Extended depth of field in augmented reality

Abstract The 3D display device shows an image with depth information. Conventional 3D display devices based on binocular parallax can focus accurately only on the depth of a specific screen. Because the human eye has a narrow depth of field (DOF) under normal circumstances, 3D displays that provide...

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Main Authors: Sung Kyu Kim, Yongjoon Kwon, Ki-Hyuk Yoon
Format: Article
Language:English
Published: Nature Portfolio 2023-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-35819-9
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author Sung Kyu Kim
Yongjoon Kwon
Ki-Hyuk Yoon
author_facet Sung Kyu Kim
Yongjoon Kwon
Ki-Hyuk Yoon
author_sort Sung Kyu Kim
collection DOAJ
description Abstract The 3D display device shows an image with depth information. Conventional 3D display devices based on binocular parallax can focus accurately only on the depth of a specific screen. Because the human eye has a narrow depth of field (DOF) under normal circumstances, 3D displays that provide a relatively wide range of virtual depth areas have limitations on the DOF where clear 3D images are seen. To resolve this problem, it is necessary to find the optical conditions to extend the DOF and analyze the phenomena related to it. For this, by using the Rayleigh criterion and the Strehl ratio, a criterion for this extension of the DOF is suggested. A practical optical structure that can effectively extend the DOF is devised using a flat panel display. This optical structure could be applied to AR, VR, and MR in the field of near-eye displays. From the results of this research, the fundamental optical conditions and standards are proposed for 3D displays that will provide 3D images with extended DOF in the future. Furthermore, it is also expected that these conditions and criteria can be applied to optical designs for the required performance in the development of 3D displays in various fields.
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spelling doaj.art-e814a9cabf6a439a9de8255d260f6ff32023-06-04T11:26:44ZengNature PortfolioScientific Reports2045-23222023-05-0113111510.1038/s41598-023-35819-9Extended depth of field in augmented realitySung Kyu Kim0Yongjoon Kwon1Ki-Hyuk Yoon2Center for Artificial Intelligence, Korea Institute of Science and TechnologyDepartment of Physics, Seoul Science High SchoolCenter for Artificial Intelligence, Korea Institute of Science and TechnologyAbstract The 3D display device shows an image with depth information. Conventional 3D display devices based on binocular parallax can focus accurately only on the depth of a specific screen. Because the human eye has a narrow depth of field (DOF) under normal circumstances, 3D displays that provide a relatively wide range of virtual depth areas have limitations on the DOF where clear 3D images are seen. To resolve this problem, it is necessary to find the optical conditions to extend the DOF and analyze the phenomena related to it. For this, by using the Rayleigh criterion and the Strehl ratio, a criterion for this extension of the DOF is suggested. A practical optical structure that can effectively extend the DOF is devised using a flat panel display. This optical structure could be applied to AR, VR, and MR in the field of near-eye displays. From the results of this research, the fundamental optical conditions and standards are proposed for 3D displays that will provide 3D images with extended DOF in the future. Furthermore, it is also expected that these conditions and criteria can be applied to optical designs for the required performance in the development of 3D displays in various fields.https://doi.org/10.1038/s41598-023-35819-9
spellingShingle Sung Kyu Kim
Yongjoon Kwon
Ki-Hyuk Yoon
Extended depth of field in augmented reality
Scientific Reports
title Extended depth of field in augmented reality
title_full Extended depth of field in augmented reality
title_fullStr Extended depth of field in augmented reality
title_full_unstemmed Extended depth of field in augmented reality
title_short Extended depth of field in augmented reality
title_sort extended depth of field in augmented reality
url https://doi.org/10.1038/s41598-023-35819-9
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