Visual realism enhances realistic response in an immersive virtual environment – Part 2

Yu, Insu; Mortensen, Jørgen Birk; Khanna, Pankaj; Slater, Mel

doi:10.1109/mcg.2011.69

Cited by 17 publications

(18 citation statements)

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“…The impact of visual realism in VR is often controversial. There are studies that reported significant differences in terms of behaviour or presence [9,31,49], and those who did not find conclusive evidence [17,44,52]. Differently from past work, our study has confronted participants with choices that depended entirely on their correct interpretation of the visual stimuli.…”

Section: Implications For Designmentioning

confidence: 80%

Altering User Movement Behaviour in Virtual Environments

Simeone

Mavridou

Powell

2017

IEEE Trans. Visual. Comput. Graphics

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In immersive Virtual Reality systems, users tend to move in a Virtual Environment as they would in an analogous physical environment. In this work, we investigated how user behaviour is affected when the Virtual Environment differs from the physical space. We created two sets of four environments each, plus a virtual replica of the physical environment as a baseline. The first focused on aesthetic discrepancies, such as a water surface in place of solid ground. The second focused on mixing immaterial objects together with those paired to tangible objects. For example, barring an area with walls or obstacles. We designed a study where participants had to reach three waypoints laid out in such a way to prompt a decision on which path to follow based on the conflict between the mismatching visual stimuli and their awareness of the real layout of the room. We analysed their performances to determine whether their trajectories were altered significantly from the shortest route. Our results indicate that participants altered their trajectories in presence of surfaces representing higher walking difficulty (for example, water instead of grass). However, when the graphical appearance was found to be ambiguous, there was no significant trajectory alteration. The environments mixing immaterial with physical objects had the most impact on trajectories with a mean deviation from the shortest route of 60 cm against the 37 cm of environments with aesthetic alterations. The co-existance of paired and unpaired virtual objects was reported to support the idea that all objects participants saw were backed by physical props. From these results and our observations, we derive guidelines on how to alter user movement behaviour in Virtual Environments.

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Section: Implications For Designmentioning

confidence: 80%

Altering User Movement Behaviour in Virtual Environments

Simeone

Mavridou

Powell

2017

IEEE Trans. Visual. Comput. Graphics

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“…Interestingly, this compares strongly with results from other work. In particular the combined experiments of Slater et al [19] and Yu et al [20] who also found that some form of advanced graphics based on reflections and shadows (similar to WH) provided an enhanced experience compared to the basic rendering, however no differences were found with the more advanced full global illumination results.…”

Section: Discussionmentioning

confidence: 99%

“…In a follow up experiment [20] the authors found different results when adding global illumination and no significant differences were found, suggesting that the main, earlier, difference was due to the dynamic shadows and reflections.…”

Section: B Evaluations Of Rendering At Different Qualitiesmentioning

confidence: 93%

Subjective Evaluation of High-Fidelity Virtual Environments for Driving Simulations

Debattista

Bashford-Rogers

Harvey

et al. 2018

IEEE Trans. Human-Mach. Syst.

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“…But is realistic rendering really required for presence? There have been studies on visual realism affecting presence from the point of view of the environment under different illumination models [32]. From those studies it appears that what matters is the dynamics of the illumination model, i.e.…”

Section: Crowd Simulation Methodsmentioning

confidence: 99%

Feeling crowded yet?: crowd simulations for VR

Pelechano

Allbecky

2016

2016 IEEE Virtual Humans and Crowds for Immersive Environments (VHCIE)

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With advances in virtual reality technology and its multiple applications, the need for believable, immersive virtual environments is increasing. Even though current computer graphics methods allow us to develop highly realistic virtual worlds, the main element failing to enhance presence is autonomous groups of human inhabitants. A great number of crowd simulation techniques have emerged in the last decade, but critical details in the crowd's movements and appearance do not meet the standards necessary to convince VR participants that they are present in a real crowd. In this paper, we review recent advances in the creation of immersive virtual crowds and discuss areas that require further work to turn these simulations into more fully immersive and believable experiences.

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Visual realism enhances realistic response in an immersive virtual environment – Part 2

Cited by 17 publications

References 0 publications

Altering User Movement Behaviour in Virtual Environments

Altering User Movement Behaviour in Virtual Environments

Subjective Evaluation of High-Fidelity Virtual Environments for Driving Simulations

Feeling crowded yet?: crowd simulations for VR

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