Insight into Vergence-Accommodation Mismatch.

Insight into Vergence-Accommodation Mismatch.
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DOI:
10.1117/12.2019866
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发表时间:
2013-05-16
期刊:
Proceedings of SPIE--the International Society for Optical Engineering
影响因子:
--
通讯作者:
Shibata T
Shibata T
中科院分区:
其他
文献类型:
--
作者:
Banks MS;Kim J;Shibata T

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长时间使用传统的立体显示器会引起观看者的不适和疲劳,因为趋近与调节的冲突。我们使用了一种新颖的体积显示器来研究观看距离、收敛-适应冲突的标志以及冲突的时间特性如何影响不适和疲劳。在第一个实验中,我们提出了一个固定的冲突在近,中,和长观看距离。我们比较了受试者在这种情况下和没有冲突的情况下的症状。我们观察到,在距离更远的地方,给定的收敛性冲突会带来更多的不适和疲劳。第二个实验比较了冲突在短距离、中距离和远距离上有一个标志与有相反标志时的症状。我们观察到长距离非交叉差异和短距离交叉差异的症状更严重。第三个实验比较了冲突快速变化和缓慢变化时的症状。当冲突迅速变化时,我们观察到更严重的症状。这些发现有助于为立体显示器定义舒适的观看条件。
Prolonged use of conventional stereo displays causes viewer discomfort and fatigue because of the vergence-accommodation conflict. We used a novel volumetric display to examine how viewing distance, the sign of the vergence-accommodation conflict, and the temporal properties of the conflict affect discomfort and fatigue. In the first experiment, we presented a fixed conflict at short, medium, and long viewing distances. We compared subjects’ symptoms in that condition and one in which there was no conflict. We observed more discomfort and fatigue with a given vergence-accommodation conflict at the longer distances. The second experiment compared symptoms when the conflict had one sign compared to when it had the opposite sign at short, medium, and long distances. We observed greater symptoms with uncrossed disparities at long distances and with crossed disparities at short distances. The third experiment compared symptoms when the conflict changed rapidly as opposed to slowly. We observed more serious symptoms when the conflict changed rapidly. These findings help define comfortable viewing conditions for stereo displays.
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