scholarly journals The Construction of Immersive Learning System Based on Virtual Testing Technology of Virtual Reality

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Sansan Li ◽  
Dongxian Zhou
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Learning Effect ◽  
Learning System ◽  
Immersive Learning ◽  
The Real ◽  
Real Environment ◽  
Knowledge Questionnaire ◽  
Levene Test ◽  
Experimental Group

Objective. To explore the construction of immersive learning system based on virtual reality (VR) and test its learning effect. Methods. 20 qualified subjects were divided into two groups, each tending to agree, each with 5 boys and 5 girls. Experimental group 1 is in the real operating environment, and experimental group 2 is in the VR virtual disassembly experimental environment. The task process errors, knowledge questionnaire scores and user subjective satisfaction were analyzed statistically. Results. The significance probability P of knowledge questionnaire in the Levene test was 0.777, greater than 0.05, and the variance homogeneous, so the final P of independent sample t -test was subject to “assumed variance equal”; the significance probability was 0.613, greater than 0.05; the questionnaire scores of two groups showed no significant difference, so VR virtual environment can achieve the learning effect of the real environment. The number of errors in a VR virtual situation is significantly lower than the number of errors in the real environment, the VR virtual environment can achieve the learning effect of the real environment, and the VR virtual environment can achieve more interaction, with good interaction. Conclusion. The immersive learning system based on VR detection technology can realize the cognition of three-dimensional model structure and has a certain learning effect.

Design and control of a haptic interactive motion simulator for virtual entertainment systems

Robotica ◽  
2009 ◽  
Vol 28 (1) ◽  
pp. 47-56 ◽  
Author(s):  
M. Karkoub ◽  
M.-G. Her ◽  
J.-M. Chen
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Haptic Feedback ◽  
Environmental Changes ◽  
Bilateral Control ◽  
The Real ◽  
Real Environment ◽  
Control Interface ◽  
Motion Simulator ◽  
Nyquist Stability

SUMMARYIn this paper, an interactive virtual reality motion simulator is designed and analyzed. The main components of the system include a bilateral control interface, networking, a virtual environment, and a motion simulator. The virtual reality entertainment system uses a virtual environment that enables the operator to feel the actual feedback through a haptic interface as well as the distorted motion from the virtual environment just as s/he would in the real environment. The control scheme for the simulator uses the change in velocity and acceleration that the operator imposes on the joystick, the environmental changes imposed on the motion simulator, and the haptic feedback to the operator to maneuver the simulator in the real environment. The stability of the closed-loop system is analyzed based on the Nyquist stability criteria. It is shown that the proposed design for the simulator system works well and the theoretical findings are validated experimentally.

scholarly journals Aplikasi Simulasi Public Speaking Berbasis Android Dengan Unity 3D

Repositor ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 215
Author(s):  
Alfian Hanafi ◽  
Lailatul Husniah ◽  
Ali Sofyan Kholimi
Keyword(s):  
Virtual Reality ◽  
Success Rate ◽  
Virtual Environment ◽  
Scoring System ◽  
Public Speaking ◽  
The Real ◽  
Real Environment ◽  
Control Factors ◽  
Unity 3D ◽  
Test Application

