Generation of a Panorama Compatible with the JPEG 360 International Standard Using a Single PTZ Camera

Recently, the JPEG working group (ISO/IEC JTC1 SC29 WG1) developed an international standard, JPEG 360, that specifies the metadata and functionalities for saving and sharing 360-degree images efficiently to create a more realistic environment in various virtual reality services. We surveyed the metadata formats of existing 360-degree images and compared them to the JPEG 360 metadata format. We found that existing omnidirectional cameras and stitching software packages use formats that are incompatible with the JPEG 360 standard to embed metadata in JPEG image files. This paper proposes an easy-to-use tool for embedding JPEG 360 standard metadata for 360-degree images in JPEG image files using a JPEG-defined box format: the JPEG universal metadata box format. The proposed implementation will help 360-degree cameras and software vendors provide immersive services to users in a standardized manner for various markets, such as entertainment, education, professional training, navigation, and virtual and augmented reality applications. We also propose and develop an economical JPEG 360 standard compatible panoramic image acquisition system from a single PTZ camera with a special-use case of a wide field of view image of a conference or meeting. A remote attendee of the conference/meeting can see the realistic and immersive environment through our PTZ panorama in virtual reality.

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Augmented and Virtual Reality and Its Applications

Multimedia and Sensory Input for Augmented, Mixed, and Virtual Reality - Advances in Computational Intelligence and Robotics ◽

10.4018/978-1-7998-4703-8.ch003 ◽

2021 ◽

pp. 68-85

Author(s):

S. Graceline Jasmine ◽

L. Jani Anbarasi ◽

Modigari Narendra ◽

Benson Edwin Raj

Keyword(s):

Virtual Reality ◽

Augmented Reality ◽

User Interfaces ◽

Real World ◽

Motion Tracking ◽

Physical World ◽

Entertainment Education ◽

Virtual And Augmented Reality ◽

Digital Knowledge ◽

Multimodal Sensory Integration

Augmented reality (AR) overlies manually made materials directly over the real-world materials. This chapter addresses the technological and design frameworks required to create realistic motion tracking environments, realistic audio, 3D graphical interactions, multimodal sensory integration, and user interfaces and games using virtual reality to augmented reality. Similarly, the portfolio required to build a personal VR or AR application is detailed. Virtual and augmented reality industry committed innovative technologies that can be explored in the field of entertainment, education, training, medical and industrial innovation, and the development are explored. Augmented reality (AR) allows the physical world to be enhanced by incorporating digital knowledge in real time created by virtual machine. Few applications that have used augmented and virtual reality in real-world applications are discussed.

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A Ship Driving Teaching System Based on Multi-level Virtual Reality Technology

International Journal of Emerging Technologies in Learning (iJET) ◽

10.3991/ijet.v11i11.6249 ◽

2016 ◽

Vol 11 (11) ◽

pp. 26 ◽

Cited By ~ 3

Author(s):

Fenghua Cao

Keyword(s):

Virtual Reality ◽

Wide Field ◽

Virtual Reality Technology ◽

Training Environment ◽

Teaching System ◽

Maritime Education ◽

Wide Field Of View ◽

Multi Level ◽

Maritime Education And Training ◽

And Training

The present ship driving teaching system cannot ensure that all seafarers or students have enough time to go into training for basic skills, and it is not practical or feasible in all cases. We construct a consistent VR marine training environment to enhance maritime education and training at all levels. The basic equation of key algorithm involving the multilevel virtual reality ship driving teaching system is presented in this paper. The system is equipped with V.Dragon 2000. The application results show that the system can project visual system with wide field of view, and instructor control station etc. The training environment provides a strong visual reinforcement and a strong sense of immersion.

