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9 June 2015 Glasses-free randot stereotest
Jonghyun Kim, Jong-Young Hong, Keehoon Hong, Hee Kyung Yang, Sang Beom Han, Jeong-Min Hwang, Byoungho Lee
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Journal of Biomedical Optics, Vol. 20, Issue 6, 065004 (June 2015). https://doi.org/10.1117/1.JBO.20.6.065004
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 system provides 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.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Jonghyun Kim, Jong-Young Hong, Keehoon Hong, Hee Kyung Yang, Sang Beom Han, Jeong-Min Hwang, and Byoungho Lee "Glasses-free randot stereotest," Journal of Biomedical Optics 20(6), 065004 (9 June 2015). https://doi.org/10.1117/1.JBO.20.6.065004
Published: 9 June 2015
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Cited by 6 scholarly publications.
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KEYWORDS
3D displays
Glasses
Displays
Calibration
3D image processing
Stereo holograms
Charge-coupled devices
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