scholarly journals Low-Cost Online Handwritten Symbol Recognition System in Virtual Reality Environment of Head-Mounted Display

Mathematics ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1967
Author(s):  
Chih-Wei Shiu ◽  
Jeanne Chen ◽  
Yu-Chi Chen
Keyword(s):  
Virtual Reality ◽  
Digital Media ◽  
Low Cost ◽  
Recognition System ◽  
Media Industry ◽  
Symbol Recognition ◽  
Virtual Reality Environment ◽  
Head Mounted Display ◽  
Average Success Rate ◽  
User Actions

Virtual reality is an important technology in the digital media industry, providing a whole new experience for most people. However, its manipulation method is more difficult than the traditional keyboard and mouse. In this research, we proposed a new low-cost online handwriting symbol recognition system to accurately identify symbols by user actions. The purpose was low cost processing without requiring a server. Experimental results showed that the average success rate of recognition was 99.8%. The execution time averaged a significantly low 0.03395 s. The proposed system is, respectively, highly reliable and at a low cost. This implies that the proposed system is suitable for applications in real-time environments.

An Olfactory Display to Study the Integration of Vision and Olfaction in a Virtual Reality Environment

2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Lorenzo Micaroni ◽  
Marina Carulli ◽  
Francesco Ferrise ◽  
Alberto Gallace ◽  
Monica Bordegoni
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
Visual Display ◽  
Olfactory Cues ◽  
Input Device ◽  
Experimental Setup ◽  
Virtual Reality Environment ◽  
Head Mounted Display ◽  
The One ◽  
Olfactory Display

The paper describes the design of an innovative virtual reality (VR) system, based on a combination of an olfactory display and a visual display, to be used for investigating the directionality of the sense of olfaction. In particular, the design of an experimental setup to understand and determine to what extent the sense of olfaction is directional and whether there is prevalence of the sense of vision over the one of smell when determining the direction of an odor, is described. The experimental setup is based on low-cost VR technologies. In particular, the system is based on a custom directional olfactory display (OD), a head mounted display (HMD) to deliver both visual and olfactory cues, and an input device to register subjects' answers. The paper reports the design of the olfactory interface as well as its integration with the overall system.

scholarly journals Children’s interactive storytelling in Virtual Reality

2021 ◽  
Vol 1 (1) ◽  
pp. 48-67
Author(s):  
Dylan Yamada-Rice
Keyword(s):  
Virtual Reality ◽  
Digital Media ◽  
Virtual Worlds ◽  
Health And Safety ◽  
Design Elements ◽  
Interactive Storytelling ◽  
Head Mounted Display ◽  
Visual Style ◽  
Multimodal Methods ◽  
Core Points

This article reports on one stage of a project that considered twenty 8–12-years-olds use of Virtual Reality (VR) for entertainment. The entire project considered this in relation to interaction and engagement, health and safety and how VR play fitted into children’s everyday home lives. The specific focus of this article is solely on children’s interaction and engagement with a range of VR content on both a low-end and high-end head mounted display (HMD). The data were analysed using novel multimodal methods that included stop-motion animation and graphic narratives to develop multimodal means for analysis within the context of VR. The data highlighted core design elements in VR content that promoted or inhibited children’s storytelling in virtual worlds. These are visual style, movement and sound which are described in relation to three core points of the user’s journey through the virtual story; (1) entering the virtual environment, (2) being in the virtual story world, and (3) affecting the story through interactive objects. The findings offer research-based design implications for the improvement of virtual content for children, specifically in relation to creating content that promotes creativity and storytelling, thereby extending the benefits that have previously been highlighted in the field of interactive storytelling with other digital media.

Design of a Directional Olfactory Display to Study the Integration of Vision and Olfaction

2018 ◽  
Author(s):  
Lorenzo Micaroni ◽  
Marina Carulli ◽  
Francesco Ferrise ◽  
Monica Bordegoni ◽  
Alberto Gallace
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
Olfactory Cues ◽  
Input Device ◽  
Experimental Setup ◽  
Initial Testing ◽  
Head Mounted Display ◽  
Innovative System ◽  
The One ◽  
Olfactory Display

