• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.603-605
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• 1998

본 논문에서는 웹 상에서 널리 사용되고 있는 표준 VRML을 이용하여 구성한 가상환경에 대해 클라이언트/서버의 통신 환경에서 다중사용자에 의한 상호작용으로 그 가상환경을 변경하는 방법과 공동작업을 가능하게 하는 시스템 개발에 대해 기술한다. 본 시스템은 일반적인 웹 브라우저에서 작동할 수 있도록 하기 위해 웹 브라우저의 플러그인으로 개발하였다. 이 시스템을 기반으로하여 개발한 가상현실 인테리어 디자인 시스템은 VRML로 작성된 인테리어 파일을 일반적인 가상현실 브라우저의 특성인 일반적인 브라우징 작업 외에 가상현실 내에 객체 조작과 변형 및 새로운 객체 첨가 등의 일련의 작업을 할 수 있다.

• Broadcasting and Media Magazine
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• v.24 no.3
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• pp.35-49
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• 2019

본 고에서는 혼합현실(Mixed Reality, MR) 기반의 서비스를 위한 제작과 관련된 동향과 기술에 대해서 살펴본다. MR이란 증강현실과 가상현실의 장점을 통합하고 사용자와의 인터랙션을 더욱 강화한 방식으로 정의할 수 있는데, 이를 위해 사람에 대해 실사 형태를 가지면서 360도의 전방위 관찰이 가능한 동적인 3D모델 제작기술이 가장 핵심적인 요소이다. 특히 MR 기술 중에서 최근 5G 및 6G 기술의 시대와 함께 실사 객체 및 장면에 대한 3차원 그래픽스와 영상처리 기술을 이용한 6DoF 기반의 실사 애니메이션 제작 기술에 대해서 주로 다루고자 한다. 또한 국내외 기술적 수준을 바탕으로 국내외 시장 동향에 대해서 살펴보고, MR 기술이 시장에 미치는 파급효과와 활용 분야에 대해서도 다룬다.

• Journal of Bio-Environment Control
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• v.27 no.2
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• pp.147-157
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• 2018

With the rapid development of the 4th industrial revolution, the large-sized facilities of agriculture have been developed with high-technologies. However, it is difficult to maintain the optimum environment in large-sized facilities. Although it is essential to control micro-climate properly in large-sized facilities, there are a lot of problems to utilize high-technologies and equipment because of insufficient education for farmers. Most farms have limitations to access to their farm because of prevention of epidemics, exposure of management know-how, and so on. Especially, it is difficult to understand internal environmental factors (airflow, temperature, humidity, etc.) for farmers because these factors are invisible. Recently, Virtual reality technology which allows users to experience various phenomena directly is attracting attention. Virtual reality is very useful technology to visualize airflow and temperature distribution and so on. However, there is no cases applied this technology to agricultural facilities. In this study, research trends of virtual reality in various fields were investigated. In particular, the limitation and possibility of virtual reality technology were analyzed for educating farmers. Finally, the development of virtual reality contents for smart-farm facility were suggested.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.611-614
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• 2011

최근 멀티미디어 기술의 발달, 특히 음향 기술의 급격한 발달과 더불어 고품질 오디오에 대한 요구와 함께보다 현실감 있는 오디오를 재생하기 위한 실감 오디오기술 개발이 요구되고 있다. 이러한 요구를 만족시키기 위해 사용자의 가상현실 및 증강현실에서 실감나는 오디오 효과를 제공해 줄 수 있는 3차원 오디오에 대한 연구가 활발히 진행되고 있다. 본 논문에서는 증강현실에서 좀 더 나은 오디오 기술을 적용하여 실감나는 오디오 효과를 제공해 줄 수 있는 방법을 연구하고자 하였다. 연구한 내용은 가상세계와 실제세계의 현실감을 제공하기 위하여 마커 위에 띄워진 3D 모델의 움직임에 따라서 움직임에 맞는 사운드. 즉, 거리, 각도 등의 변화에 따른 사운드의 크기 및 피치 변화를 줄 수 있도록 하였다.

