Augmented Reality Lightfield Display for a Smart Window Using an Active Pinhole Array

Park, Minyoung; Lee, Hyuntaek; Choi, Heejin

doi:10.1109/access.2019.2956605

Cited by 3 publications

(3 citation statements)

References 16 publications

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Section: Optimisation and Application Of Ar Systems With Different Di...mentioning

confidence: 99%

“…In addition, the uniformity of imaging intensity is better than 20%, and the image is clear without ghost images, which can effectively realise the fusion of the virtual image and the real environment. Park et al100 proposed using a transparent display and an active pinhole array (APA) to realise an AR lightfield display to increase 3D resolution and visibility of actual objects. Although the refresh rate and optical efficiency of APA are inversely proportional to the number of views due to time-multiplexing operations, the proposed system can complete a full screen within 40 ms and provide a commercial movie refresh rate.…”

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confidence: 99%

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User's image perception improved strategy and application of augmented reality systems in smart medical care: A review

Jiang

Zhang

Sun

et al. 2023

Robotics Computer Surgery

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Background: Augmented reality (AR) is a new human-computer interaction technology that combines virtual reality, computer vision, and computer networks. With the rapid advancement of the medical field towards intelligence and data visualisation, AR systems are becoming increasingly popular in the medical field because they can provide doctors with clear enough medical images and accurate image navigation in practical applications. However, it has been discovered that different display types of AR systems have different effects on doctors' perception of the image after virtual-real fusion during the actual medical application. If doctors cannot correctly perceive the image, they may be unable to correctly match the virtual information with the real world, which will have a significant impact on their ability to recognise complex structures. Methods: This paper uses Citespace, a literature analysis tool, to visualise and analyse the research hotspots when AR systems are used in the medical field. Results: A visual analysis of the 1163 articles retrieved from the Web of Science Core Collection database reveals that display technology and visualisation technology are the key research directions of AR systems at the moment. Conclusion: This paper categorises AR systems based on their display principles, reviews current image perception optimisation schemes for various types of systems, and analyses and compares different display types of AR systems based on their practical applications in the field of smart medical care so that doctors can select the appropriate display types based on different application scenarios.

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Section: Optimisation and Application Of Ar Systems With Different Di...mentioning

confidence: 99%

mentioning

confidence: 99%

User's image perception improved strategy and application of augmented reality systems in smart medical care: A review

Jiang

Zhang

Sun

et al. 2023

Robotics Computer Surgery

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show abstract

“…The common method of implementing AR is a glasses-type head-mounted display (HMD) in which users see computer-generated content in real-world surroundings to facilitate real-time interaction. This technology could positively impact multiple aspects of our daily routines, including education, communication, training, driving, and entertainment [4][5][6]. Among the performance parameter of AR HMD, the focus cue and form factor are key parameters that directly affect the comfort of using and wearing [9,10].…”

Section: Introductionmentioning

confidence: 99%

Compact imaging system based on multi-variable focal lens system in AR display

Lee

Cho

Lee

et al. 2023

Advances in Display Technologies XIII

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Augmented Reality (AR) has been attracted considerable attention according to the demand for non-face-to-face services. The principle of AR is overlapping a virtual image in the real world. To display a virtual image at a proper position, depth of field is a significant factor. In this paper, we propose a multi-variable focal lens system that can dynamically tune a depth of field. By using a multifocal lens that has several different focal lengths, an image has depth information corresponding to each focal length. A focus tunable lens controls a focused area and magnification to display the appropriate position and size. The proposed system has a huge advantage in form factor and fever issues owing to its simple architecture. In order to verify the feasibility of the system for AR, numerical simulations are performed. The system divides a 2D image into focused and defocused areas. Focused and defocused areas show feasibility that can be tuned by the multifocal lens and focus tunable lens. The results show the depth range from 0.3 m to 2 m (3.3D to 0.5D), which is determined by the design of the system.

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Past, Present, and Future of the Augmented Reality (AR)-Enhanced Interactive Techniques: A Survey

Gholap,

2023

2023 7th International Conference on Machine Vision and Information Technology (CMVIT)

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Augmented Reality Lightfield Display for a Smart Window Using an Active Pinhole Array

Cited by 3 publications

References 16 publications

User's image perception improved strategy and application of augmented reality systems in smart medical care: A review

User's image perception improved strategy and application of augmented reality systems in smart medical care: A review

Compact imaging system based on multi-variable focal lens system in AR display

Past, Present, and Future of the Augmented Reality (AR)-Enhanced Interactive Techniques: A Survey

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