This research aims to design and develop an innovative system, based on an olfactory display, to be used for investigating the directionality of the sense of olfaction. In particular, the design of an experimental setup to understand and determine to what extent the sense of olfaction is directional and whether there is prevalence of the sense of vision over the one of smell when determining the direction of an odor, is described. The experimental setup is based on low cost Virtual Reality (VR) technologies. In particular, the system is based on a custom directional olfactory display, an Oculus Rift Head Mounted Display (HMD) to deliver both visual and olfactory cues and an input device to register subjects’ answers. The VR environment is developed in Unity3D. The paper describes the design of the olfactory interface as well as its integration with the overall system. Finally the results of the initial testing are reported in the paper.

scholarly journals Low-cost and home-made immersive systems

2012 ◽  
Vol 11 (3) ◽  
pp. 9-17 ◽  
Author(s):  
Sébastien Kuntz ◽  
Ján Cíger
Keyword(s):  
Virtual Reality ◽  
Vision System ◽  
Low Cost ◽  
Immersive Virtual Reality ◽  
Simple Application ◽  
3D Vision ◽  
Head Mounted Display ◽  
Good Level ◽  
Application Sharing ◽  
Immersive Systems

A lot of professionals or hobbyists at home would like to create their own immersive virtual reality systems for cheap and taking little space. We offer two examples of such "home-made" systems using the cheapest hardware possible while maintaining a good level of immersion: the first system is based on a projector (VRKit-Wall) and cost around 1000$, while the second system is based on a head-mounted display (VRKit-HMD) and costs between 600� and 1000�. We also propose a standardization of those systems in order to enable simple application sharing. Finally, we describe a method to calibrate the stereoscopy of a NVIDIA 3D Vision system.

Development of a Low-Cost Augmented Reality Head-Mounted Display Prototype

2018 ◽  
pp. 1-28
Author(s):  
Thiago D'Angelo ◽  
Saul Emanuel Delabrida Silva ◽  
Ricardo A. R. Oliveira ◽  
Antonio A. F. Loureiro
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
User Experience ◽  
Low Cost ◽  
User Interaction ◽  
Daily Activities ◽  
Head Mounted Display ◽  
Time Performance ◽  
Work Tasks ◽  
Head Mounted Displays

Virtual Reality and Augmented Reality Head-Mounted Displays (HMDs) have been emerging in the last years. These technologies sound like the new hot topic for the next years. Head-Mounted Displays have been developed for many different purposes. Users have the opportunity to enjoy these technologies for entertainment, work tasks, and many other daily activities. Despite the recent release of many AR and VR HMDs, two major problems are hindering the AR HMDs from reaching the mainstream market: the extremely high costs and the user experience issues. In order to minimize these problems, we have developed an AR HMD prototype based on a smartphone and on other low-cost materials. The prototype is capable of running Eye Tracking algorithms, which can be used to improve user interaction and user experience. To assess our AR HMD prototype, we choose a state-of-the-art method for eye center location found in the literature and evaluate its real-time performance in different development boards.

scholarly journals Comparisons Between First Person Point-of-View 180° Video Virtual Reality Head-Mounted Display and 3D Video Computer Display in Teaching Undergraduate Neuroscience Students Stereotaxic Surgeries

2021 ◽  
Vol 2 ◽  
Author(s):  
Lorenz S. Neuwirth ◽  
Maxime Ros
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
3D Video ◽  
Point Of View ◽  
Video Content ◽  
Pedagogical Approach ◽  
Head Mounted Display ◽  
Stereotaxic Surgery ◽  
Learning Content ◽  
Traditional Lectures

Introduction: Students interested in neuroscience surgical applications learn about stereotaxic surgery mostly through textbooks that introduce the concepts but lack sufficient details to provide students with applied learning skills related to biomedical research. The present study employed a novel pedagogical approach which used an immersive virtual reality (VR) alternative to teach students stereotaxic surgery procedures through the point of view (POV) of the neuroscientist conducting the research procedures.Methods: The study compared the 180° video virtual reality head-mounted display (180° video VR HMD) and the 3D video computer display groups to address the learning gaps created by textbooks that insufficiently teach stereotaxic surgery, by bringing students into the Revinax® Virtual Training Solutions educational instruction platform/technology. Following the VR experience, students were surveyed to determine their ratings of the learning content and comprehension of the material and how it compared to a traditional lecture, an online/hybrid lecture, and YouTube/other video content, as well as whether they would have interest in such a pedagogical tool.Results: The 180° video VR HMD and the 3D video computer display groups helped students attend to and learn the material equally, it improved their self-study, and they would recommend that their college/university invest in this type of pedagogy. Students reported that both interventions increased their rate of learning, their retention of the material, and its translatability. Students equally preferred both interventions over traditional lectures, online/hybrid courses, textbooks, and YouTube/other video content to learn stereotaxic surgery.Conclusion: Students preferred to learn in and achieve greater learning outcomes from both the 180° video VR HMD and the 3D video computer display over other pedagogical instructional formats and thought that it would be a more humane alternative to show how to conduct the stereotaxic surgical procedure without having to unnecessarily use/practice and/or demonstrate on an animal. Thus, this pedagogical approach facilitated their learning in a manner that was consistent with the 3-Rs in animal research and ethics. The 180° video VR HMD and the 3D video computer display can be a low-cost and effective pedagogical option for distance/remote learning content for students as we get through the COVID-19 pandemic or for future alternative online/hybrid classroom instruction to develop skills/reskill/upskill in relation to neuroscience techniques.

