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Optical Imaging and 3D Display Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: 20 September 2026 | Viewed by 3071

Special Issue Editors


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Guest Editor
School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Interests: 3D display; 3D data security
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
Interests: 3D display; 3D data security; imaging processing; multimedia security; computational imaging
Special Issues, Collections and Topics in MDPI journals
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China
Interests: 3D display; 3D data security
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

New technologies for three-dimensional (3D) imaging and displays, 3D security, and 3D interaction have been pursued by scientists and engineers for decades. Three-dimensional imaging and displays are used in a wide range of applications, including education, healthcare, manufacturing, augmented reality, interaction, security, and more. This Special Issue focuses on 3D imaging displays, integral imaging 3D displays, holographic displays, autostereoscopic 3D displays, 3D data security, and 3D interaction technologies.

Integral imaging has the advantages of continuous viewpoint, full parallax, and no visual fatigue. It has been revived in the last decade as a promising method for massive 3D commercialization. Holographic display is based on the interference and diffraction of light to create 3D images. Autostereoscopic 3D displays employ the lenticular lens array to present a 3D source and and reconstruct a 3D image based on the principle of binocular parallax. Three-dimensional displays have been extensively studied in many research areas such as education, healthcare, and entertainment. Three-dimensional data security is the process of protecting private data and preventing data loss through unauthorized access. Three-dimensional interaction technology is the use of somatosensory interaction sensors (e.g., Kinect, Leap Motion, etc.) to control 3D images. Therefore, this Special Issue aims to promote the development of 3D technologies, security, and interaction and to encourage our colleagues to share and publish their research results by submitting academic papers.

Dr. Hanle Zhang
Prof. Dr. Xiaowei Li
Dr. Yan Xing
Guest Editors

Manuscript Submission Information

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Keywords

  • integral imaging
  • holographic displays
  • autostereoscopic 3D displays
  • 3D security
  • 3D interaction techniques
  • 3D imaging and display systems
  • holographic microscopy
  • data storage

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Published Papers (2 papers)

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Research

13 pages, 12430 KB  
Article
Moiré Reduction Technique for Near-Virtual-Image-Mode Light Field Displays via Aperture Array Modification
by Koichiro Fukano, Toshiki Yura and Yasuhiro Takaki
Appl. Sci. 2025, 15(20), 11031; https://doi.org/10.3390/app152011031 - 14 Oct 2025
Viewed by 562
Abstract
Flat-panel-type light field displays can generate three-dimensional images viewable without glasses; however, they often suffer from a narrow viewing zone, low light efficiency, low resolution, and moiré artifacts. Previously, flat-panel-type light field displays with a near-virtual-image mode were proposed, comprising a lens array [...] Read more.
Flat-panel-type light field displays can generate three-dimensional images viewable without glasses; however, they often suffer from a narrow viewing zone, low light efficiency, low resolution, and moiré artifacts. Previously, flat-panel-type light field displays with a near-virtual-image mode were proposed, comprising a lens array and an aperture array; these displays offered an enhanced viewing zone, increased light efficiency, and improved resolution. In this study, a moiré reduction technique is proposed for near-virtual-image-mode light field displays. In this configuration, moiré artifacts arise from the periodic deformation of virtual subpixel images seen through the lens array, caused by the nonrectangular subpixel structures for the R, G, and B colors of the display panel. To suppress the differences in subpixel shapes, the aperture shapes in the aperture array were modified from straight to zigzag shapes. Zigzag-shaped slits were designed, and their effectiveness in reducing moiré artifacts was evaluated using a diffraction-based moiré analysis technique. Experimental results demonstrated a lower moiré contrast with the designed zigzag slit than with the conventional straight slit, confirming the effectiveness of the proposed technique. Full article
(This article belongs to the Special Issue Optical Imaging and 3D Display Technologies)
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17 pages, 19491 KB  
Article
Resolution Improvement in Near-Virtual-Image-Mode Light-Field Display Using Resolution-Priority Technique
by Koichiro Fukano, Takaaki Kudo, Toshiki Yura and Yasuhiro Takaki
Appl. Sci. 2024, 14(21), 9962; https://doi.org/10.3390/app14219962 - 31 Oct 2024
Cited by 2 | Viewed by 1801
Abstract
A light-field display with a near-virtual-image mode, which employs both a lens array and an aperture array, was previously proposed to provide a wide viewing zone angle and bright three-dimensional (3D) images. However, it is desirable to enhance its resolutions, which are presently [...] Read more.
A light-field display with a near-virtual-image mode, which employs both a lens array and an aperture array, was previously proposed to provide a wide viewing zone angle and bright three-dimensional (3D) images. However, it is desirable to enhance its resolutions, which are presently equal to those of conventional displays. Thus, we proposed a technique for increasing the resolutions of 3D images generated by the light-field display with the near-virtual-image mode. The gap between the flat-panel display and lens array is reduced to decrease the magnification of the virtual images of the pixels and to enable the observation of multiple virtual pixel images through each lens. Further, we imaged the aperture array using the lens array to eliminate the gaps between the multiple pixels observed through adjacent lenses. We constructed a prototype display based on the proposed technique and verified the increase in the resolution of the prototype display compared to the original near-virtual-image light-field display. Full article
(This article belongs to the Special Issue Optical Imaging and 3D Display Technologies)
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