scholarly journals Accuracy and Repeatability Tests on HoloLens 2 and HTC Vive

2021 ◽  
Author(s):  
Inês Soares ◽  
Ricardo Sousa ◽  
Marcelo Petry ◽  
António Moreira
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Industrial Robot ◽  
Ground Truth ◽  
Hand Tracking ◽  
Deep Knowledge ◽  
Significant Step ◽  
Huge Impact ◽  
The Difference ◽  
Accuracy And Repeatability

Augmented and Virtual Reality have been experiencing a rapidly growth in recent years, but there is not still a deep knowledge on their capabilities and where they could be explored. In that sense, this paper presents a study on the accuracy and repeatability of the Microsoft's HoloLens 2 (Augmented Reality device) and HTC Vive (Virtual Reality device) using an OptiTrack system as ground truth. For the HoloLens 2, the method used was hand tracking, while in HTC Vive, the object tracked was the system's hand controller. A series of tests in different scenarios and situations were performed to explore what could influence the measures. The HTC Vive obtained results in the millimetre scale, while the HoloLens 2 revealed not so accurate measures (around 2 centimetres). Although the difference can seem to be considerable, the fact that HoloLens 2 was tracking the user's hand and not an inherit controller made a huge impact. The results were considered a significant step for the on going project of developing a human-robot interface to program by demonstration an industrial robot using Extended Reality, which shows great potential to succeed based on this data.

scholarly journals Accuracy and Repeatability Tests on HoloLens 2 and HTC Vive

2021 ◽  
Vol 5 (8) ◽  
pp. 47
Author(s):  
Inês Soares ◽  
Ricardo B. Sousa ◽  
Marcelo Petry ◽  
António Paulo Moreira
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Industrial Robot ◽  
Ground Truth ◽  
Hand Tracking ◽  
Significant Step ◽  
Huge Impact ◽  
The Difference ◽  
Accuracy And Repeatability ◽  
Ongoing Project

Augmented and virtual reality have been experiencing rapid growth in recent years, but there is still no deep knowledge regarding their capabilities and in what fields they could be explored. In that sense, this paper presents a study on the accuracy and repeatability of Microsoft’s HoloLens 2 (augmented reality device) and HTC Vive (virtual reality device) using an OptiTrack system as ground truth. For the HoloLens 2, the method used was hand tracking, whereas, in HTC Vive, the object tracked was the system’s hand controller. A series of tests in different scenarios and situations were performed to explore what could influence the measures. The HTC Vive obtained results in the millimeter range, while the HoloLens 2 revealed not very accurate measurements (around 2 cm). Although the difference can seem to be considerable, the fact that HoloLens 2 was tracking the user’s hand and not the system’s controller made a huge impact. The results are considered a significant step for the ongoing project of developing a human–robot interface by demonstrating an industrial robot using extended reality, which shows great potential to succeed based on our data.

scholarly journals Virtual Worlds, Virtual Reality, and Augmented Reality: Differences in Purchase Intentions Based on Types, Users, and Sex

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Angie marie Cox ◽  
Indira Guzman ◽  
Sikha Bagui ◽  
Kenneth Cromer
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Virtual Worlds ◽  
Structural Equation ◽  
Reasoned Action ◽  
Group Analysis ◽  
Purchase Intentions ◽  
Equation Modeling ◽  
Practical Applications ◽  
The Difference

This paper discusses the disparity between two Virtual World (VW) users groups: Social and Game-oriented users. It highlights the difference between the distinct players' behaviors and their purchase intentions in VWs. It then examines the differences in the sexes. The findings are applied to possible conditions in Augmented Reality (AR) and Virtual Reality (VR). This paper sheds light on consumers’ behaviors and markets in VWs, AR and VR to increase understanding of a popular pastime and an activity that has an abundance of practical applications. The backbone of the study comes from the Theory of Reasoned Action (TRA) and Flow Theory to explain how the different VW user attributes, such as skill and challenge, play a role in VW purchase intentions. This paper uses a data sample and modified model from Cox (2016) to find significant sex differences between the Social-oriented users and Game-oriented users, by using bootstrapping and Partial Least Squares (PLS), Structural Equation Modeling (SEM), and multi-group analysis. Female Game-oriented users were found to have a stronger relationship between their challenge levels to their VW shopping subjective norms (SN) than male Game-oriented users, while Social-oriented users displayed no significant variances. This means VW, AR and VR game designers, businesses, and researchers should recognize differences in the groups, to design and strategize ways to maximize female Game-oriented players' challenge level in order to flourish VW SN and overall lead to increased sales.

