(1 - 20 of 64)

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Toet, A. (author)
The increasing availability of imaging sensors operating in multiple spectral bands, in combination with lenses that cover a broad spectral range and dedicated image fusion hardware has spurred the development of colour fusion schemes that aim to convey the information from these sensors to the human operator. Inspired by previously developed...
article 2018
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van den Berg-Kroon, E.C.M. (author), Martens, M.H. (author), Toet, A. (author), van der Horst, A.R.A. (author)
report 2017
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Willemse, C.J.A.M. (author), Toet, A. (author), van Erp, J.B.F. (author)
Social touch forms an important aspect of the human non-verbal communication repertoire, but is often overlooked in human–robot interaction. In this study, we investigated whether robot-initiated touches can induce physiological, emotional, and behavioral responses similar to those reported for human touches. Thirty-nine participants were...
article 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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Toet, A. (author), Bijlsma, M. (author), Brouwer, A.M. (author)
We tested the hypothesis that, either through training or selection, military personnel is more resilient to stress than civilians, as indicated by several subjective and physiological measures. In addition, we examined the effect of stress on the perceived trustworthiness of faces in these two groups. Stress was induced in 45 civilian...
article 2017
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Toet, A. (author), Brouwer, A.M. (author), van den Bosch, K. (author), Korteling, J.E. (author)
Cognitive biases and heuristics are pervasive simplifications and distortions in judgement and reasoning that systematically affect human decision making. Knowledge in this area may enable us to foresee and reduce detrimental effects of biases or to influence others more effectively. We therefore performed a literature study to assess the...
article 2016
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Toet, A. (author)
Edge preserving filters aim to simplify the representation of images (e.g., by reducing
article 2016
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Toet, A. (author), Houtkamp, J.M. (author), Vreugdenhil, P.E. (author)
This study investigated whether personal relevance influences the affective appraisal of a desktop virtual environment (VE) in simulated darkness. In the real world, darkness often evokes thoughts of vulnerability, threat, and danger, and may automatically precipitate emotional responses consonant with those thoughts (fear of darkness). This...
article 2016
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Toet, A. (author)
We have tested whether natural dynamic backgrounds affect perceived facial dominance. Facial evaluation is based on just two fundamental dimensions of facial appearance: valence and dominance. Perceived facial valence has been shown to be biased towards background valence. However, it is currently unknown, if the perception of facial dominance...
article 2016
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Schreuder, E.J.A. (author), van Erp, J.B.F. (author), Toet, A. (author), Kallen, V.L. (author)
How we perceive our environment affects the way we feel and behave. The impressions of our ambient environment are influenced by its entire spectrum of physical characteristics (e.g., luminosity, sound, scents, temperature) in a dynamic and interactive way. The ability to manipulate the sensory aspects of an environment such that people feel...
article 2016
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Toet, A. (author), Tak, S. (author), van Erp, J.B.F. (author)
Uncertainty visualizations are increasingly used in communications to the general public. A well-known example is the weather forecast. Rather than providing an exact temperature value, weather forecasts often show the range in which the temperature will lie. But uncertainty visualizations are also deployed in graphical forecasts that are used...
article 2016
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Venrooij, W. (author), Toet, A. (author), van Erp, J.B.F. (author)
Due to the recent technological advancements in data collection, transmission and storage, the amount of data that is available in private or publically accessible databases is growing exponentially. In principle this data may enable individuals and organizations to make well-informed decisions and timely adapt to changing conditions. However,...
article 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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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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Koijck, L.A. (author), Toet, A. (author), van Erp, J.B.F. (author)
Previous research has shown that odorants consistently evoke associations with textures and their tactile properties like smoothness and roughness. Also, it has been observed that olfaction can modulate tactile perception. We therefore hypothesized that tactile roughness perception may be biased towards the somatosensory connotation of an...
article 2015
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Toet, A. (author)
report 2015
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van Erp, J.B.F. (author), Toet, A. (author)
Touch is our primary non-verbal communication channel for conveying intimate emotions and as such essential for our physical and emotional wellbeing. In our digital age, human social interaction is often mediated. However, even though there is increasing evidence that mediated touch affords affective communication, current communication systems ...
article 2015
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Erk, S.M. (author), Toet, A. (author), van Erp, J.B.F. (author)
This study investigated whether communication via mediated hand pressure during a remotely shared experience (watching an amusing video) can (1) enhance recovery from sadness, (2) enhance the affective quality of the experience, and (3) increase trust towards the communication partner. Thereto participants first watched a sad movie clip to...
article 2015
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Tak, S.W. (author), Toet, A. (author), van Erp, J.B.F. (author)
Multiday weather forecasts often include graphical representations of uncertainty. However, visual representations of probabilistic events are often misinterpreted by the general public. Although various uncertainty visualizations are now in use, the parameters that determine their successful deployment are still unknown. At the same time, a...
article 2015
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van Erp, J.B.F. (author), Toet, A. (author), Janssen, J.B. (author)
Multi-sensory warnings can potentially enhance risk communication. Hereto we investigated how temporal signal parameters affect perceived urgency within and across modalities. In an experiment, 78 observers rated the perceived urgency of uni-, bi-, and/or tri-modal stimuli as function of 25 combinations of pulse duration (range 100–1600 ms) and...
article 2015
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