Article
Computer Science, Software Engineering
Yu Zhao, Jeanine Stefanucci, Sarah Creem-Regehr, Bobby Bodenheimer
Summary: This paper examines the design problem of head-mounted augmented reality displays in pedestrian navigation systems, specifically the choices of denoting landmarks with AR cues and conveying navigation instructions. Through simulating outdoor lengthy routes in virtual reality, it was found that world-fixed directions resulted in better spatial learning when there were no landmarks cued, while adding AR landmark cues marginally improved spatial learning in the screen-fixed condition.
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
(2023)
Review
Chemistry, Multidisciplinary
Kaushik Parida, Hyunwoo Bark, Pooi See Lee
Summary: In the rapidly advancing field of augmented reality/virtual reality, thermal technology plays a crucial role in enhancing realism and user experience, allowing for improved object recognition and discrimination through thermal stimulation or sensing.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Cardiac & Cardiovascular Systems
Christian Jung, Georg Wolff, Bernhard Wernly, Raphael Romano Bruno, Marcus Franz, P. Christian Schulze, Jennifer N. Avari Silva, Jonathan R. Silva, Deepak L. Bhatt, Malte Kelm
Summary: Virtual reality and augmented reality have wide applications in cardiovascular education and treatment, with potential in various fields. However, there are technical challenges to overcome and ethical considerations to address, while ensuring the focus of physicians and patients.
JACC-CARDIOVASCULAR IMAGING
(2022)
Review
Optics
Chao Liu, Yi Zheng, Rong-Ying Yuan, Zhao Jiang, Jin-Bo Xu, You-Ran Zhao, Xin Wang, Xiao-Wei Li, Yan Xing, Qiong-Hua Wang
Summary: Tunable liquid lenses, with their strong adjustability, low power consumption, fast response time, and easy integration, have attracted much attention from researchers. This review provides an introduction to the research background, classification, driving mechanism, latest progress, limitations, directions for future research, and current and potential applications of tunable liquid lenses.
LASER & PHOTONICS REVIEWS
(2023)
Review
Computer Science, Information Systems
Federica Ferraguti, Saverio Farsoni, Marcello Bonfe
Summary: Percutaneous nephrolithotomy is the gold standard for treating renal stones larger than 20 mm in diameter. The puncture step is crucial and challenging, and various simulation methods and systems have been developed to help trainees achieve competency. Augmented reality and robotic assistance have also been used to enhance surgical performance. Accurate tracking of motion is fundamental for these technologies.
Article
Computer Science, Software Engineering
Suyeon Choi, Manu Gopakumar, Yifan Peng, Jonghyun Kim, Gordon Wetzstein
Summary: The article introduces a method to improve holographic display image quality using a neural network parameterized wave propagation model, trained through camera feedback, and demonstrates its effectiveness through experiments.
ACM TRANSACTIONS ON GRAPHICS
(2021)
Article
Computer Science, Software Engineering
Yu Zhao, Jeanine Stefanucci, Sarah Creem-Regehr, Bobby Bodenheimer
Summary: This study examines the design problem of augmented reality (AR) systems in pedestrian navigation by simulating real-world conditions in virtual reality. The results show that using the world-fixed frame of reference for navigation without landmark cues enhances spatial learning, while adding AR landmark cues in the screen-fixed condition slightly improves spatial learning. These findings have implications for the design of future cognition-driven navigation systems.
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
(2023)
Review
Green & Sustainable Science & Technology
Ahmad Almufarreh, Muhammad Arshad
Summary: As the use of information and communication technology (ICT) increases, emerging technologies are gaining attention. It is crucial to teach digital citizenship skills early on using relevant examples. New teaching methods support individual learning and knowledge acquisition, and numerous digital education tools have been developed to enhance student autonomy, academic process management, collaboration, and communication between teachers and students.
Article
Computer Science, Software Engineering
Marcio C. F. Macedo, Antonio L. Apolinario
Summary: One of the main goals of augmented reality applications is to seamlessly integrate real scenes with virtual data. This survey focuses on the occlusion handling problem in augmented reality applications and provides a review of 161 articles published between January 1992 and August 2020. It discusses the strategies used to determine depth order, visualize hidden objects, and build occlusion-capable visual displays, as well as the state-of-the-art techniques, recent research trends, and future directions for research.