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STM studies of crystal growth

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100086179 ◽

1991 ◽

Vol 49 ◽

pp. 374-375

Author(s):

M. G. Lagally

Keyword(s):

Crystal Growth ◽

Molecular Beam ◽

Chemical Vapor ◽

Sputter Deposition ◽

Field Of View ◽

Scanning Tunneling ◽

Wide Field ◽

Tunneling Microscopy ◽

Wide Field Of View ◽

The One

It has been recognized since the earliest days of crystal growth that kinetic processes of all Kinds control the nature of the growth. As the technology of crystal growth has become ever more refined, with the advent of such atomistic processes as molecular beam epitaxy, chemical vapor deposition, sputter deposition, and plasma enhanced techniques for the creation of “crystals” as little as one or a few atomic layers thick, multilayer structures, and novel materials combinations, the need to understand the mechanisms controlling the growth process is becoming more critical. Unfortunately, available techniques have not lent themselves well to obtaining a truly microscopic picture of such processes. Because of its atomic resolution on the one hand, and the achievable wide field of view on the other (of the order of micrometers) scanning tunneling microscopy (STM) gives us this opportunity. In this talk, we briefly review the types of growth kinetics measurements that can be made using STM. The use of STM for studies of kinetics is one of the more recent applications of what is itself still a very young field.

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Faculty Opinions recommendation of Wide field-of-view, twin-region two-photon imaging across extended cortical networks.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.730478356.793519026 ◽

2016 ◽

Author(s):

Axel Nimmerjahn

Keyword(s):

Field Of View ◽

Wide Field ◽

Cortical Networks ◽

Two Photon ◽

Wide Field Of View ◽

Photon Imaging ◽

Two Photon Imaging

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Design and verification of high-precision multi-star simulator with a wide field of view

Chinese Optics ◽

10.37188/co.2020-0024 ◽

2020 ◽

Vol 13 (6) ◽

pp. 1-9

Author(s):

XU Hong-gang ◽

◽

HAN Bing ◽

LI Man-li ◽

MA Hong-tao ◽

...

Keyword(s):

High Precision ◽

Field Of View ◽

Wide Field ◽

Wide Field Of View

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Augmented Reality, Virtual Reality and Artificial Intelligence in Orthopedic Surgery: A Systematic Review

Applied Sciences ◽

10.3390/app11073253 ◽

2021 ◽

Vol 11 (7) ◽

pp. 3253

Author(s):

Umile Giuseppe Longo ◽

Sergio De Salvatore ◽

Vincenzo Candela ◽

Giuliano Zollo ◽

Giovanni Calabrese ◽

...

Keyword(s):

Artificial Intelligence ◽

Systematic Review ◽

Virtual Reality ◽

Augmented Reality ◽

Orthopaedic Surgery ◽

Resident Training ◽

Comprehensive Search ◽

Virtual And Augmented Reality ◽

Orthopaedic Training ◽

Meta Analyses

Background: The application of virtual and augmented reality technologies to orthopaedic surgery training and practice aims to increase the safety and accuracy of procedures and reducing complications and costs. The purpose of this systematic review is to summarise the present literature on this topic while providing a detailed analysis of current flaws and benefits. Methods: A comprehensive search on the PubMed, Cochrane, CINAHL, and Embase database was conducted from inception to February 2021. The Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines were used to improve the reporting of the review. The Cochrane Risk of Bias Tool and the Methodological Index for Non-Randomized Studies (MINORS) was used to assess the quality and potential bias of the included randomized and non-randomized control trials, respectively. Results: Virtual reality has been proven revolutionary for both resident training and preoperative planning. Thanks to augmented reality, orthopaedic surgeons could carry out procedures faster and more accurately, improving overall safety. Artificial intelligence (AI) is a promising technology with limitless potential, but, nowadays, its use in orthopaedic surgery is limited to preoperative diagnosis. Conclusions: Extended reality technologies have the potential to reform orthopaedic training and practice, providing an opportunity for unidirectional growth towards a patient-centred approach.