scholarly journals Use of Smartphone-Based Head-Mounted Display Devices to View a Three-Dimensional Dissection Model in a Virtual Reality Environment: Pilot Questionnaire Study (Preprint)

2018 ◽  
Author(s):  
Yoshihito Masuoka ◽  
Hiroyuki Morikawa ◽  
Takashi Kawai ◽  
Toshio Nakagohri
Keyword(s):  
Virtual Reality ◽  
Motion Sickness ◽  
3D Model ◽  
Low Cost ◽  
Three Dimensional ◽  
Visually Induced Motion Sickness ◽  
Head Mounted Display ◽  
Eye Fatigue ◽  
Induced Motion ◽  
Observation Environment

BACKGROUND Virtual reality (VR) technology has started to gain attention as a form of surgical support in medical settings. Likewise, the widespread use of smartphones has resulted in the development of various medical applications; for example, Google Cardboard, which can be used to build simple head-mounted displays (HMDs). However, because of the absence of observed and reported outcomes of the use of three-dimensional (3D) organ models in relevant environments, we have yet to determine the effects of or issues with the use of such VR technology. OBJECTIVE The aim of this paper was to study the issues that arise while observing a 3D model of an organ that is created based on an actual surgical case through the use of a smartphone-based simple HMD. Upon completion, we evaluated and gathered feedback on the performance and usability of the simple observation environment we had created. METHODS We downloaded our data to a smartphone (Galaxy S6; Samsung, Seoul, Korea) and created a simple HMD system using Google Cardboard (Google). A total of 17 medical students performed 2 experiments: an observation conducted by a single observer and another one carried out by multiple observers using a simple HMD. Afterward, they assessed the results by responding to a questionnaire survey. RESULTS We received a largely favorable response in the evaluation of the dissection model, but also a low score because of visually induced motion sickness and eye fatigue. In an introspective report on simultaneous observations made by multiple observers, positive opinions indicated clear image quality and shared understanding, but displeasure caused by visually induced motion sickness, eye fatigue, and hardware problems was also expressed. CONCLUSIONS We established a simple system that enables multiple persons to observe a 3D model. Although the observation conducted by multiple observers was successful, problems likely arose because of poor smartphone performance. Therefore, smartphone performance improvement may be a key factor in establishing a low-cost and user-friendly 3D observation environment.

Application of spectral computing technics for color vision testing using virtual reality devices

2020 ◽  
Vol 2020 (15) ◽  
pp. 260-1-260-5
Author(s):  
Halina C. Cwierz ◽  
Francisco Diaz-Barrancas ◽  
Pedro J. Pardo ◽  
Angel Luis Perez ◽  
Maria Isabel Suero
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Color Vision ◽  
Game Engine ◽  
Virtual Reality Environment ◽  
Head Mounted Display ◽  
The World ◽  
Color Deficiency ◽  
Color Vision Deficiencies

Color deficiency tests are well known all over the world. However, there are not applications that attempt to simulate these tests with total color accuracy in virtual reality using spectral color computing. In this work a study has been made of the tools that exist in the market in VR environments to simulate the experience of users suffering from color vision deficiencies (CVD) and the VR tools that detect CVD. A description of these tools is provided and a new proposal is presented, developed using Unity Game Engine software and HTC Vive VR glasses as Head Mounted Display (HMD). The objective of this work is to assess the ability of normal and defective observers to discriminate color by means of a color arrangement test in a virtual reality environment. The virtual environment that has been generated allows observers to perform a virtual version of the Farnsworth-Munsell 100 Hue (FM 100) color arrangement test. In order to test the effectiveness of the virtual reality test, experiments have been carried out with real users, the results of which we will see in this paper.

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