The rate of change of vergence-accommodation conflict affects visual discomfort.
The rate of change of vergence-accommodation conflict affects visual discomfort.
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DOI：
10.1016/j.visres.2014.10.021
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发表时间：
2014-12
期刊：
影响因子：
1.8
通讯作者：
Banks, Martin S.
中科院分区：
文献类型：
--
作者：
Kim, Joohwan;Kane, David;Banks, Martin S.
立体(S3D)显示在眼睛必须会聚的距离和眼睛必须容纳的距离之间产生冲突。这样的冲突要求观众克服聚焦和适应之间的正常耦合，而这种努力似乎会导致观众的不适。收敛-调节耦合是由基础控制系统的阶段组件驱动的，这些组件对收敛和调节刺激的相对较快的变化做出反应。鉴于相位变化和收敛-调节耦合之间的关系，我们研究了收敛-调节冲突的变化率如何影响观看者的不适感。我们使用了立体显示器，允许独立操纵刺激来收敛和调节。我们提供了模拟自然视觉的刺激(即，聚光和调节刺激一起改变)和模拟S3D观看的刺激(即，聚光刺激改变，但调节刺激保持不变)。这些变化发生在0.01、0.05或0.25赫兹。最低的速率太慢，不能刺激相位分量，而最高的速率正好在相位范围内。结果与我们的预期一致：当刺激距离迅速改变时，尤其是在S3D观看中，当聚焦刺激改变而调节性刺激没有改变时，会体验到更大的不适感。这些结果可能有助于生成用于创建和观看具有可接受观众舒适度的立体声内容的指导方针。
Stereoscopic (S3D) displays create conflicts between the distance to which the eyes must converge and the distance to which the eyes must accommodate. Such conflicts require the viewer to overcome the normal coupling between vergence and accommodation, and this effort appears to cause viewer discomfort. Vergence-accommodation coupling is driven by the phasic components of the underlying control systems, and those components respond to relatively fast changes in vergence and accommodative stimuli. Given the relationship between phasic changes and vergence-accommodation coupling, we examined how the rate of change in the vergence-accommodation conflict affects viewer discomfort. We used a stereoscopic display that allows independent manipulation of the stimuli to vergence and accommodation. We presented stimuli that simulate natural viewing (i.e., vergence and accommodative stimuli changed together) and stimuli that simulate S3D viewing (i.e., vergence stimulus changes but accommodative stimulus remains fixed). The changes occurred at 0.01, 0.05, or 0.25Hz. The lowest rate is too slow to stimulate the phasic components while the highest rate is well within the phasic range. The results were consistent with our expectation: somewhat greater discomfort was experienced when stimulus distance changed rapidly, particularly in S3D viewing when the vergence stimulus changed but the accommodative stimulus did not. These results may help in the generation of guidelines for the creation and viewing of stereo content with acceptable viewer comfort.
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影响因子：
3.8
作者：
Love GD;Hoffman DM;Hands PJ;Gao J;Kirby AK;Banks MS
通讯作者：
Banks MS
影响因子：
1.8
作者：
Hillis, JM;Banks, MS
通讯作者：
Banks, MS
DOI：
10.3758/bf03204187
发表时间：
1982-01-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
EBENHOLTZ, SM;FISHER, SK
通讯作者：
FISHER, SK
影响因子：
3.8
作者：
Ravikumar, Sowmya;Akeley, Kurt;Banks, Martin S.
通讯作者：
Banks, Martin S.
影响因子：
1.8
作者：
SCHOR, CM;KOTULAK, JC
通讯作者：
KOTULAK, JC