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Correct focus cues in stereoscopic displays improve 3D depth perception
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2010 |
| Abstract | Many different approaches to 3D displays have been explored, most of which are stereoscopic. These kinds of displays create depth perception by presenting two perspective images— one for each eye—of a 3D scene from two slightly different viewing positions. Stereoscopic displays have dominated the technology for a range of applications, including flight simulation, scientific visualization, medicine, engineering design, education and training, and entertainment systems. For instance, a see-through, head-mounted display merges virtual views with physical scenes, enabling a physician to see a 3D rendering of anatomical structures or computer-assisted tomography images superimposed on a patient’s abdomen (see Figure 1).1 Stereoscopic displays have evolved dramatically in recent years and, in fact, have driven the rapid revival of 3D cinema. By the same token, psychophysical studies have associated a number of visual artifacts with extended use of stereoscopic displays. Examples include apparent distortion in perceived depth, visual fatigue, double vision, and delayed and slowed accommodation responses or hyperopic changes (farsightedness).2, 3 One underlying cause may be a problem inherent in these displays known as accommodation-convergence discrepancy. In conventional stereoscopic displays, pairs of images are typically presented on a 2D flat surface at a fixed distance from the viewer. The eyes are cued by the 2D images to accommodate to a fixed distance where the image planes are located. At the same time, the binocular disparity of the image pairs leads the eyes to converge towards different depths of the rendered 3D content. In other words, the natural coupling of eye accommodation and convergence in viewing a real-world scene is broken in stereoscopic displays. Moreover, unlike viewing a natural scene, in a Figure 1. Proof-of-concept demonstration of augmented reality in medical visualization.1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1117/2.1201007.003109 |
| Alternate Webpage(s) | http://www.spie.org/documents/Newsroom/Imported/003109/003109_10.pdf |
| Alternate Webpage(s) | https://doi.org/10.1117/2.1201007.003109 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
