• Broadcasting and Media Magazine
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• v.26 no.2
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• pp.56-66
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• 2021

최근 실감미디어를 넘어선 실감미디어에 대한 요구가 증대하고 있고, 전 세계적으로 불어닥친 코로나 사태로 인해서 비대면이라는 불가피한 사회적 사태에 직면하면서 실감미디어에 대한 필요성은 더욱 강조되고 있다. 실감미디어 기술에 있어서 기존의 현실감과 현장감을 넘어서기 위한 기술로 실사 기반의 볼류메트릭 4D 영상 기술이 각광을 받고 있다. 볼류메트릭 4D 영상은 기존의 VR 기술이 갖는 인터렉션의 한계를 넘어서고, 그래픽스 기반의 AR 기술이 갖는 사실감의 한계를 넘어설 수 있는 차세대 기술이다. 볼류메트릭 4D 영상 기술의 많은 장점에도 불구하고, 이 기술의 확대는 여러 가지 이유에서 쉬운 일이 아니었다. 그 중심에는 볼류메트릭 4D 영상을 획득하기 위한 스튜디오의 구성에 있을 것이다. 다음으로는 수많은 영상 데이터를 통합하기 위한 정밀한 영상처리 기술에 있을 것이다. 물론 이러한 연구와 개발이 이루어지기 위해서는 그에 맞는 하드웨어 및 소프트웨어 환경이 갖추어져야 할 것이다. 뿐만 아니라 아직까지 볼류메트릭 4D 영상을 위한 콘텐츠 소비 생태계가 전혀 갖추어져있지 않고, 현재의 미디어 서비스 환경은 아직까지 볼류메트릭 4D 영상을 내재하기 위한 준비가 되어있지 않다. 그럼에도 불구하고 미디어 시장 곳곳에서 볼류메트릭 4D 영상을 활용하는 사례들이 등장하고 있다. 본 고에서는 이러한 볼류메트릭 4D 영상을 이용하여 콘텐츠를 제작하고 서비스하기 위한 시도의 첫번째 단계인 캡쳐(획득)에 대해 집중적으로 살펴보고자 한다[1].

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.155-157
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• 2022

기존의 안전교육 교수방법은 강의 방식으로 전달하고 있어 근로자의 참여를 이끌어내는데 한계점이 있으며, 불안전한 행동에 의한 안전사고를 예방하기 위해서는 스마트 체험식 안전교육으로 패러다임을 전환할 필요성이 있다. [연구배경/목적]:스마트 체험식 안전교육은 건설현장에서 근로자들이 보다 더 빠르게 위험을 인지하고 여기에 맞는 안전작업 이행과 위험발생 시 응급대처 능력 등을 향상시키므로 사전사후 학습전이의 효과성을 검정할 수 있다. 이러한 관점에서 안전사고를 예방하기 위한 본 연구는 안전교육의 체험학습방법과 참여방법, 교육콘텐츠 접근방법을 통하여 근로자의 안전행동 유도와 불안전행동 감소에 미치는 영향검증이 목적이다. [연구방향/범위]:실제 건설현장과 동일하게 작업환경을 구성해 놓은 스마트 체험식 안전교육시설에서 추락체험, 낙하물체험, 장비협착체험, 화재, 감전재해 등의 실제 사고를 체험해 볼 수 있도록 만들어진 체험학습 방법과 가상(VR, AR, 메타버스)공간에서 간접경험 할 수 있는 참여방법을 다룰 것이다. 그리고 안전체험교육 사전사후의 분석을 통하여 안전 학습전이 성과를 분석한다. [연구 분석방법]:연구의 주요 변인으로는 Human-Error, 안전행동요인, 불안전행동요인, 위험감수성, 조직특성, 조직의 안전문화, 조직의 역량, 안전교육특성, 교육콘텐츠 변화가 사전사후 분석을 통하여 현장 작업 시 안전 학습전이의 효과성을 검정하였다.

• Journal of the Korea Computer Graphics Society
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• v.22 no.3
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• pp.11-20
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• 2016

This paper introduces an effective method for generating 3D stereoscopic images that gives immersive 3D experiences to viewers using mobile-based binocular HMDs. Most of previous AR systems with monocular cameras have a common limitation that the same real-world images are provided to the viewer's eyes without parallax. In this paper, based on the assumption that viewers focus on the marker in the scenario of marker based AR, we recovery the binocular disparity about a camera image and a virtual object using the pose information of the marker. The basic idea is to generate the binocular disparity for real-world images and a virtual object, where the images are placed on the 2D plane in 3D defined by the pose information of the marker. For non-marker areas in the images, we apply blur effects to reduce the visual discomfort by decreasing their sharpness. Our user studies show that the proposed method for 3D stereoscopic image provides high depth feeling to viewers compared to the previous binocular AR systems. The results show that our system provides high depth feelings, high sense of reality, and visual comfort, compared to the previous binocular AR systems.

