Flicker, motion artifacts, and depth distortions in stereo 3D displays
Flicker, motion artifacts, and depth distortions in stereo 3D displays
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DOI：
10.1167/12.14.1
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发表时间：
2012-12
影响因子：
1.8
通讯作者：
M. Banks
中科院分区：
文献类型：
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作者：
M. Banks
大多数立体显示器依靠场序呈现来向左眼和右眼呈现不同的图像。通过顺序呈现，图像以黑暗间隔交替传送到每只眼睛，并且每只眼睛与另一只眼睛反相接收图像。这种类型的呈现会加剧图像伪影，包括闪烁和不平滑运动的出现。为了解决闪烁问题，一些方法在更新到新图像之前多次重复图像。这极大地减少了闪烁可见性，但使运动显得不太平滑。我描述了一项关于不同演示方法如何影响闪烁、运动伪影和感知深度失真的可见性的调查。首先在时空频域中检查这些方法。通过这次检查，它描述了一系列关于呈现速率、物体速度、图像传输到两只眼睛的同时性以及其他属性如何影响闪烁、运动伪影和深度扭曲的预测。然后我报告了一系列测试这些预测的实验。结果基本上证实了所有的预测。最后，我总结并提出了一系列建议，以找到尽量减少这些不良影响的最佳方法。
Most stereoscopic displays rely on field-sequential presentation to present different images to the left and right eyes. With sequential presentation, images are delivered to each eye in alternation with dark intervals, and each eye receives its images in counter phase with the other eye. This type of presentation can exacerbate image artifacts including flicker, and the appearance of unsmooth motion. To address the flicker problem, some methods repeat images multiple times before updating to new ones. This greatly reduces flicker visibility, but makes motion appear less smooth. I describe an investigation of how different presentation methods affect the visibility of flicker, motion artifacts, and distortions in perceived depth. It begins with an examination of these methods in the spatio-temporal frequency domain. From this examination, it describes a series of predictions for how presentation rate, object speed, simultaneity of image delivery to the two eyes, and other properties ought to affect flicker, motion artifacts, and depth distortions. I then report a series of experiments that tested these predictions. The results confirmed essentially all of the predictions. I conclude with a summary and series of recommendations for the best approach to minimize these undesirable effects.