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Instability of the perceived world while watching 3D stereoscopic imagery: A likely source of motion sickness symptoms.

Hwang AD, Peli E - Iperception (2014)

Bottom Line: Numerous studies have reported motion-sickness-like symptoms during stereoscopic viewing, but no causal linkage between specific aspects of the presentation and the induced discomfort has been explicitly proposed.Here, we describe several causes, in which stereoscopic capture, display, and viewing differ from natural viewing resulting in static and, importantly, dynamic distortions that conflict with the expected stability and rigidity of the real world.This analysis provides a basis for suggested changes to display systems that may alleviate the symptoms, and suggestions for future studies to determine the relative contribution of the various effects to the unpleasant symptoms.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA; e-mail: alex_hwang@meei.harvard.edu.

ABSTRACT
Watching 3D content using a stereoscopic display may cause various discomforting symptoms, including eye strain, blurred vision, double vision, and motion sickness. Numerous studies have reported motion-sickness-like symptoms during stereoscopic viewing, but no causal linkage between specific aspects of the presentation and the induced discomfort has been explicitly proposed. Here, we describe several causes, in which stereoscopic capture, display, and viewing differ from natural viewing resulting in static and, importantly, dynamic distortions that conflict with the expected stability and rigidity of the real world. This analysis provides a basis for suggested changes to display systems that may alleviate the symptoms, and suggestions for future studies to determine the relative contribution of the various effects to the unpleasant symptoms.

No MeSH data available.


Related in: MedlinePlus

Schematics of stereoscopic scene capture methods. (a) Capture with vergence. (b) Capture without vergence (parallel). The distance between the two cameras is assumed to be 0.06 m, objects O1–O9 are placed on a 1 m grid, and the distance to the first row of the grid from the camera/viewpoint plane is 2 m, as in Figure 2. Diagrams are not to scale. The sensors in the camera are assumed to be placed perpendicular to the camera-aiming direction.
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Figure 6: Schematics of stereoscopic scene capture methods. (a) Capture with vergence. (b) Capture without vergence (parallel). The distance between the two cameras is assumed to be 0.06 m, objects O1–O9 are placed on a 1 m grid, and the distance to the first row of the grid from the camera/viewpoint plane is 2 m, as in Figure 2. Diagrams are not to scale. The sensors in the camera are assumed to be placed perpendicular to the camera-aiming direction.

Mentions: To generate two different views, two cameras (in real-world video) or two viewpoints (in computer graphics) are typically used to capture/render corresponding left and right eyes scenes. Whether it is real-world video recording or computer rendering, there are two common scene capturing configurations (Mendiburu, 2012): one with vergence (converged-axes or “toe-in” stereoscopic imaging) and the other without vergence (parallel-axis stereoscopic imaging) (Figure 6).


Instability of the perceived world while watching 3D stereoscopic imagery: A likely source of motion sickness symptoms.

Hwang AD, Peli E - Iperception (2014)

Schematics of stereoscopic scene capture methods. (a) Capture with vergence. (b) Capture without vergence (parallel). The distance between the two cameras is assumed to be 0.06 m, objects O1–O9 are placed on a 1 m grid, and the distance to the first row of the grid from the camera/viewpoint plane is 2 m, as in Figure 2. Diagrams are not to scale. The sensors in the camera are assumed to be placed perpendicular to the camera-aiming direction.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4441027&req=5

Figure 6: Schematics of stereoscopic scene capture methods. (a) Capture with vergence. (b) Capture without vergence (parallel). The distance between the two cameras is assumed to be 0.06 m, objects O1–O9 are placed on a 1 m grid, and the distance to the first row of the grid from the camera/viewpoint plane is 2 m, as in Figure 2. Diagrams are not to scale. The sensors in the camera are assumed to be placed perpendicular to the camera-aiming direction.
Mentions: To generate two different views, two cameras (in real-world video) or two viewpoints (in computer graphics) are typically used to capture/render corresponding left and right eyes scenes. Whether it is real-world video recording or computer rendering, there are two common scene capturing configurations (Mendiburu, 2012): one with vergence (converged-axes or “toe-in” stereoscopic imaging) and the other without vergence (parallel-axis stereoscopic imaging) (Figure 6).

Bottom Line: Numerous studies have reported motion-sickness-like symptoms during stereoscopic viewing, but no causal linkage between specific aspects of the presentation and the induced discomfort has been explicitly proposed.Here, we describe several causes, in which stereoscopic capture, display, and viewing differ from natural viewing resulting in static and, importantly, dynamic distortions that conflict with the expected stability and rigidity of the real world.This analysis provides a basis for suggested changes to display systems that may alleviate the symptoms, and suggestions for future studies to determine the relative contribution of the various effects to the unpleasant symptoms.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA; e-mail: alex_hwang@meei.harvard.edu.

ABSTRACT
Watching 3D content using a stereoscopic display may cause various discomforting symptoms, including eye strain, blurred vision, double vision, and motion sickness. Numerous studies have reported motion-sickness-like symptoms during stereoscopic viewing, but no causal linkage between specific aspects of the presentation and the induced discomfort has been explicitly proposed. Here, we describe several causes, in which stereoscopic capture, display, and viewing differ from natural viewing resulting in static and, importantly, dynamic distortions that conflict with the expected stability and rigidity of the real world. This analysis provides a basis for suggested changes to display systems that may alleviate the symptoms, and suggestions for future studies to determine the relative contribution of the various effects to the unpleasant symptoms.

No MeSH data available.


Related in: MedlinePlus