Estimation of Virtually Perceived Length

Keyson, David V.

doi:10.1162/105474600566899

Cited by 8 publications

(3 citation statements)

References 11 publications

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“…In RE, the processing unit can quickly select the optimal response way based on practical experience. However, it is more difficult to accurately estimate the position of a virtual object in low-fidelity VE (Arthur et al, 1997;Witmer and Kline, 1998;Keyson, 2000;Armbrüster et al, 2008). Without practical experience, the cognitive cycle from the visual module to the processing unit to the manual module must be repeated many times (trials) while subjects are performing their tasks.…”

Section: Discussionmentioning

confidence: 99%

Predicting real-world ergonomic measurements by simulation in a virtual environment

Zhang

et al. 2011

International Journal of Industrial Ergonomics

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Section: Discussionmentioning

confidence: 99%

Predicting real-world ergonomic measurements by simulation in a virtual environment

Zhang

et al. 2011

International Journal of Industrial Ergonomics

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“…Thus, feedback within a VE may cause visually-directed distance judgments to be veridical but it is unknown how feedback affects spatial perception. While the effect of feedback within personal space (within 2 meters) on spatial perception has recently been explored [Bingham and Pagano 1998;Keyson 2000;Magne and Coello 2002;Bingham et al 2004], more research is needed that investigates the effect of feedback on spatial perception in action space (2-25 meters). Investigating this topic will be useful since many potential VE applications require that a person perform tasks in action space.…”

Section: Introductionmentioning

confidence: 99%

The influence of feedback on egocentric distance judgments in real and virtual environments

Mohler

Creem-Regehr

Thompson

2006

Proceedings of the 3rd Symposium on Applied Perception in Graphics and Visualization

130

119

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A number of investigators have reported that distance judgments in virtual environments (VEs) are systematically smaller than distance judgments made in comparably-sized real environments. Many variables that may contribute to this difference have been investigated but none of them fully explain the distance compression. One approach to this problem that has implications for both VE applications and the study of perceptual mechanisms is to examine the influence of the feedback available to the user. Most generally, we asked whether feedback within a virtual environment would lead to more accurate estimations of distance. Next, given the prediction that some change in behavior would be observed, we asked whether specific adaptation effects would generalize to other indications of distance. Finally, we asked whether these effects would transfer from the VE to the real world. All distance judgments in the head-mounted display (HMD) became near accurate after three different forms of feedback were given within the HMD. However, not all feedback sessions within the HMD altered real world distance judgments. These results are discussed with respect to the perceptual and cognitive mechanisms that may be involved in the observed adaptation effects as well as the benefits of feedback for VE applications.

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“…Modeling a virtual environment allows us to separate the studied independent variable from side effects and provide more stringent control of variables, which is not always possible to do in real conditions. In published studies, the subject's perception of the testee was such properties of virtual objects and virtual environment as the length of a virtually simulated distance traveled [2], the length of objects [3], size [4], stiffness [5], texture [6], depth [7] , weight [8]. The goal of many studies, including subjects' reports on perception in a virtual environment, is to develop technologies to bring the perceptual characteristics of the virtual environment closer to the real one, to make the boundary between these environments "invisible" [7], [9].…”

Section: Perception Of the Characteristics Of A Virtual Environment A...mentioning

confidence: 99%

An Experimental Study of Perception by Preschoolers: The Computer Models of Real Objects as Three-Dimensional on the Screens of Touchscreen Devices

Krylova¹,

Vodyaha²

2020

Proceedings of the International Scientific Conference “Digitalization of Education: History, Trends and Prospects” (DETP 2020)

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The experimental study presented in the article is the first in our series of experiments aimed at testing the hypothesis that children rely on the characteristics of real physical objects known to them when they perceive computer models of these objects (virtual objects). The dimension was chosen as the first investigated characteristic. Dimension is an amodal characteristic, that is, it can be perceived on the basis of sensory information of various modality (visual or haptic). A pilot experimental study was conducted to test the hypothesis: do children of preschool age perceive virtual three-dimensional objects as three-dimensional when acting on them on a tablet computer screen (on a two-dimensional surface). The experiment was attended by 20 children aged 4-5 years. Each child participated in five experimental tests: the main test 1 -actions (moving by touching) with a virtual volumetric object on the tablet computer screen, sample 2 -viewing the image of a volumetric object on the tablet computer screen without performing actions with it. Three additional tests with real volumetric objects (visual, haptic, visual-haptic) were also performed to assess the perceptual development of children. After each test, the children were offered, on the basis of only haptic information, to choose a reference object among four objects: two threedimensional and two flat. 94.1% of children who successfully identified real objects identified the virtual object after sample 1 as three-dimensional, despite the effect of the mismatch between visual and haptic information. The results are consistent with the idea of the optimal integration of visual and haptic information in the perception of the size and shape of three-dimensional objects by giving more weight to more reliable information. In sample 2, in the absence of the possibility of action with the image on the tablet computer screen, the number of errors associated with the recognition of a virtual three-dimensional object as three-dimensional significantly increased (33.3%).

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Estimation of Virtually Perceived Length

Cited by 8 publications

References 11 publications

Predicting real-world ergonomic measurements by simulation in a virtual environment

Predicting real-world ergonomic measurements by simulation in a virtual environment

The influence of feedback on egocentric distance judgments in real and virtual environments

An Experimental Study of Perception by Preschoolers: The Computer Models of Real Objects as Three-Dimensional on the Screens of Touchscreen Devices

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