ABSTRAKPublic Speaking merupakan suatu kegiatan dimana pembicara atau penyaji akan menyajikan suatu orasi kepada audien secara langsung. Public Speaking memiliki fungsi sebagai media untuk memberi informasi kepada audien, mengajak atau membujuk audien untuk melakukan, mempercayai sesuatu yang diinginkan pembicara dan memberi hiburan kepada audien. Kegiatan Public Speaking dalam masyarakat memiliki peran penting karena mampu meningkatkan keberanian seseorang untuk bicara di depan umum, selain itu Public Speaking dapat meningkatkan rasa kepemimpinan seseorang. Namun, dalam praktiknya banyak orang yang masih merasa gugup, tidak siap, bahkan tidak berani melakukan Public Speaking. Alasan itulah yang melandasi dibuatnya aplikasi simulasi pelatihan Public Speaking dengan memanfaatkan teknologi Virtual Reality (VR) yang berbasis android.VR sendiri merupakan teknologi yang memungkinkan penggunannya untuk melakukan simulasi di dunia maya secara berkelanjutan tanpa mengeluarkan biaya yang banyak. Hal ini dikarenakan VR mampu mensimulasikan lingkungan virtual dengan baik, yang tentunya akan membuat penggunanya merasa seperti di lingkungan nyata. Dalam aplikasi ini sendiri menyediakan lingkungan virtual yang bisa digunakan pengguna untuk melakukan simulasi Public Speaking, dalam menentukan tingkat keberhasilan aplikasi, maka digunakanlah sistem penilaian yang akan mengukur tingkat keberhasilan aplikasi dalam membantu melatih pengguna melakukan Public Speaking.  Terdapat 4 (empat) faktor sebagai acuan penilaian aplikasi yaitu: Control Factors, Sensory Factors, Distraction Factors, Realism Factors. Dalam hasil pengujian yang dilakukan didapatkan hasil bahwa aplikasi mampu membantu pengguna melakukan simulasi Public Speaking.ABSTRACT Public Speaking is an activity where the speaker or presenter will present an oration to the audience directly. Public Speaking has a function as a medium to inform the audience, invite or persuade audiences to perform, to believe in something the speaker wants and to entertain the audience. Public Speaking activities in the society have an important role because it can increase someone courage to speak in public, in addition Public Speaking can increase someone sense of leadership. However, in practice many people are still feeling nervous, unprepared, not even daring to do Public Speaking. The reason that underlies the creation of simulation applications Public Speaking training by utilizing technology Virtual Reality (VR) based on android.VR itself is a technology that allows it’s users to perform simulations in virtual environment on a sustainable basis without spending a lot money. This is because the VR is able to simulate a virtual environment really well, which of course will make users feel like in the real environment. In this application it’s provides a virtual environment that can be used by users to perform Public Speaking simulations, in determining the success rate of the application, then used a scoring system that will measure the success rate of the application in helping train users perform Public Speaking. There are 4 (four) factors as the appraisal that is: Control Factors, Sensory Factors, Distraction Factors, Realism Factors. In the results of test, application itself obtain the results that it is able to help users to simulate Public Speaking. 

scholarly journals RATIOS OF DIFFERENT TYPES OF ACTIVITY DEPENDING ON THE FREQUENCY OF TRANSFER OF SOCIAL ACTIVITY FROM THE REAL ENVIRONMENT TO THE VIRTUAL ENVIRONMENT AND VICE VERSA

2019 ◽  
Vol 29 (3) ◽  
pp. 286-290
Author(s):  
A.I. Zagranichny
Keyword(s):  
Virtual Environment ◽  
Social Activity ◽  
Educational Activity ◽  
Young Specialist ◽  
Play Activity ◽  
The Real ◽  
Real Environment ◽  
Different Types ◽  
Communicative Activity

The article presents the results of a research of different types of activity depending on the frequency of transfer of social activity from the real environment to the virtual environment and vice versa. In the course of the research the following types of activity were identified: play activity; educational activity; work; communicative activity. 214 respondents from the following cities participated in the research: Balakovo, Saratov, Moscow. They were at the age of 15 to 24 years. 52% of them were women. They had the following social statuses: "pupil", "student", "young specialist". The correlation interrelation between the specified types of activity and the frequency of transfer of social activity from one environment into another has been analyzed and interpreted. In the course of the research the following results were received: the frequency of transfer of social activity from the real environment to the virtual environment has a direct positive link with such types of activity as play activity (r=0.221; p <0.01); educational activity (r=0.228; p <0.01) and communicative activity (r=0.346; p <0.01). The frequency of transfer of social activity from the virtual environment to the real one has a direct positive link only with two types of activity: educational activity (r=0.188; p <0.05) and communicative activity (r=0.331; p <0.01).