Multisensory Digital Experiences

2021 ◽  
pp. 371-386
Author(s):  
Sharafat Hussain
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Mixed Reality ◽  
Daily Lives ◽  
Interactive Technologies ◽  
Ethical Concerns ◽  
The Future ◽  
The Difference ◽  
Almost All ◽  
The Relationship

Whether we go to a restaurant or jogging, almost all the experiences in our daily lives consist of what we see, hear, smell, taste, and feel. Lately, especially in the COVID-19-affected world, many of these multisensory experiences have been transformed and capitalized through invents in technology. This chapter looks at the technological advancements in the area of new interactive technologies and multisensory experiences. This chapter describes the basics of multisensory experiences, the relationship between the human senses and technologies. It discusses the concepts that help analyze and explain how the senses interact with each other. Further, this chapter highlights the difference between virtual reality, augmented reality, and mixed reality using the reality-virtuality continuum. In the end, this chapter underscores some ethical concerns, our responsibility towards it, and what the future of those multisensory experiences may hold for us.

scholarly journals Haplets: Finger-Worn Wireless and Low-Encumbrance Vibrotactile Haptic Feedback for Virtual and Augmented Reality

2021 ◽  
Vol 2 ◽  
Author(s):  
Pornthep Preechayasomboon ◽  
Eric Rombokas
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
User Study ◽  
Haptic Feedback ◽  
Hand Tracking ◽  
Software Framework ◽  
Vibrotactile Feedback ◽  
Pressure Sensitive ◽  
Drawing Task ◽  
Virtual And Augmented Reality

We introduce Haplets, a wearable, low-encumbrance, finger-worn, wireless haptic device that provides vibrotactile feedback for hand tracking applications in virtual and augmented reality. Haplets are small enough to fit on the back of the fingers and fingernails while leaving the fingertips free for interacting with real-world objects. Through robust physically-simulated hands and low-latency wireless communication, Haplets can render haptic feedback in the form of impacts and textures, and supplements the experience with pseudo-haptic illusions. When used in conjunction with handheld tools, such as a pen, Haplets provide haptic feedback for otherwise passive tools in virtual reality, such as for emulating friction and pressure-sensitivity. We present the design and engineering for the hardware for Haplets, as well as the software framework for haptic rendering. As an example use case, we present a user study in which Haplets are used to improve the line width accuracy of a pressure-sensitive pen in a virtual reality drawing task. We also demonstrate Haplets used during manipulation of objects and during a painting and sculpting scenario in virtual reality. Haplets, at the very least, can be used as a prototyping platform for haptic feedback in virtual reality.

Augmented Reality Aided Control of Industrial Robots

2014 ◽  
Vol 1025-1026 ◽  
pp. 1145-1149 ◽  
Author(s):  
Jozef Novak-Marcincin ◽  
Miroslav Janak ◽  
Ludmila Novakova-Marcincinova
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Experimental Testing ◽  
Industrial Robot ◽  
Industrial Applications ◽  
Industrial Robots ◽  
Head Mounted Display ◽  
Simultaneous Control ◽  
Manufacturing Technologies ◽  
Further Development

This contribution presents the method of simultaneous control and creation of programming sequences for industrial robot with the use of interactivity achieved in the environment of augmented reality. Paper describes the experimental testing of proposed conception realized at the Faculty of Manufacturing Technologies in Presov of Technical University of Kosice (Slovakia) in the environment of experimental robotic workcell with the use of augmented reality tools. From the viewpoint of displaying units it consider the projection on half-silvered glass as well as using the head mounted display for virtual reality. Final part of the paper summarizes possible trends of further development in described area and also the possibilities of industrial applications.

Augmented Reality--Implications toward Virtual Reality, Human Perception and Performance

2012 ◽  
Author(s):  
R. A. Grier ◽  
H. Thiruvengada ◽  
S. R. Ellis ◽  
P. Havig ◽  
K. S. Hale ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Human Perception ◽  
And Performance

Just Another Media Cluster?

2019 ◽  
Vol 16 (2) ◽  
pp. 22-31
Author(s):  
Christian Zabel ◽  
Gernot Heisenberg
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Oculus Rift ◽  
Pokémon Go

Getrieben durch populäre Produkte und Anwendungen wie Oculus Rift, Pokémon Go oder der Samsung Gear stößt Virtual Reality, Augmented Reality und auch Mixed Reality auf zunehmend großes Interesse. Obwohl die zugrunde liegenden Technologien bereits seit den 1990er Jahren eingesetzt werden, ist eine breitere Adoption erst seit relativ kurzer Zeit zu beobachten. In der Folge ist ein sich schnell entwickelndes Ökosystem für VR und AR entstanden (Berg & Vance, 2017). Aus einer (medien-) politischen Perspektive interessiert dabei, welche Standortfaktoren die Ansiedlung und Agglomeration dieser Firmen begünstigen. Da die Wertschöpfungsaktivitäten sowohl hinsichtlich der Zielmärkte als auch der Leistungserstellung (z. B. starker Einsatz von IT und Hardware in der Produkterstellung) von denen klassischer Medienprodukte deutlich abweichen, kann insbesondere gefragt werden, ob die VR-, MR- und AR-Unternehmen mit Blick auf die Ansiedlungspolitik als Teil der Medienbranche aufzufassen sind und somit auf die für Medienunternehmen besonders relevanten Faktoren in ähnlichem Maße reagieren. Der vorliegende Aufsatz ist das Ergebnis eines Forschungsprojekts im Auftrag des Mediennetzwerks NRW, einer Tochterfirma der Film- und Medienstiftung NRW.

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

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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