(1 - 20 of 28)

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Hogervorst, M.A. (author), Toet, A. (author), Jacobs, P. (author), TNO Defensie en Veiligheid (author)
An international group consisting of several NATO nations participated in a trial in which urban camouflage was developed and compared. First, photographs were taken in and around a small town (arid climate). Next, the different groups derived urban camouflage patterns from these photographs. We applied our method for deriving a camouflage...
conference paper 2010
document
Toet, A. (author), van der Spek, E.D. (author), Houtkamp, J.M. (author)
We investigated if cybersickness has an effect on the affective appraisal of a virtual environment (VE). For many applications it is essential that users experience the simulated environment in a similar way as the corresponding real one. Navigation through VEs is known to negatively influence the physical well-being of observers by inducing...
article 2010
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Toet, A. (author), Hogervorst, M.A. (author), TNO Defensie en Veiligheid (author)
bookPart 2010
document
Toet, A. (author), TNO Defensie en Veiligheid (author)
New methods to automatically generate virtual character movements. GATE - Overview of activities 2007-2010 - Looking at the future of games
article 2010
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Smeets, M.A.M. (author), de Groot, J. (author), Kaldewaij, A. (author), Toet, A. (author), van Doornen, L. (author), TNO Defensie en Veiligheid (author)
conference paper 2010
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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
document
Toet, A. (author)
bookPart 2011
document
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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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
In this study, the authors investigated how restriction of the vertical viewing angle influences obstacle-crossing behavior. Twelve participants stepped over obstacles of different dimensions while wearing visual-field-restricting goggles. Using full-body motion capture, several kinematic measures were extracted and analyzed. Results indicate...
article 2011
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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
conference paper 2011
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Toet, A. (author)
The structural image similarity index (SSIM), introduced by Wang and Bovik (IEEE Signal Processing Letters 9-3, pp. 81-84, 2002) measures the similarity between images in terms of luminance, contrast en structure. It has successfully been deployed to model human visual perception of image distortions and modifications in a wide range of...
conference paper 2011
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Smeets, M.A.M. (author), Toet, A. (author), Duinkerken, R. (author), de Groot, J. (author), Kaldewaij, A. (author), van den Hout, M.A. (author)
Females evaluate ambiguous facial expression – morphed between happy and fearful – faces as more fearful when exposed to fear sweat as compared to control odor (Zhou & Chen, 2009). We investigated the specificity of this effect, i.e. whether processing of fearful faces is affected specifically by fear sweat. In Study 1, we investigated the...
conference paper 2011
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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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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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