Head-mounted displays (HMDs) allow users to observe virtual environments (VEs) from an egocentric perspective. In order to present a realistic stereoscopic view, the rendering system has to be adjusted to the characteristics of the HMD, e. g., the ...

Previous research, which has used images of real human faces and mostly from the same facial expression database [Matsumoto and Ekman 1988], has shown that individuals perceive emotions universally across cultures. We conducted an experiment to ...

When developing our Immersive Virtual Environment Rehabilitation Treadmill (IVERT) system (Figure 1), we observed the well known phenomenon of visuals feeling "too slow" compared to walking speed (Durgin 2005). The work reported here was motivated by ...

[Thurrell et al. 1998] first observed that the perceived speed of optic flow decreases in linear proportion to the increasing physical speed of locomotion on a treadmill and proposed this as a mechanism to discount from the visual signal retinal motion ...

There has been a substantial amount of research on two different but related problems: estimating distances of perceived objects ("how far away is that thing?") and estimating traveled distance ("how far did I just walk?"). For instance, Lappe et al [...

Although moving auditory cues have long been known to induce self-motion illusions ("circular vection") in blindfolded participants, little is known about how spatial sound can facilitate or interfere with vection induced by other non-visual modalities ...

Virtual Reality prototyping can be used early in a design process, in order to question observers about the aesthetics of future vehicles, without the need for physical mock-ups. However, it is suspected that numerical display formats and solutions are ...

In this paper we describe an apparatus and experiment that measured depth judgments in augmented reality at near-field distances of 34 to 50 centimeters. The experiment compared perceptual matching, a closed-loop task for measuring depth judgments, with ...

Spatial awareness is crucial for human performance efficiency of any task that entails perception of space. Memory of spaces is an imperfect reflection of the cognitive activity (awareness states) that underlies performance in such environments. ...

Perception of an accurate sense of the scale depicted in computer graphics is important for many applications. How to best characterize the accuracy of space perception in computer graphics is a question that does not have a simple answer. This paper ...

Optical see-through devices enable observers to see additional information embedded in real environments. There is already some evidence of increasing visual load in respective systems. We investigated visual performance when users performed visual ...

In order to perform daily maintenance and repair tasks in complex electrical and mechanical systems, technicians commonly utilize a large number of diagrams and documents detailing system properties in both electronic and print formats. In electronic ...