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Toet, A. (author), Tak, S. (author)
Previous research has shown that perceived facial valence is biased toward background valence. Here, we examine whether background dominance also affects perceived facial dominance. In particular, we hypothesized that downward-pointing triangles, which are known to convey threat, would affect perceived facial dominance. Participants judged...
article 2013
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van Erp, J.B.F. (author), Toet, A. (author)
Touch is an essential channel in interpersonal and affective communication, yet most social agents currently lack the capability to touch the user. In this paper we show the credibility of three premises that make the case that providing touch capability to social robots will increase their effectiveness in communicating emotions, building trust...
conference paper 2013
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Toet, A. (author), Houtkamp, J.M. (author), van der Meulen, R. (author)
We investigated whether manipulation of visual and auditory depth and speed cues can affect a user’s sense of risk for a low-cost nonimmersive virtual environment (VE) representing a highway environment with traffic incidents. The VE is currently used in an examination program to assess procedural knowledge of highway patrol officers. In its...
article 2013
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Hogervorst, M.A. (author), Toet, A. (author), Bijl, P. (author)
We investigate how human visual search performance with field of view (FOV) restrictions depends on scan speed, zoom factor, target location, and conspicuity. First, observers search a FOV that moves at a constant speed along a predefined path over a visual search scene (the field of regard, or FOR), and we measure the effects of scan speed,...
article 2013
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Toet, A. (author), van Erp, J.B.F. (author), Petrignani, F.F. (author), Dufrasnes, M.H. (author), Sahhashivan, A. (author)
We present the design of a haptic computer accessory that adds the experience of touch to online conversations. It enables dyads to exchange the physical experience of holding hands regardless of distance and location. Text, speech and video communication systems support the transmission of several nonverbal affective aspects of communication...
conference paper 2013
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Toet, A. (author), Hogervorst, M.A. (author)
We present a new method to derive a multiscale urban camouflage pattern from a given set of background image samples. We applied this method to design a camouflage pattern for a given (semi-arid) urban environment. We performed a human visual search experiment and a computational evaluation study to assess the effectiveness of this multiscale...
article 2013
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Tak, S. (author), Toet, L. (author)
Despite the availability of a broad range of newly developed multisensory displays and interaction techniques, multisensory interactive data representations are still not widely used. We argue that for complex information analysis multisensory data representations and multimodal interactivity are essential. By leveraging the benefits of the...
conference paper 2013
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Tak, S. (author), Brouwer, A.M. (author), Toet, A. (author), van Erp, J.B.F. (author)
User-adaptive visualization aims to adapt visualized information to the needs and characteristics of the individual user. Current approaches deploy user personality factors, user behavior and preferences, and visual scanning behavior to achieve this goal. We argue that neurophysiological data provide valuable additional input for user-adaptive...
conference paper 2013
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Toet, A. (author), Tak, S. (author)
We investigated if simulated social disorder affects perceived facial valence in a desktop virtual environment. Both in real and virtual imagery signs of disorder negatively bias perceived facial valence.
conference paper 2013
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Toet, A. (author), Alferdinck, J.W.A.M. (author)
In this study we investigated the effectiveness of high power illuminators that are intended to be used as warning devices or non-lethal weapons to deny car drivers their view on the outside world through windscreens. The test is based on a measurement of the amount of veiling glare resulting when a high intensity light source hits a windscreen....
conference paper 2013
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Houtkamp, J.M. (author), Toet, A. (author), Bos, F.A. (author)
The authors added task-relevant sounds to a computer-mediated instructor in-the-loop virtual training for firefighter commanders in an attempt to raise the engagement and arousal of the users. Computer-mediated training for crew commanders should provide a sensory experience that is sufficiently intense to make the training viable and effective....
article 2012
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Houtkamp, J.M. (author), Toet, A. (author)
bookPart 2012
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Toet, A. (author), Hogervorst, M.A. (author)
We present an overview of our recent progress and the current state-of-the-art techniques of color image fusion for night vision applications. Inspired by previously developed color opponent fusing schemes, we initially developed a simple pixel-based false color-mapping scheme that yielded fused false color images with large color contrast and...
article 2012
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Garcia, J.A. (author), Rodriguez-Sánchez, R. (author), Fdez-Valdivia, J. (author), Toet, A. (author)
The objective of image fusion is to represent relevant information from multiple individual images in a single image. Some fusion methods may represent important visual information more distinctively than others, thereby conveying it more efficiently to the human observer. Here, we propose to rank order images fused by different methods...
article 2012
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Toet, A. (author)
A real-time mapping technique enables full-color rendering of multi-spectral nighttime images, making them as clear and colorful as daylight ones
article 2012
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Toet, A. (author), Tak, S. (author), Lucassen, M.P. (author), Gevers, T. (author)
conference paper 2012
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Beintema, J.A. (author), Toet, A. (author), de Vries, S.J. (author)
The construction and validation of soldier combat models requires data on the conspicuity of camouflaged targets in the field, and human targets in particular. So far, this data is lacking. Also, it si currently unknown to what degree luminance contrast and motion contribute to target conspicuity. These data are needed to enable the validation...
conference paper 2011
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Toet, A. (author)
bookPart 2011
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Toet, A. (author)
The predictions of 13 computational bottom-up saliency models and a newly introduced Multiscale Contrast Conspicuity (MCC) metric are compared with human visual conspicuity measurements. The agreement between human visual conspicuity estimates and model saliency predictions is quantified through their rank order correlation. The maximum of the...
article 2011
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Toet, A. (author), Henselmans, M. (author), Lucassen, M.P. (author), Gevers, T. (author)
This study explores the effects of various spatiotemporal dynamic texture characteristics on human emotions. The emotional experience of auditory (eg, music) and haptic repetitive patterns has been studied extensively. In contrast, the emotional experience of visual dynamic textures is still largely unknown, despite their natural ubiquity and...
article 2011
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