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Extended depth of field in augmented reality
Sung Kyu Kim1, Yongjoon Kwon2, Ki-Hyuk Yoon3
1Center for Artificial Intelligence, Korea Institute of Science and Technology, Seoul, 136-791, South Korea. kkk@kist.re.kr.
Scientific Reports
|May 31, 2023
Summary
This study proposes optical conditions to extend the depth of field (DOF) for 3D displays. A novel optical structure using flat panel displays enhances clarity in augmented reality (AR), virtual reality (VR), and mixed reality (MR).
Area of Science:
- Optics and Photonics
- Display Technology
- Human-Computer Interaction
Background:
- Conventional 3D displays using binocular parallax have limited depth of field (DOF), restricting clear image viewing to specific screen depths.
- The narrow DOF of the human eye exacerbates limitations in 3D displays aiming for wide virtual depth areas.
Purpose of the Study:
- To identify optical conditions and phenomena for extending the DOF in 3D display devices.
- To propose fundamental optical standards for future 3D displays with enhanced DOF.
Main Methods:
- Utilized the Rayleigh criterion and Strehl ratio to establish a criterion for DOF extension.
- Devised a practical optical structure for DOF extension using a flat panel display.
Main Results:
- A criterion for extending the DOF in 3D displays was suggested based on optical principles.
- A novel optical structure capable of effectively extending DOF was developed using flat panel technology.
Conclusions:
- The proposed optical conditions and criteria provide a foundation for developing 3D displays with extended DOF.
- The developed optical structure is applicable to near-eye displays in AR, VR, and MR, with potential for broader optical design applications.
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