Only stereo information improves performance in surgical tasks

Huber, Joerg W.; Stringer, Neil; Davies, Ian; Field, David T.

doi:10.1117/12.544718

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Huber et al [1] studied the effects of stereoscopy and observer-produced motion parallax for distance judgments for tasks under associated with minimal access surgery (MAS). Results indicated that stereoptic cues confer a considerable performance advantage, while providing motion parallax information was not beneficial.…”

Section: Related Workmentioning

confidence: 99%

On the Determinants of Size-Constancy in a Virtual Environment

Luo¹,

Kenyon²,

Kamper³

et al. 2009

IJVR

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An important aspect of a subject�s perception of virtual objects in a virtual environment is whether the size of the object is perceived as it would be in the physical world, which is named size-constancy. The ability of subjects to appreciate size-constancy in an immersive virtual environment was studied while scene complexity, stereovision and motion parallax visual factors were manipulated resulting in twelve different viewing conditions. Under each visual condition, 18 subjects made size judgments of a virtual object displayed at five different distances from them. Responses from the majority of our population demonstrated that scene complexity and stereovision have a significant impact on subjects' ability to appreciate size-constancy. In contrast, motion parallax produced by moving the virtual environment or by the movements of the observer alone proved not to be a significant factor in determining size-constancy performance. Consequently, size-constancy is best obtained when scene complexity and stereovision are components of the viewing conditions.

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Section: Related Workmentioning

confidence: 99%

On the Determinants of Size-Constancy in a Virtual Environment

Luo¹,

Kenyon²,

Kamper³

et al. 2009

IJVR

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“…RELATED WORK [1] did experiments under the applied contexts of minimal access surgery (MAS) tasks, and studied the effects of stereoscopy and observer-produced motion parallax for distant judgment. Results indicated that stereoscopy confers a considerable performance advantage, while providing motion parallax information was not beneficial.…”

mentioning

confidence: 99%

The Effects of Scene Complexity, Stereovision, and Motion Parallax on Size Constancy in a Virtual Environment

Luo

Kenyon

Kamper

et al. 2007

2007 IEEE Virtual Reality Conference

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In this paper, the effects of three visual factors: scene complexity, stereovision and motion parallax on correct perception of a virtual object's size were analyzed in an immersive virtual environment. We designed a controlled experiments set to incorporate visual conditions that reflected all twelve different configuration combinations of the three visual factors. Under each visual condition, subject performed the task of making judgments of the sizes of a virtual object displayed at five different distances from him/her. A total number of eighteen subjects participated in our study. The subjects' judgments and the corresponding actual sizes of the virtual object were recorded. Based on the colleted data, two quantitative measures of subjects' performance were derived and analyzed. The results of our experiments were consistent across the majority of the subject population and suggested that scene complexity and stereovision could have significant impact on the performance of a user of virtual environments to make correct judgments on a virtual object's size. On the contrary, motion parallax, either produced by the virtual environment or by the observer, might not be a significant factor in determining that performance.

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Vision, Perception, and Object Manipulation in Virtual Environments

Kenyon

Ellis

2014

Virtual Reality Technologies for Health and Clinical Applications

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Only stereo information improves performance in surgical tasks

Cited by 3 publications

References 7 publications

On the Determinants of Size-Constancy in a Virtual Environment

On the Determinants of Size-Constancy in a Virtual Environment

The Effects of Scene Complexity, Stereovision, and Motion Parallax on Size Constancy in a Virtual Environment

Vision, Perception, and Object Manipulation in Virtual Environments

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