• Title/Summary/Keyword: Cyber Sickness

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A Study on Cyber Sickness according to Shader Application of 3D Objects in Virtual Reality Content (가상현실(VR) 콘텐츠에서 3D 객체의 셰이더 적용에 따른 사이버 멀미 연구)

  • Lee, SuYeol;Bak, Seon-Hui;Bae, Jong-Hwan
    • Journal of Korea Multimedia Society
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    • v.24 no.11
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    • pp.1560-1566
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    • 2021
  • Cyber Sickness, which occurs when using Virtual Reality contents, is the most serious problem in immersive Virtual Reality contents. The purpose of this study is to identify the effects and causes of graphic environmental factors on Cyber Sickness in Virtual Reality contents. To this end, cyber sickness experiments were conducted according to the light source and material settings, which are most commonly used in graphical environmental elements. Cyber Sickness measurements were based on the Simulator Sickness Question(SSQ) tool to derive an index that causes Cyber Sickness As a result of the analysis, the smaller the surface roughness, the higher the degree of Cyber Sickness, and the smaller the surface roughness, the smoother the surface of the 3D object, and many specular reflections from the light source occurred, which was confirmed to be the cause of great Cyber Sickness.

A Study on the Cyber motion sickness of VR Content -Focused on Content Environment- (VR 콘텐츠 사이버 멀미에 관한 연구 -콘텐츠 환경을 중심으로-)

  • Koo, Ja-yoon;Kim, Seung-In
    • Journal of the Korea Convergence Society
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    • v.10 no.3
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    • pp.135-140
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    • 2019
  • This study is aimed at analyzing cyber motion sickness factors focus on virtual environment-based VR and real-world VR. First literature study of cyber motion sickness, 3D animations and documentaries were conducted. As a measurement tool for the degree of motion sickness, the symptom values were measured in a standardized SSQ (Simulator Sickness Questnire) questionnaire. Following the measurement, an in-depth interview was conducted based on the SSQ questionnaire. The results are as follows, First, actual environment based VR caused bigger cyber motion sickness, second, values of strong saturation of VR contents cause cyber motion sickness. This study is expected to be used as design guidelines for configuring VR early contents and to be used for cyber motion sickness research.

Correlation between Brain Cognition and Cyberdisease in VR Media (VR매체에서의 뇌인지와 사이버 멀미의 상관관계)

  • Kim, Min-Seo;Kim, Kyun-Ho;Kim, Yu-Ri;Kim, Eun-Seo;HUH, Won-Whoi
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.5
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    • pp.603-611
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    • 2022
  • As the era of metaverse approaches, there are challenges that need to be solved. Among them, 'cyber motion sickness' is a representative problem from 2016;when VR technology began to attract attention. According to the theory of sensory conflict, motion sickness is caused when the perceived direction of motion information and the expected value are not the same. The paper was written to theoretically explore the relationship between brain cognition and cyber motion sickness, and to prove the effect of user immersion on motion sickness symptoms based on this. Through the SSQ experiment, it was found that the rotation value of the camera aggravates the symptoms of cyber motion sickness and can alleviate cyber motion sickness by increasing the immersion of the game by giving the viewer visual and shift missions to solve. This study was conducted to solve the problem of cyber motion sickness during the process of developing the VR rhythm game "beatale", and it is expected to be the basis for improving cyber motion sickness not only in the development of the project but also in the production of VR contents in the future.

A Study for Reducing of Cyber Sickness on Virtual Reality (가상현실 사이버멀미 완화에 관한 연구)

  • Song, Eun-Jee;Jung, A-Leum
    • Journal of Digital Contents Society
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    • v.18 no.3
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    • pp.429-434
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    • 2017
  • VR technology has been repidly developing thanks to development of a huge amount of new contents as well as new devices optimized for the virtual environment. Businesses in the IT sector have already started focusing on virtual reality, which might be considered as the center of industry in the future, and concentrated their efforts on development of VR, hardware and technology. Also, development of various VR device would lead to prosperity of media contents based on VR, Still, cyber sickness remain a serious problem waiting for an appropriate solution. In this paper we discuss causes for cyber sickness, analyze the relationship between cyber sickness and reflex eye movement and propose guidelines for the process of producing contents. In addition, we show experiments analyzing the effect of the proposed measures for alleviating cyber sickness.

