• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.63-70
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• 2020

This study was designed to test the convergence effectiveness of virtual reality programs for patients with stroke by using meta-analysis. Based on the PICOS criteria, we searched domestic literature and selected the final 9 studies in relation to 'stroke' and 'virtual reality programs'. Evaluation of the risk of bias in individual studies was conducted using evaluation tools according to the design of each study. The effect size of the meta-analysis was calculated using CMA program. The mediating effect analysis was conducted by sub-group analysis and meta-regression analysis. The overall effect size of the virtual reality program on the activities of daily living ability was Hedges's g=0.302(95% CI: 0.064~0.540), Therefore, virtual reality programs can increase the activities of daily living in stroke patients and have a positive impact on the medical industry that the convergence of virtual reality industry and healthcare industry.

• Smart Media Journal
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• v.11 no.6
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• pp.9-17
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• 2022

In the COVID-19 pandemic era, non-contact services were demanded and the use of extended reality and metaverse services increased rapidly in various applications. In this paper, we analyze Gather.town, ifland, Roblox, and ZEPETO metaverse platforms in terms of user interaction, avatar-based interaction, and virtual world authoring. Especially, we distinguish interactions among user input techniques that occur in the real world, avatar representation techniques to represent users in the virtual world, and interaction types that create a virtual world through user participation. Based on this work, we highlight the current trends and needs of human-metaverse interaction and forecast future opportunities and research directions.

• Convergence Security Journal
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• v.22 no.3
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• pp.19-24
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• 2022

Metaverse is a compound word of the English words 'meta', meaning 'virtual' and 'transcendence', and 'universe' meaning the universe. dimensional virtual world. Metaverse is a concept that has evolved one step further than virtual reality (VR, a cutting-edge technology that enables people to experience life-like experiences in a virtual world created by a computer). It has the characteristic of being able to engage in social and cultural activities similar to reality. However, there are many security issues related to this, and cybersecurity vulnerabilities may occur. This paper analyzes cybersecurity threats that may occur in the metaverse environment and checks vulnerabilities.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.167-168
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• 2022

코로나 19로 인한 팬데믹 상황과 함께 비대면 서비스인 메타버스와 가상현실이 큰 관심을 받고 있다. 본 논문에서는 메타버스 기반 암벽등반 콘텐츠를 통해 전 세계의 유명한 산악 랜드마크를 탐험할 수 있게 하는데 필요한 기술과 구현한 콘텐츠에 대해 설명한다.

• Knowledge Management Research
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• v.23 no.2
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• pp.37-60
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• 2022

The growth of virtual reality games and the popularization of blockchain technology are bringing significant changes to the formation of the metaverse industry ecosystem. Especially, after Meta acquired Oculus, a VR device and application company, the growth of VR-based metaverse services is accelerating. In this study, the concept that supports leisure activities in the metaverse environment is explored realting to game-like features in VR apps, which differentiates traditional mobile apps based on a smart phone device. Using exploratory text mining methods and network analysis approches, 241 apps registed in the Oculus Quest 2 App Store were analyzed. Analysis results from a quasi-network show that a leisure concept is closely related to various genre features including a game and tourism. Additionally, the anlaysis results of G & F model indicate that the leisure concept is distictive in the view of gateway brokerage role. Those results were also confirmed in LDA topic modeling analysis.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.375-387
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• 2022

During the pandemic, social distancing continued for a long period of time, and as a result, this situation raised the possibility of the online space as a place for serious social relationships. In particular, metaverse platforms are adding to the reality of virtual space by expanding their functions so that users can provide various online events and have a variety of new experiences. This study attempted to examine the social relationship between reality and the metaverse according to social inclinations and behavior patterns. As a result of this study, the group with a high sense of inferiority in their usual relationship and the group with low satisfaction with their usual social interaction felt high discomfort at a similar level in both real and metaverse relationships. The group with the opposite inclination felt more uncomfortable in the metaverse relationship than in reality. In addition, whether the behavior patterns in the metaverse and in reality were different or same did not significantly affect the difference in attidudes between the metaverse and reality. In the case of group with different behavior patterns, however, if they were satisfied with how they look in the metaverse, their intimacy with social relationships was also high. This results implicate that we need to make an special effort for the development of social relationships in the metaverse era.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.6
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• pp.1345-1352
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• 2023

With the development of virtual reality (VR) and blockchain technology, Metaverse is being used in various fields such as games, education, and social networking. At the same time, shipments of wearable devices such as smartwatches are growing every year, becoming more and more integrated into people's daily lives. This study presents a new possibility of reflecting the user's body signals measured through the combination of the two phenomena in the metaverse character. Various biometric information such as the user's heart rate and amount of exercise collected through the smartwatch are reflected on the character in the metaverse, allowing the user's physical condition to be reflected in the virtual world. Through this, Metaverse is expected to provide a new experience that can be called 'extended reality' beyond simple virtual reality, improve user's satisfaction with Metaverse, and suggest a direction for the development of smartwatches.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2012.07a
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• pp.435-438
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• 2012

본 논문에서는 최근 모바일 디바이스에서 제공되고 있는 증강현실 서비스를 방송환경에 접목할 수 있는 서비스 시나리오에 대한 소개와 이를 실현하기 위한 증강방송 메타데이터에 대하여 소개한다. 방송환경이 모바일 환경과 다르기 때문에 완벽한 증강 서비스를 제공하는데 있어서 한계가 있다. 한편 TV 의 대 화면과 양질의 TV 프로그램, 스마트 TV 로의 발전에 따른 웹 환경 지원과 모션/음성 인식 인터페이스, 그리고 스마트 TV 애플리케이션의 등장은 증강방송의 가능성을 한층 높이고 있다. 이를 가능하게 하기 위하여 증강방송 메타데이터를 설계하였으며, 증강방송 메타데이터는 증강영역 및 시간, 증강 콘텐츠, 정합 정보 등을 포함한다. 증강방송 메타데이터를 방송환경에 적합하게 전송하기 위하여 스트리밍 서비스에 적합하도록 메타데이터 구조를 정의하였다.

• Review of Korea Contents Association
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• v.19 no.1
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• pp.13-17
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• 2021

Currently, the metaverse is rapidly emerging in a situa tion where human encounters are decreasing as non-fa ce-to-face status continues due to COVID-19. In this ar ticle, we explore the metaverse world that expresses th e real world and look at how we should live in the futur e.In addition, we analyze the technological status of Na ver Z's zepeto, the most popular metaverse service platf orm in Korea, and the Roblox service, which is used by 70% of elementary school students abroad. This confir ms the impact and appearance of the metaverse on our future.

• Broadcasting and Media Magazine
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• v.27 no.3
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• pp.11-24
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• 2022

COVID-19로 급부상한 메타버스는 현실 세계의 활동을 가상세계로 확장하여 접근하는 방식을 제시함으로써, 서비스 사업자들에게 현실의 자산이나 가치를 가상 공간에서 새로운 자산과 가치로 재해석하여 새로운 창조적 생태계를 선도할 수 있는 자유도와 기회를 제공하고, 사용자들에게는 이를 통해 서비스의 접근성과 지속성 및 새로운 욕구를 충족할 수 있는 기회를 제공함으로써 관심을 받게 되었다. 본 기고에서는 미래 메타버스 생태계의 새로운 기회를 제공할 DAO와 Web 3.0 관련 동향을 점검하고 탈중앙화의 미래 가능성과 문제점을 논한다.