Stereo display with time-multiplexed focal adjustment.
Stereo display with time-multiplexed focal adjustment.
复制标题
具有时分复用焦点调节功能的立体显示。
DOI：
10.1117/12.807170
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Banks,MartinS
中科院分区：
文献类型：
--
作者：
Hoffman,DavidM;Hands,PhilipJW;Kirby,AndrewK;Love,GordonD;Banks,MartinS
在立体显示器中，双眼的视差产生了深刻的印象。然而，这样的显示所呈现的焦点线索——模糊和调节——指定了与视差不同的深度，从而导致冲突。这种冲突会导致一些问题，包括对3D布局的误解，难以融合双眼图像以及视觉疲劳。为了解决这些问题，我们开发了一种显示器，它保留了传统立体显示器的优点，同时显示正确或接近正确的焦点线索。在我们的新立体显示器中，每只眼睛都通过一个镜头来观看显示器，这个镜头可以在四个焦距之间以非常高的速度切换。开关与显示器同步，因此焦距和在显示器上模拟的距离彼此一致或几乎一致。四个焦平面之间点的焦点线索通过使用深度加权混合技术进行模拟。我们将描述新显示器的设计，讨论它在各种条件下形成的视网膜图像，并描述一个实验，说明显示器在最大化视觉性能的同时最小化视觉疲劳的有效性。
In stereo displays, binocular disparity creates a striking impression of depth. However, such displays present focus cues-blur and accommodation-that specify a different depth than disparity, thereby causing a conflict. This conflict causes several problems including misperception of the 3D layout, difficulty fusing binocular images, and visual fatigue. To address these problems, we developed a display that preserves the advantages of conventional stereo displays, while presenting correct or nearly correct focus cues. In our new stereo display each eye views a display through a lens that switches between four focal distances at very high rate. The switches are synchronized to the display, so focal distance and the distance being simulated on the display are consistent or nearly consistent with one another. Focus cues for points in--between the four focal planes are simulated by using a depth-weighted blending technique. We will describe the design of the new display, discuss the retinal images it forms under various conditions, and describe an experiment that illustrates the effectiveness of the display in maximizing visual performance while minimizing visual fatigue.