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- Title
Glasses-free randot stereotest.
- Authors
Jonghyun Kim; Jong-Young Hong; Keehoon Hong; Hee Kyung Yang; Sang Beom Han; Jeong-Min Hwang; Byoungho Lee
- Abstract
We proposed a glasses-free randot stereotest using a multiview display system. We designed a four-view parallax barrier system and proposed the use of a random-dot multigram as a set of view images for the glasses-free randot stereotest. The glasses-free randot stereotest can be used to verify the effect of glasses in a stereopsis experience. Furthermore, the proposed system is convertible between two-view and four-view structures so that the motion parallax effect could be verified within the system. We discussed the design principles and the method used to generate images in detail and implemented a glasses-free randot stereotest system with a liquid crystal display panel and a customized parallax barrier. We also developed graphical user interfaces and a method for their calibration for practical usage. We performed experiments with five adult subjects with normal vision. The experimental results show that the proposed systemprovides a stereopsis experience to the subjects and is consistent with the glasses-type randot stereotest and the Frisby--Davis test. The implemented system is free from monocular cues and provides binocular disparity only. The crosstalk of the system is about 6.42% for four-view and 4.17% for two-view, the time required for one measurement is less than 20 s, and the minimum angular disparity that the system can provide is about 23 arc sec.
- Subjects
STEREOGRAMS; LIQUID crystal displays; GRAPHICAL user interfaces; THREE-dimensional imaging; USER interfaces
- Publication
Journal of Biomedical Optics, 2015, Vol 20, Issue 6, p1
- ISSN
1083-3668
- Publication type
Article
- DOI
10.1117/1.JBO.20.6.065004