Causes of Cyber Sickness of VR Contents: An Experimental Study on the Viewpoint and Movement (VR 콘텐츠의 사이버 멀미 유발 요인: 시점과 움직임의 효과에 대한 실험 연구)

  • Jung, Ji-Young;Cho, Kwang-Su;Choi, Jinhae;Choi, Junho
    • The Journal of the Korea Contents Association
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    • v.17 no.4
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    • pp.200-208
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    • 2017
  • Despite a rapid market growth in VR, cyber sickness has become the most serious problem in terms of user experience. The aim of this study is to verify whether there are differences in user's perception of cyber sickness by the point-of-view and the movement in VR contents. An experimental testing of game playing with VR headset was conducted on the effects of two conditions: first-person and third-person views in the point-of-view condition, and yaw - pitch rotations in the head movement condition. The results showed that cyber sickness worsened in the first-person point-of-view and in the yaw rotation movement. Point-of-view and movement had main effects on the cyber sickness, but an interaction effect between point-of-view and movement was not found. Based on the findings, along with reducing VR sickness, we proposed practical implications for VR contents planning for building balanced VR user experience. Positive VR experience can be reinforced through visual design, multi-modal interface design, and experience marketing for the optimal level of contents immersion. A future research was suggested on the roll rotation for diverse content genre development.

A study on the relationship between gaze guidance and cybersickness using Eyetracking (시선 추적기법을 활용한 시선 유도와 사이버 멀미 관계 연구)

  • Lee, TaeGu;Ahn, ChanJe
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.3
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    • pp.167-173
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    • 2022
  • The size of the virtual reality market is growing every year, but cybersickness that occurs in virtual reality has not been resolved yet. In this paper, results were derived through experiments on the relationship between cybersickness and gaze guidance occurring in virtual reality contents. Using eye tracking technique, the relationship of gaze movement with cybersickness was identified. The experiment was divided into two groups to find out whether visual induction affects cyber sickness. In addition, the results were analyzed by dividing the two groups to check whether cyber sickness showed different results according to gender. We also analyzed using the SSQ questionnaire to measure cybersickness. We tried to understand the relationship between gaze guidance and cybersickness through two methods. As a result of the experiment, it was found that the induction of a clear gaze caused the concentration of the gaze, and it was effective in cybersickness through the rotation of the camera. In order to alleviate cyber sickness, it has been confirmed that concentrating one's eyes through gaze-guided production is effective for cyber sickness. It is hoped that this result will be used as a way to alleviate cyber sickness for producers who want to use virtual reality to produce content.

The Effect of Dynamic Balance on Cyber Motion Sickness of Full Immersion Virtual Reality (완전 몰입형 가상현실로 인한 사이버 멀미가 동적 균형에 미치는 영향)

  • Kim, Na-Eun;Kim, Yu-lim;Moon, Sang-cheol;Lee, Dong-hung;Lim, Ho-jeong;Jang, Eun-kyung;Hung, Ji-eun;Kang, Jong-ho
    • Journal of Convergence for Information Technology
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    • v.8 no.1
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    • pp.131-138
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    • 2018
  • The purpose of the study was to explore whether the Cyber Motion sickness used VR causes a change in the dynamic balance and fall. For 39 people who voluntarily participated in this study, this study measured the motion sickness questionnaires, the heart rate and stability of limit test in BioRescue. The study used Samsung Gear VR and applied the games to the To the homeland. The game proceeded 20minutes. Although the value of the stability after a VR application is slightly reduced, it did not reach statistical significance. The motion sickness questionnaires increased, and it had a statistical significant impact. Also Heart rate increased and it had a statistically significant impact. A virtual reality game affect for getting motion sickness but it did not affect the dynamic balance. So, cyber motion sickness caused by virtual reality wear does not result in decreased balance and falls.