• Journal of the Korea Computer Graphics Society
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• v.30 no.3
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• pp.61-69
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• 2024

Mixed reality(MR) technology combines the advantages of virtual reality(VR) and augmented reality(AR) technology, allowing MR users to interact with virtual objects against the background of the real world. In addition, since virtual objects interact with the real world, users can experience a higher immersion. This study proposes electric circuit practical training content using Meta Quest Pro to produce immersive MR content based on reality. To this end, first, the development process for producing MR content by linking Meta Quest Pro equipment with the Unity 3D engine is organized. Then, based on the traditional electric circuit practical training method used in elementary school science classes, virtual electric circuit practical training content with the same training method and operation process is produced based on MR. Finally, survey experiments are conducted to analyze the presence and experience of the MR-based educational environment provided using the produced content. Through this, the usability of the proposed practical training content is evaluated and future research directions are suggested.

• Journal of The Korean Association of Information Education
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• v.14 no.2
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• pp.165-174
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• 2010

The digital textbook project which embarked by the Ministry of Education, Science and Technology has focused on experiments and practices from the school designated by the government. However the previous research about digital textbook provides static interaction models and teaching-learning models analogous to web-based learning based desktop PC even the framework of the digital textbook is based of Tablet PC. This paper provides learning and teaching models for next generation digital textbook which based digital inking techinques for sketcth interface and AR(augmented reality) interactions between teacher and learner. The proposed method of this paper is applied to educational contents and we found positive effect which is supported by statistical experiments. The results of this study in the future and the future development of digital textbooks in effect will be an effective development plan.

• The Journal of the Korea Contents Association
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• v.11 no.8
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• pp.88-101
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• 2011

Locative media is fundamentally different from traditional media in terms of being packed with user's space, place, and position nearby, which does not simply mean user's physical coordinates. This study has been started that I was drawn by the tendency of which current locative media contents are based on 'location-based information,' and closely related with 'Augmented Reality.' I wonder how media user's psychological experience/involvement are revealed when the media environment changes by the progress of technology. I wonder how media users perceive 'social presence' formed by locative media in current locative media environment. Particularly, the fact that user's perception of social presence formed in locative media conflicts with the previous computer-mediated communication(CMC)'s attributes deepened my curiosity. In this study, the idea of 'more-proper-construct' is suggested, the characteristics of social presence in current locative media is considered, and is investigated by qualitative methodology how the 'location-based' attributes and 'AR' contribute to forming the social presence.

• The Journal of the Convergence on Culture Technology
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• v.10 no.5
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• pp.735-742
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• 2024

Respectful Recognition of Life is a broad concept that includes a mindset that values oneself, others, animals and plants, does not harm them, and protects the environment. Prior research examined the relationship between companion animals and the perception of respect for life. In this study, we investigated and analyzed whether the development of interactive game content with virtual pets in augmented reality has the effect of improving the perception of respect for life. To this end, six contents were developed by referring to the daily routine of a panda keeper, an endangered species. As a result of the experiment, it was confirmed that the effect of recognizing respect for life is similarly applied to the interaction with virtual pets, and it is expected that it will be able to satisfy the needs of users who want to keep endangered species as pets.

• Electronics and Telecommunications Trends
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• v.32 no.5
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• pp.39-48
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• 2017

Since the world's first 3D commercial film with red-blue glasses was introduced in 1922, remarkable progress has been made in the field of 3D video. 3D video content gained enormous popularity with the movie "Avatar," which greatly increased the sale of 3D TVs. This momentum has weakened owing to lack of 3D content. However, the recent trend of virtual reality (VR) and augmented reality (AR) made 360 VR video and 3D games using a head mounted display wide spread. All these experiences mentioned above require wearing glasses to enjoy 3D content. Super multi-view content technology, on the other hand, enables viewers to enjoy 3D content without glasses on a super multi-view display. In this article, we introduce the technologies used to make super multi-view content, interact with it, and author content, which are developed by ETRI.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.625-627
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• 2018

본 연구는 전 연령 및 아동을 대상으로 하는 모바일 AR(Augmented Reality, 증강현실) 기반의 스마트폰 어플리케이션을 설계 제안하고, 아동이 사용가능한 교육용 책 교구를 설명한다. 현재 시중에 출시된 어플리케이션에 대해 분석하고, 사용자의 동기유발과 집중력 향상을 목적으로 학습 구조를 도출한다. 학습의 집중을 위한 단순한 사용자 인터페이스를 설계하여, 증강현실 기술과 접목한다. 본 연구를 통해 사용자는 책이 가진 지식의 보고를 유지하며 스마트 폰을 통한 자율학습을 유지할 수 있다. 경제적 소비 감소와 스마트 폰의 활용도를 기대할 수 있다.

• International Journal of Contents
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• v.16 no.3
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• pp.18-32
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• 2020

The aim of this study was to perform a meta-analysis of the learning outcomes of immersive learning technologies in English language teaching (ELT). This study examined 12 articles, yielding a total of 20 effect sizes. The Comprehensive Meta-Analysis (CMA) program was employed for data analysis. The findings revealed that the overall effect size was 0.84, implying a large effect size. Additionally, the mean effect sizes of the dependent variables revealed a large effect size for both the cognitive and affective domains. Furthermore, the study analyzed the impact of moderator variables such as sample scale, technology type, tool type, work type, program type, duration (sessions), the degree of immersion, instructional technique, and augmented reality (AR) type. Among the moderators, the degree of immersion was found to be statistically significant. In conclusion, the study results suggested that immersive learning technologies had a positive impact on learning in ELT.