scholarly journals T218. A REAL ENVIRONMENT BASED VIRTUAL REALITY PSYCHOSOCIAL TREATMENT MAY HELP PATIENTS WITH SCHIZOPHRENIA TO INCREASE SOCIAL FUNCTIONING: A PRELIMINARY STUDY

2020 ◽  
Vol 46 (Supplement_1) ◽  
pp. S315-S316 ◽  
Author(s):  
Emine Ilgın Hoşgelen ◽  
Faik Kartelli ◽  
Markus Berger ◽  
Simay Erinç ◽  
Deniz Yerlikaya ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Social Skills ◽  
Treatment Program ◽  
Psychosocial Functioning ◽  
Psychiatric Symptoms ◽  
Psychosocial Treatment ◽  
The Real ◽  
Real Environment ◽  
Significant Difference ◽  
Preliminary Study

Abstract Background Emerging new technologies may lead to the discovery of new treatment techniques in psychiatric disorders. Virtual Reality (VR) is being one of the newly developed techniques that has also taken its place in literature very recently. VR is a new technology for treatment of psychiatric symptoms. This is a pilot study that aims to determine the behavioral and symptomatic response of patients to a real recorded VR environment. In this study, a virtual reality laboratory has been established and a psychosocial treatment program through virtual reality has been developed for patients with schizophrenia. The aim of this study is to investigate the effect of VR psychosocial treatment program on psychosocial functioning in schizophrenia. Methods Data were collected from the patients who applied to Dokuz Eylül University School of Medicine, Schizophrenia and Psychosis Outpatient Clinic. Seven schizophrenia patients who met schizophrenia according to DSM-V diagnostic criteria were included into the study. The level of psychosocial functioning was assessed using the Personal and Social Performance Scale (PSP), the positive and negative symptom severity was evaluated using the Positive and Negative Syndrome Scale (PANSS) and social skills were assessed by using the Social Skills Checklist (SSC). The VR psychosocial treatment program included 10 sessions and was carried on for five weeks as twice a week. Each session had different real virtual environment applications including social interaction components such as in a café to buy a beverage, a bazaar or market to do shopping, taking a bus, tram, and/or ferry, etc. Results PSP scores were statistically different after and before virtual reality assessment (p=0,018). SSC scores were trend to be significance after the VR application (p=0,062). After five weeks, patients’ the number of going outside home, the places they go and the activities they do have been increased compared to the numbers at the beginning but did not differ in statistically significance. None of the patients reported motion sickness due to exposure to real environment during or after immersive process of VR. There was no significant difference regarding PANSS scores after the VR psychosocial treatment. In this study real environment VR sessions did not trigger positive symptoms of schizophrenia patients. Discussion In this preliminary study, we found that the real environment VR psychosocial application is eligible for schizophrenia patients to improve their social skills and daily activities. This study helped patients to experience the real environment without being there and encouraged them to be “really” in there. Soon, cognitive remediation programs and psychosocial functioning therapies may be conducted via VR and may help the patients to cope with their symptoms and daily life difficulties.

Methods to Calibrate Projection Transformation Parameters for See-Through Head-Mounted Displays

1996 ◽  
Vol 5 (1) ◽  
pp. 122-135 ◽  
Author(s):  
Takashi Oishi ◽  
Susumu Tachi
Keyword(s):  
Virtual Environment ◽  
Least Squares Method ◽  
Calibration Method ◽  
The Real ◽  
Virtual Objects ◽  
Real Environment ◽  
Calibration Methods ◽  
Head Mounted Displays ◽  
Transformation Parameters ◽  
Projection Transformation