A study on the effect of virtual reality operations on cyber motion sickness (가상현실(VR)에서 조작행위가 사이버멀미에 미치는 영향)

  • Ko, Yun-Seo;Han, Jung-Wan
    • Journal of Digital Convergence
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    • v.18 no.6
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    • pp.451-457
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    • 2020
  • In this study, the degree of motion sickness displayed according to actions in virtual reality is measured based on the SSQ tool, a measuring tool, and factors and symptoms affecting cyber motion sickness are investigated through comparative analysis. In the first experiment, the operation method experiment, the simple operation method is measured to be highly affected by the Nausea factor. As symptoms of this, nausea, burp and headache symptoms were developed. In the second experiment, the larger the body rotation radius, the higher the motion sickness was measured, and the greater the influence of Nausea factors. Symptoms of this were the symptoms of burping, headaches, and a full head. In the third experiment, the physical mobility experiment, motion sickness was measured highly in the non-action controller. It was measured to be greatly affected by the Nausea factor. Symptoms of this include fever, headache, and a full head. Through this study, we found that the more fixed and simple the body is operated in virtual reality, the more sensitive the user is to motion sickness, and the larger the radius of rotation, the more sensitive it is to motion sickness. This study is meaningful in identifying factors and symptoms that affect motion sickness and VR manipulation, and is expected to be used by developers in the future to recognize the degree and symptoms of motion sickness of users and to develop content.

Designing the Sickness Benefit Scheme in South Korea: Using the Implication from Schemes of Advanced Nations (한국 상병수당제도 및 전달체계 설계연구: 주요 선진국과의 제도 비교를 중심으로)

  • Jung, Hyun Woo;Sohn, Minsung;Chung, Haejoo
    • Health Policy and Management
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    • v.29 no.2
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    • pp.112-129
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    • 2019
  • Currently, the South Korean Government does not provide sickness benefits from the National Health Insurance, which is different from most other Organization for Economic Cooperation and Development countries. The sickness benefit guarantees a part of lost income due to injuries or diseases. The purpose of this study is to propose a sickness benefit scheme for South Korea. To this end, we compare health care systems, sickness benefit schemes, and delivery systems of those in Germany, Japan, and Sweden, focusing on the seven categories: management authority, object, level of payment, duration of payment, qualification requirements, connection with paid sick leave of workplace, and financial resources, and as to delivery system, the six categories: the number of procedures, transferring document between institutions, whether or not utilizing electronic reporting system, applicant, and administrative convenience. Based on the implications derived from the case study, we propose the sickness benefit scheme and its delivery pathway and other details for South Korea. This study is first to propose the sickness benefit for health insurance in Korea with its level of details. More studies should follow with case studies of other countries, as well as productive debates to build a feasible and sustainable sickness benefit system in South Korea.

A Study on the Policy Decision Making Process of Seoul-Type Paid Sick Leave: Applying Kingdon's Multiple Streams Model (다중흐름모형을 적용한 서울형 유급병가 정책 도입과정에 관한 연구)

  • Jung, Hyun Woo;Park, So Hyeon;Sohn, Minsung;Chung, Haejoo
    • Health Policy and Management
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    • v.30 no.3
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    • pp.286-300
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    • 2020
  • In 2019, the Seoul metropolitan government established its own 'Seoul-type paid sick leave project'. Although the central government had to introduce such a system, which is also called sickness benefits, it was not implemented. In order to understand the process by which the Seoul government has implemented such a policy, this study used Kingdon's multiple streams framework. As a result, in the problem stream, it was found that the economic burden of sickness has been considered only in terms of medical expenses in the past of Korea. Then Songpa's three women and Middle East respiratory syndrome incidents raised awareness of the necessity of the sickness benefit system in 2014 and 2015. In the political stream, several social affairs such as national health insurance huge surpluses and the 2017 presidential election opened policy window. At that time, Seoul Mayor actively promoted sickness benefits as a policy entrepreneur. In the policy stream, the sickness benefit system has gained new attention through political events. To summary, these three streams flowed separately and then they assembled around huge political affairs. As a result, it was confirmed that Kingdon's model is the most effective theory than any other models in analyzing the health care policy decision process in Korea.