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
(2023)
Review
Computer Science, Interdisciplinary Applications
Shaveta Dargan, Shally Bansal, Munish Kumar, Ajay Mittal, Krishan Kumar
Summary: Augmented Reality (AR) is a technology that modifies the perception of real-world images by overlaying digital data on them. It has diverse applications in various fields and is distinct from virtual reality.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Kaixuan Wang, Lim Wei Yap, Shu Gong, Ren Wang, Stephen Jia Wang, Wenlong Cheng
Summary: As augmented reality (AR) and virtual reality (VR) technology become commercially available, there is potential for skin sensory interface to serve as the next-generation AR/VR technology. Nanowire-based soft wearable HMI sensors and other emerging technologies like soft contact lenses, haptic force actuators, and feedback mechanisms offer a more comfortable and immersive experience for future AR/VR systems.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Tae-Heon Yang, Jin Ryong Kim, Hanbit Jin, Hyunjae Gil, Jeong-Hoi Koo, Hye Jin Kim
Summary: Tele-haptics technology is emerging as a future of the VR/AR industry, enabling human-to-human interactions beyond traditional VR/AR interactions. Active materials play a significant role in haptic innovations, addressing the needs and challenges for current and future VR/AR technologies.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Computer Science, Software Engineering
Tram Thi Minh Tran, Shane Brown, Oliver Weidlich, Mark Billinghurst, Callum Parker
Summary: Wearable Augmented Reality (AR) has gained significant attention in recent years, with a growing number of research publications and industry investments. This paper reviews 389 research papers on wearable AR published between 2018 and 2022 in three major venues, categorizing them into different topics and identifying prevailing trends. One notable finding is the increasing focus of wearable AR research on enabling broader consumer adoption. The paper highlights key observations related to potential future research areas essential for capitalizing on this trend and achieving widespread adoption.
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
(2023)
Article
Chemistry, Multidisciplinary
Toqeer Ali Syed, Salman Jan, Muhammad Shoaib Siddiqui, Ali Alzahrani, Adnan Nadeem, Arshad Ali, Ali Ullah
Summary: This paper introduces a CAR-Tourist framework for collaborative augmented reality in tourism, which provides a secure environment using blockchain architecture to ensure trust among participants and prevent unauthorized access. The framework also includes a specific tourism application where tourists can hire remote guides for collaborative guidance over a blockchain-trusted network.
APPLIED SCIENCES-BASEL
(2022)
Article
Information Science & Library Science
Yogesh K. Dwivedi, Laurie Hughes, Abdullah M. Baabdullah, Samuel Ribeiro-Navarrete, Mihalis Giannakis, Mutaz M. Al-Debei, Denis Dennehy, Bhimaraya Metri, Dimitrios Buhalis, Christy M. K. Cheung, Kieran Conboy, Ronan Doyle, Rameshwar Dubey, Vincent Dutot, Reto Felix, D. P. Goyal, Anders Gustafsson, Chris Hinsch, Ikram Jebabli, Marijn Janssen, Young-Gab Kim, Jooyoung Kim, Stefan Koos, David Kreps, Nir Kshetri, Vikram Kumar, Keng-Boon Ooi, Savvas Papagiannidis, Ilias O. Pappas, Ariana Polyviou, Sang-Min Park, Neeraj Pandey, Maciel M. Queiroz, Ramakrishnan Raman, Philipp A. Rauschnabel, Anuragini Shirish, Marianna Sigala, Konstantina Spanaki, Garry Wei-Han Tan, Manoj Kumar Tiwari, Giampaolo Viglia, Samuel Fosso Wamba
Summary: The metaverse has the potential to revolutionize the way we work, leisure, and interact socially by extending the physical world using augmented and virtual reality technologies. Although there are currently limitations in technology and infrastructure, researchers are increasingly studying the transformative impact of the metaverse on various sectors, including marketing, education, and healthcare, as well as potential societal issues.