See-through head-mounted displays (STHMDs), which superimpose the virtual environment generated by computer graphics (CG) on the real world, are expected to be able to vividly display various simulations and designs by using both the real environment and the virtual environment around us. However, we must ensure that the virtual environment is superimposed exactly on the real environment because both environments are visible. Disagreement in matching locations and size between real and virtual objects is likely to occur between the world coordinates of the real environment where the STHMD user actually exists and those of the virtual environment described as parameters of CG. This disagreement directly causes displacement of locations where virtual objects are superimposed. The STHMD must be calibrated so that the virtual environment is superimposed properly. Among the causes of such errors, we focus both on systematic errors of projection transformation parameters caused in manufacturing and differences between actual and supposed location of user's eye on STHMD when in use, and propose a calibration method to eliminate these effects. In the calibration method, the virtual cursor drawn in the virtual environment is directly fitted onto targets in the real environment. Based on the result of fitting, the least-squares method identifies values of the parameters that minimize differences between locations of the virtual cursor in the virtual environment and targets in the real environment. After we describe the calibration methods, we also report the result of this application to the STHMD that we have made. The result is accurate enough to prove the effectiveness of the calibration methods.

Influence of Physical Characteristics of Routes on Distance Cognition in Virtual Environments

2005 ◽  
Vol 32 (5) ◽  
pp. 777-785 ◽  
Author(s):  
Ebru Cubukcu ◽  
Jack L Nasar
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Real World ◽  
Three Dimensional ◽  
Spatial Behavior ◽  
Self Report ◽  
Parking Garage ◽  
The Real ◽  
Predicting Behavior

Discrepanices between perceived and actual distance may affect people's spatial behavior. In a previous study Nasar, using self report of behavior, found that segmentation (measured through the number of buildings) along the route affected choice of parking garage and path from the parking garage to a destination. We recreated that same environment in a three-dimensional virtual environment and conducted a test to see whether the same factors emerged under these more controlled conditions and to see whether spatial behavior in the virtual environment accurately reflected behavior in the real environment. The results confirmed similar patterns of response in the virtual and real environments. This supports the use of virtual reality as a tool for predicting behavior in the real world and confirms increases in segmentation as related to increases in perceived distance.

Real Handball Goalkeeper vs. Virtual Handball Thrower

2003 ◽  
Vol 12 (4) ◽  
pp. 411-421 ◽  
Author(s):  
Benoit Bideau ◽  
Richard Kulpa ◽  
Stéphane Ménardais ◽  
Laetitia Fradet ◽  
Franck Multon ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Motion Capture ◽  
Military Training ◽  
Human Motion ◽  
Virtual Experiment ◽  
Pilot Experiment ◽  
The Real ◽  
Training Tool ◽  
Future Work

Virtual reality offers new tools for human motion understanding. Several applications have been widely used in teleoperation, military training, driving and flying simulators, and so forth. We propose to test if virtual reality is a valid training tool for the game of handball. We focused on the duel between a handball goalkeeper and a thrower. To this end, we defined a pilot experiment divided into two steps: an experiment with real subjects and another one with virtual throwers. The throwers' motions were captured in order to animate their avatar in a reality center. In this paper, we focused on the evaluation of presence when a goalkeeper is confronting these avatars. To this end, we compared the goalkeeper's gestures in the real and in the virtual experiment to determine if virtual reality engendered the same movements for the same throw. Our results show that gestures did not differ between the real and virtual environment. As a consequence, we can say that the virtual environment offered enough realism to initiate natural gestures. Moreover, as in real games, we observed the goalkeeper's anticipation to allow us to use virtual reality in future work as a way to understand the goalkeeper and thrower interactions. The main originality of this work was to measure presence in a sporting application with new evaluation methods based on motion capture.

scholarly journals Augmented Reality Research and Applications in Education

2021 ◽  
Author(s):  
Ezgi Pelin Yildiz
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Real Time ◽  
Virtual Environment ◽  
Real World ◽  
The Real ◽  
Virtual Objects ◽  
Physical Environments ◽  
Real Objects ◽  
As If