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Optical Navigation Sensor for Runway Relative Positioning of Aircraft during Final Approach

Sensors ◽

10.3390/s21062203 ◽

2021 ◽

Vol 21 (6) ◽

pp. 2203

Author(s):

Antal Hiba ◽

Attila Gáti ◽

Augustin Manecy

Keyword(s):

Optical Sensors ◽

Inertial Sensor ◽

Image Data ◽

Flight Test ◽

Image Features ◽

Wide Field ◽

Test Results ◽

Wide Field Of View ◽

Final Approach ◽

Marker Detection

Precise navigation is often performed by sensor fusion of different sensors. Among these sensors, optical sensors use image features to obtain the position and attitude of the camera. Runway relative navigation during final approach is a special case where robust and continuous detection of the runway is required. This paper presents a robust threshold marker detection method for monocular cameras and introduces an on-board real-time implementation with flight test results. Results with narrow and wide field-of-view optics are compared. The image processing approach is also evaluated on image data captured by a different on-board system. The pure optical approach of this paper increases sensor redundancy because it does not require input from an inertial sensor as most of the robust runway detectors.

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Time Travel to the Past of Bosnia and Herzegovina through Virtual and Augmented Reality

Applied Sciences ◽

10.3390/app11083711 ◽

2021 ◽

Vol 11 (8) ◽

pp. 3711

Author(s):

Selma Rizvić ◽

Dušanka Bošković ◽

Vensada Okanović ◽

Ivona Ivković Kihić ◽

Irfan Prazina ◽

...

Keyword(s):

Virtual Reality ◽

Augmented Reality ◽

Bosnia And Herzegovina ◽

Time Travel ◽

Virtual Museum ◽

The Past ◽

Intangible Heritage ◽

Physical Form ◽

Virtual And Augmented Reality ◽

Cultural Monuments

Bosnia and Herzegovina (BH) has a very picturesque past. Founded in 11th century, it has always been a crossroads of faiths and civilizations. Extended Reality (XR) technologies can finally take us to time travel into this history, enable us to experience past events and meet historical characters. In this paper, we overview the latest applications we developed that use Virtual Reality (VR) video, Virtual and Augmented Reality (AR) for interactive digital storytelling about BH history. “Nine dissidents” is the first BH VR documentary, tackling a still tricky subject of dissidents in the Socialist Yugoslavia, artists and writers falsely accused, persecuted and still forbidden. “Virtual Museum of Old Crafts” aims to present and preserve crafts intangible heritage through Virtual Reality. “Battle on Neretva VR” is recreating a famous WWII battle offering the users to experience it and meet comrade Tito, the commander of the Yugoslav Liberation Army. “Sarajevo 5D” shows the cultural monuments from Sarajevo that do not exist anymore in physical form using Augmented Reality. Through user experience studies, we measure the user immersion and edutainment of these applications and show the potential of XR for the presentation and preservation of cultural heritage.

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Ultrawide-angle and high-efficiency metalens in hexagonal arrangement

Scientific Reports ◽

10.1038/s41598-020-72668-2 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Chun-Yuan Fan ◽

Chia-Ping Lin ◽

Guo-Dung J. Su

Keyword(s):

High Efficiency ◽

Numerical Aperture ◽

Vital Role ◽

Optical Systems ◽

Wide Field ◽

Wide Angle ◽

Camera Systems ◽

Single Lens ◽

Hexagonal Arrangement ◽

Virtual And Augmented Reality

Abstract Wide-angle optical systems play a vital role in imaging applications and have been researched for many years. In traditional lenses, attaining a wide field of view (FOV) by using a single optical component is difficult because these lenses have crucial aberrations. In this study, we developed a wide-angle metalens with a numerical aperture of 0.25 that provided a diffraction-limited FOV of over 170° for a wavelength of 532 nm without the need for image stitching or multiple lenses. The designed wide-angle metalens is free of aberration and polarization, and its full width of half maximum is close to the diffraction limit at all angles. Moreover, the metalens which is designed through a hexagonal arrangement exhibits higher focusing efficiency at all angles than most-seen square arrangement. The focusing efficiencies are as high as 82% at a normal incident and 45% at an incident of 85°. Compared with traditional optical components, the proposed metalens exhibits higher FOV and provides a more satisfactory image quality because of aberration correction. Because of the advantages of the proposed metalens, which are difficult to achieve for a traditional single lens, it has the potential to be applied in camera systems and virtual and augmented reality.

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