, M.A. (author)
End-to-end Electro-Optical system performance tests such as TOD, MRTD and MTDP require the effort of several trained human observers, each performing a series of visual judgments on the displayed output of the system. This significantly contributes to the costs of sensor testing. Currently, several synthetic human observer models exist that can...
conference paper 2014
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Brouwer, A.M. (author), Hogervorst, M.A. (author), Holewijn, M. (author), van Erp, J.B.F. (author)
Learning to master a task is expected to be accompanied by a decrease in effort during task execution. We examine the possibility to monitor learning using physiological measures that have been reported to reflect effort or workload. Thirty-five participants performed different difficulty levels of the n-back task while a range of physiological...
article 2014
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Toet, A. (author), de Jong, M.J. (author), Hogervorst, M.A. (author), Hooge, I.T.C. (author)
We recently presented a color transform that produces fused nighttime imagery with a realistic color appearance (Hogervorst & Toet, 2010, Information Fusion, 11-2, 69-77). To assess the practical value of this transform we performed two experiments in which we compared human scene recognition for monochrome intensified (II) and longwave infrared...
conference paper 2014
Searched for: author:"Hogervorst, M.A."
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