Augmented reality is defined as the technology in which virtual objects are blended with the real world and also interact with each other. Although augmented reality applications are used in many areas, the most important of these areas is the field of education. AR technology allows the combination of real objects and virtual information in order to increase students’ interaction with physical environments and facilitate their learning. Developing technology enables students to learn complex topics in a fun and easy way through virtual reality devices. Students interact with objects in the virtual environment and can learn more about it. For example; by organizing digital tours to a museum or zoo in a completely different country, lessons can be taught in the company of a teacher as if they were there at that moment. In the light of all these, this study is a compilation study. In this context, augmented reality technologies were introduced and attention was drawn to their use in different fields of education with their examples. As a suggestion at the end of the study, it was emphasized that the prepared sections should be carefully read by the educators and put into practice in their lessons. In addition it was also pointed out that it should be preferred in order to communicate effectively with students by interacting in real time, especially during the pandemic process.

scholarly journals The effect of virtual reality based cognitive-motor training on psychophysiological parameters and balance function in the elderl

2020 ◽  
pp. 392-302
Author(s):  
N A. Suponeva ◽  
Anastasia E. Khizhnikova ◽  
M. A Piradov
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Berg Balance Scale ◽  
Motor Training ◽  
Balance Function ◽  
Median Response ◽  
Clinical Scales ◽  
The Status ◽  
The Stability ◽  
Experimental Group

Background: Balance dysfunction is one of the most common problems in older people. Nevertheless, there is no objective tool for assessing psychophysiological indicators of adaptation of functional systems of the brain, and the effect of training in a virtual environment on neurodynamic processes has not been sufficiently studied. Aims: To study the status and dynamics of psychophysiological indicators and their relationship with the balance function after cognitive-motor training in a virtual environment in patients with CCI. Materials and methods: The study involved 24 people. The experimental group included 14 patients with a confirmed diagnosis of chronic cerebral ischemia. A group of 10 healthy volunteers were tested on the UPFT-1/30 "Psychophysiologist" system. Patients included in the experimental group were tested using clinical scales (the Berg balance assessment scale and the MOCA scale) and instrumental assessment on UPFT-1/30 "Psychophysiologist". All patients underwent cognitive-motor training on the Rehabunculus virtual reality system (Russia), aimed at restoring the balance function. Results: After the course of cognitive-motor training in a virtual environment, the patients showed a significant (p = 0.01) improvement in the balance functions, assessed by the Berg Balance Scale, as well as a decrease in the number of errors and an improvement in the stability of visual-motor reaction test. In addition, a negative correlation was found between the median response time and the balance function on the Berg scale (r = -0.715). Conclusions: The speed of reaction to a visual stimulus can serve as markers of the adaptation processes of the nervous system to cognitive-motor training in virtual environment, which, in turn, have a positive effect on balance function.

scholarly journals Transfer of Calibration in Virtual Reality to both Real and Virtual Environments

2019 ◽  
Vol 63 (1) ◽  
pp. 1943-1947 ◽  
Author(s):  
Hannah M. Solini ◽  
Ayush Bhargava ◽  
Christopher C. Pagano
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Real World ◽  
Optic Flow ◽  
Calibration Transfer ◽  
The Real ◽  
Before And After ◽  
Virtual Display ◽  
World Environment

It is often questioned whether task performance attained in a virtual environment can be transferred appropriately and accurately to the same task in the real world. With advancements in virtual reality (VR) technology, recent research has focused on individuals’ abilities to transfer calibration achieved in a virtual environment to a real-world environment. Little research, however, has shown whether transfer of calibration from a virtual environment to the real world is similar to transfer of calibration from a virtual environment to another virtual environment. As such, the present study investigated differences in calibration transfer to real-world and virtual environments. In either a real-world or virtual environment, participants completed blind walking estimates before and after experiencing perturbed virtual optic flow via a head-mounted virtual display (HMD). Results showed that individuals calibrated to perturbed virtual optic flow and that this calibration carried over to both real-world and virtual environments in a like manner.

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