• The Journal of the Korea Contents Association
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• v.19 no.11
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• pp.499-506
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• 2019

Virtual reality, which is attracting attention due to the 4th Industrial Revolution and commercialization of 5G technology, is expanding its scope from gaming to tourism, leisure, and education, and the VR market is expected to expand continuously. As the VR market scales up in Korea, theme parks combining virtual reality contents are spreading around the city center. Unlike the existing theme parks, VR Theme Park is a small amusement culture space that is organized indoors, and you can enjoy attractions (ride) that can be enjoyed in an amusement park with virtual reality contents. Virtual reality content, which has the same characteristics as a theme park whose purpose is to experience extraordinary experiences, provides high immersion and presence in combination with the physical stimulus of attraction. The virtual reality content combined with the attraction cannot be classified accurately with the existing classification method, so a new classification method is proposed according to the experience type and the installation type. The contents were categorized through the case of the domestic VR theme park, and the planning direction for the creation of the virtual reality attraction contents that was going on was sought.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.555-556
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• 2014

ICT 기술이 발전하면서 놀이동산 같은 체험이 필요한 것들까지도 디지털화 하는 것이 가능하게 되었다. 최근에는 가상현실 기술을 이용하여 컴퓨터 시뮬레이션으로 창출된 3차원 가상공간에서 사용자의 오감 경험을 확장하고 공유함으로서, 기존의 놀이동산 게임에서 느낄 수 없는 3차원 현실세계와 유사한 경험을 추구할 수 있게 되었다. 따라서 본 논문에서는 가상현실을 이용하여 유저와 상호작용하고, 사용자에게 현실과 유사한 즐거움을 줄 수 있는 놀이동산 테마파크 게임을 개발하였다. 본 연구의 놀이동산 테마파크 게임은 Eon Studio 개발툴과 JavaScript를 이용하여 구현되었으며, Eon I-CUBE안에서 1인칭 주인공 시점으로 게임을 진행하도록 하였다. 또한 유저가 선택한 스토리 중심으로 놀이동산 테마파크를 구현하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.9
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• pp.5578-5584
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• 2014

In this study, 46 patients from a local hemodialysis center were enrolled to assess the effects of a self-motivated virtual reality (VR) exercise program on the heart rate variability and quality of life control in hemodialysis patients. The VR group (n = 23) completed a VR exercise program, where the subjects performed the exercise 40 min per session, 3 sessions per week, for 8weeks. After the exercise program, the heart rate variability and quality of life were measured. The VR group showed significant improvement in the heart rate variability and quality of life. The self-motivated VR exercise program provided both the role of supervisor as well as feedback, which is important for hemodialysis patients.Therefore, a self-motivated VR exercise program may be a useful tool for improving the psychosocial function in chronic disease patients undergoing hemodialysis.

• Journal of Satellite, Information and Communications
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• v.11 no.4
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• pp.33-38
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• 2016

As a communications system and using the wireless devices is increased at the world, the interference among devices at 2.4GHz band become issue. New complex content technology as education, concert, broadcast, thema-park are developed between Virtual Reality technology and tradition. That is expect an annual growth rate of more than 14%. Almost Virtual Reality devices use motion sense or a wireless joystick. Therefore it is necessarily to analyze the coexistence between Virtual Reality devices and Wi-Fi in the ISM band. The interference scenario and propagation of the Extended Hata Model was established to analyze the interference from WLAN into Virtual Reality devices. Through simulation results based on Monte-Carlo principle, separation frequency was obtained to protect WLAN interference from Virtual Reality devices.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.661-670
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• 2019

The purpose of the study was to review the evidence of effects of virtual reality (VR) technology in nursing education. Four databases were searched for articles publised until November 2018 that databases include PubMed, Proquest (nursing and allied health), CINAHL, & RISS. Key word used for search include 'education, nursing', 'simulation', 'skill training', 'virtual reality' and 'VR'. Of 695 papers searched, Seven studies were selected for data analysis. Of seven studies, five studies used quasi-experimental design and two used one group design. There were two studies used VR technology for skill training and five were scenario based VR simulation program. Studies evaluated outcomes including students performance, time spent on practice, self-efficacy and communication ability that most studies reported positive effects while some figures were not statistically significant. The findings of this study provides evidence of nursing education program using VR, however, additional research with rigorously designed studies using systematized measurements for study outcomes are required. In addition, comparison with existing skill training and simulation education should be considered in the future studies.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.12
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• pp.1838-1845
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• 2022

Due to COVID-19, the face-to-face on-site exhibitions were not held. With this opportunity, technologies such as virtual reality/augmented reality are increasing attention, and these technologies are being used in many fields. In this study, we made a virtual exhibition content which was produced using virtual reality technology. Our virtual exhibition was held in parallel with the on-site exhibition that included the same contents. Also this exhibition provided an opportunity to realistic experience using the head mounted display. In order to provide a high sense of presence, we created an open virtual space and used realistic 3D objects and textures. Although it is a virtual exhibition, the audience can experience a sense of realism like an on-site exhibition. After the exhibition was over, a survey was conducted on the audience who participated in both the on-site exhibition and virtual exhibition to analyze their responses. As a result of the survey, the similarity and immersion of the virtual exhibition were highly evaluated.