INTERNATIONAL JOURNAL OF INFORMATION MANAGEMENT
(2022)
Article
Optics
Jianghao Xiong, Qian Yang, Yannanqi Li, Shin-Tson Wu
Summary: This article proposes a new method for manufacturing liquid crystal polarization optics based on holographic imprinting. By replicating the polarization patterns of reflective liquid crystal holograms, high-quality polarization patterns can be generated. This method has widespread impact on the fabrication of liquid crystal polarization optics for advanced display and imaging systems.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Review
Optics
Kun Yin, En-Lin Hsiang, Junyu Zou, Yannanqi Li, Zhiyong Yang, Qian Yang, Po-Cheng Lai, Chih-Lung Lin, Shin-Tson Wu
Summary: Liquid crystal displays (LCDs) and photonic devices are crucial for augmented reality (AR) and virtual reality (VR). The emerging HDR mini-LED backlit LCDs improve image quality and brightness while reducing power consumption for VR displays. High-resolution-density and high-brightness liquid-crystal-on-silicon (LCoS) show promise as image sources for see-through AR displays, especially in high ambient lighting conditions.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Zhenyi Luo, Yuqiang Ding, Yi Rao, Shin-Tson Wu
Summary: The pancake lens structure offers a compact solution for near-eye displays, but the use of a half mirror results in a significant optical loss. The proposed folded optical structure, using polarization-selective cholesteric liquid crystal reflectors, doubles the efficiency and optical path length to balance the tradeoff between form factor and efficiency. Simulation results match well with experiments. Two display configurations are established to evaluate the imaging performances of the proposed pancake lens structure.
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
(2023)
Article
Engineering, Electrical & Electronic
Yizhou Qian, Zhiyong Yang, Yu-Hsin Huang, Kuan-Heng Lin, Shin-Tson Wu
Summary: The RGB nanowire light-emitting diode (LED) structures were optimized using a 3D dipole cloud model to achieve a narrower radiation pattern, reduced angular color shift, and higher optical efficiency. Compared to micro-LEDs, which have externally quantum efficiency depending on mesa size, the RGB nanowire LEDs are more efficient for chip sizes below 20, 80, and 10 μm, respectively. Therefore, nanowire LEDs show promise for augmented reality and virtual reality displays that require high-resolution density and efficient directional light emission.
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
(2023)
Article
Engineering, Electrical & Electronic
Yannanqi Li, John Semmen, Qian Yang, Shin-Tson Wu
Summary: A new electrically driven polymer-stabilized polarization volume grating (PVG) has been developed, with the diffraction efficiency modulated by a vertical electric field. By doping a small amount of liquid crystal monomer into the host cholesteric liquid crystal, a stabilized polymer network is formed, allowing for reversible unwinding. The fabricated device exhibits submillisecond response time, a large range of diffraction efficiency modulation, and clear see-through capability. Demonstrations of potential applications show suppressed rainbow effect, enhanced light efficiency, and expanded field of view for a waveguide-based augmented reality display. The unique properties and benefits of switchable PVGs could revolutionize near-eye display research, particularly in novel optical systems for augmented reality waveguide displays.
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
(2023)
Article
Engineering, Electrical & Electronic
En-Lin Hsiang, Zhiyong Yang, Shin-Tson Wu
Summary: Virtual reality (VR) devices use imaging optics to magnify microdisplay images, providing an immersive viewing experience. Microdisplays need high-resolution density and dynamic range to meet human vision system requirements. However, increasing resolution and dynamic range can reduce optical efficiency and complicate microdisplay panel fabrication. This paper analyzes image degradation in VR devices caused by both imaging optics and microdisplay, finding that imaging optics significantly impact microdisplay requirements, such as contrast ratio, local dimming zones, and resolution density. These findings help prevent excessive microdisplay design in pancake lens-based VR headsets.
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
(2023)
Article
Engineering, Electrical & Electronic
Yuqiang Ding, Yannanqi Li, Qian Yang, Shin-Tson Wu
Summary: This paper proposes a single full-color waveguide AR display based on reflective polarization volume gratings (PVGs) to improve stability and wearing comfort. By analyzing the optical system, we optimize a three-layer PVG as an in-coupler and derive the field of view limit. With a single-layer, thin PVG as an out-coupler, we achieve a relatively uniform exit pupil of 8 mm at the horizontal pupil expansion direction.
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
(2023)
Editorial Material
Optics
En-Lin Hsiang, Shin-Tson Wu
Summary: Compared to conventional bulky spectropolarimeters, computational spectropolarimeters reconstruct light-field information in a compact form factor, enabling new applications. A tunable liquid crystal metasurface can modulate the phase and spectral information of light, paving the way for developing compact and low-cost spectropolarimetric imaging devices with widespread applications.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhiyong Yang, Yizhou Qian, Junyu Zou, Chia-Lun Lee, Chih-Lung Lin, Shin-Tson Wu
Summary: To achieve high resolution and low power consumption in virtual reality applications, field sequential color (FSC) is used to triple the resolution density and optical efficiency of LCDs. By evaluating the physical properties of a high birefringence nematic LC mixture, a fringe-field switching (FFS) LCD was designed to exhibit fast response time for FSC operation. The FSC LCD also demonstrated wide color gamut and superior color uniformity.
APPLIED SCIENCES-BASEL
(2023)
Article
Optics
Zhenyi Luo, Yannanqi Li, John Semmen, Yi Rao, Shin-Tson Wu
Summary: This study demonstrates an achromatic diffractive liquid-crystal device to overcome the chromatic aberration issue. The proposed device consists of three stacked diffractive liquid crystal optical elements with specific spectral response and polarization selectivity. Simulation and experimental results show significant improvement in imaging performance. This technology has potential applications in virtual reality and mixed reality fields.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Crystallography
Yizhou Qian, Zhiyong Yang, En-Lin Hsiang, Qian Yang, Kevin Nilsen, Yu-Hsin Huang, Kuan-Heng Lin, Shin-Tson Wu
Summary: Vehicle displays are becoming increasingly integrated into our daily lives, requiring high-resolution density and sufficient brightness to combat intense ambient light. Infotainment displays demand over 800 nit brightness to display images clearly under direct sunlight, while head-up displays need to strike a delicate balance between resolution density, brightness, transparency, and image quality.
Article
Optics
Chien-Chung Lin, Yuh-Renn Wu, Hao-Chung Kuo, Matthew S. Wong, Steven P. Denbaars, Shuji Nakamura, Ayush Pandey, Zetian Mi, Pengfei Tian, Kazuhiro Ohkawa, Daisuke Iida, Tao Wang, Yuefei Cai, Jie Bai, Zhiyong Yang, Yizhou Qian, Shin-Tson Wu, Jung Han, Chen Chen, Zhaojun Liu, Byung-Ryool Hyun, Jae-Hyun Kim, Bongkyun Jang, Hyeon-Don Kim, Hak-Joo Lee, Ying-Tsang Liu, Yu-Hung Lai, Yun-Li Li, Wanqing Meng, Haoliang Shen, Bin Liu, Xinran Wang, Kai-ling Liang, Cheng-Jhih Luo, Yen-Hsiang Fang
Summary: Micro light-emitting diode (micro-LED) is expected to play a significant role in future smart displays, offering advantages in various applications. The article focuses on the current status, challenges, and potential advances in micro-LED technology, highlighting the importance of epitaxy innovation and quantum scale structures. Peripheral components and technologies, such as microchip transfer and repair, heterogeneous integration, and novel 2D materials, are also discussed. The potential of micro-LED displays in augmented reality (AR) and the efforts to address existing problems are emphasized.
JOURNAL OF PHYSICS-PHOTONICS
(2023)
Article
Optics
Jianghao Xiong, Haizheng Zhong, Dewen Cheng, Shin-Tson Wu, Yongtian Wang
Summary: This study demonstrates a polarization hologram with full DoF for local manipulation of optical structure, based on emerging self-assembled photo-aligned liquid crystal technology. The ability to record arbitrary wavefront and perform local liquid crystal adjustment is achieved through freeform surface exposure and inkjet printing, respectively, resulting in a full-color retinal scanning display without color crosstalk.
Review
Optics
Yuqian Ding, Qian Yang, Yannanqi Li, Zhiyong Yang, Zhengyang Wang, Haowen Liang, Shin-Tson Wu
Summary: This review paper focuses on the perspectives and challenges of optical waveguide combiners for augmented reality (AR) displays. It introduces the basic device structures and operation principles of different AR architectures, and delves into different waveguide combiners, including geometric and diffractive waveguide combiners. Commonly used in-couplers and out-couplers are discussed, and their properties are analyzed in detail. The paper also explores recent advances in waveguide combiner design and modeling, and discusses the bottlenecks and future development trends in waveguide combiner technologies.
Article
Crystallography
Yuge Huang, Shin-Tson Wu
Summary: The Mini-LED backlit LCD exhibits premium display performance, including motion blur reduction, high dynamic range, and suppression of the halo effect.
LIQUID CRYSTALS TODAY
(2023)