• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.365-368
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• 2022

본 논문에서는 가상 물체를 현실과 오차 없이 정확하게 증강 시켜야 하는 상황에서 특징 포인트를 이용하여 효율적으로 매칭하기 위한 실린더 기반의 각도 보간 기법을 제안한다. 증강현실에서 활용되는 대표적인 객체를 증강하는 방법은 특징 포인트들을 트래킹하여 찾아낸 후, RANSAC 알고리즘을 기반으로 포인트 셋에서 바닥, 벽과 같이 하나의 평면을 구성하고 그 위에 객체를 증강한다. 이 방법은 평면을 이용하기 때문에 계산량이 적지만, 증강 위치에 대한 오차가 존재하기 때문에 때때로 잘못된 위치에 객체가 배치되는 경우가 발생한다. 특히, 의료시설, 도로 공사에서 증강 현실을 사용했을 때에 증강된 가상물체의 위치, 크기 등이 현실에서 작은 오차라도 어긋날 경우 크게 사고가 발생할 수 있다. 본 논문에서는 평면 생성 없이 특징 포인트만을 이용하여 효율적으로 매칭 할 수 있는 실린더 기반의 각도 보간을 이용하여 정확하게 객체를 증강할 수 있는 결과를 보여준다.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.524-527
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• 2010

증강현실은 가상현실과 달리 완벽한 가상공간이 아닌 실제 환경과 융합된 환경을 제공하여 줌으로써 수용자들과의 상호 작용성을 한층 더 강화시켜주고 있다. 게임을 비롯한 가상현실에 대한 컨텐츠의 활용은 최근 미디어 아트, 스마트 폰과 같이 매체와 결합을 하면서 증강현실 형태로 다양한 분야에 적용되고 있다. 특히 학습하고 있는 내용에 대한 직접적인 정보 제공과 콘텐츠 제공을 통한 실시간 상호 작용성이 가능해짐에 따라 이를 활용하고자 하는 교육적 수요가 증가하고 있다. 이러한 산업적 요구에도 불구하고 증강현실 시스템에 관한 선행된 연구들의 많은 부분이 리얼리티의 증가, 렌더링 및 트랙킹 기술, 입체 영상으로의 변환등과 같이 기술적인 부분으로 한정되어 있으며, 증강현실을 교육적으로 활용하기위한 연구는 미비한 편이다. 즉 기술적인 면에서 어떻게 적용할 것인가에 대한 연구가 선행되었을 뿐 수용자의 입장에서 적용 방법 및 적용 범위에 따른 다양한 논의가 부족한 상황이다. 따라서 본 연구에서는 증강현실 경험을 최적화하기 위한 구현요소를 수용자 시각과 인식에 중점을 두어 파악하고 적용하고자 한다.

• Science of Emotion and Sensibility
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• v.26 no.4
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• pp.103-114
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• 2023

Augmented reality (AR) and virtual reality (VR) differ fundamentally, with AR overlaying computer-generated information onto the real world in a nonimmersive way. Despite extensive research on cybersickness in VR, its occurrence in AR has received less attention (Vovk et al., 2018). This study examines cybersickness and discomfort associated with AR usage, focusing on the impact of content intensity and exposure time. Participants viewed 30-minute racing simulation game clips through AR equipment, varying in racing speed to alter content intensity. Cybersickness was assessed subjectively using the Simulator sickness questionnaire (SSQ; Kennedy et al., 1993). Findings revealed a progressive increase in cybersickness with longer exposure, persisting even after removing the AR equipment. Contrarily, content intensity did not significantly influence cybersickness levels. Analysis of the SSQ subscales revealed higher oculomotor (O) scores compared to nausea (N) and disorientation (D), suggesting that discomfort primarily stemmed from oculomotor strain. The study highlights distinct differences in user experience between AR and VR, specifically in subjective responses.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.168-170
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• 2017

증강현실이란 가상현실을 활용하되 현실세계에 가상현실을 일부 겹쳐 보이게 하는 컴퓨터 그래픽 기법으로, 본 논문에서는 증강현실을 활용하여 여행 가이드북을 설계하고 구현하였다. 스탬프 투어 기능은 별도의 템플릿이나 종이 없이 스마트 폰 어플리케이션만으로 증강현실로 보이는 스탬프를 터치하는 방식으로 스탬프를 모을 수 있게 설계하였다. 문화재 해설 기능의 경우 궁 혹은 박물관 내에서 활용이 가능하며, 가상현실로 궁의 각 시설이나 문화재의 제작 목적, 사용방법에 대해서 영상으로 제공하여 이해도와 관심도를 높일 수 있다는 특징이 있다. 두 기능 모두 스마트 폰 어플리케이션 설치만으로 가능한 기능으로 시간의 제약이나 특별한 장비 없이 가상현실로 활용한 여행을 할 수 있다는 점에서 사용자에게 편리함을 줄 수 있다.

• Journal of the Korea Convergence Society
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• v.12 no.11
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• pp.285-289
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• 2021

This paper identifies the development trend of aviation software certification regulation and introduces the certification regulation optimized for aviation for the application of augmented reality and virtual reality software to aviation maintenance industry. This regulation is expected to provide stability and reliability of augmented reality and virtual reality software applied to aviation maintenance industry by applying strict certification regulations to augmented reality and virtual reality software applied to aviation maintenance industry.We would like to present certification regulations that take into account problems that are difficult to define previously used DO-178B, and DO-178C.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.9
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• pp.1214-1219
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• 2021

Virtual augmented reality technology is rapidly growing due to the development of hardware and software technology. The perspective on the application of industrial technology using this virtual augmented reality is at an early stage. Beginning with entertainment elements in Korea, there are many demands and demands in education, culture, tourism, sports, arts, medicine, disasters, and defense. In this paper, the study of the process of applying the process for the application of industrial virtual reality technology and augmented reality technology and the design of the technology according to the various operations necessary for the specific process are conducted. The study contains research results to provide services for training and actual process through virtual reality and augmented reality technology. This suggests that many industrial applications will be possible in the future.

• Journal of Broadcast Engineering
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• v.21 no.2
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• pp.192-199
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• 2016

Mixed and augmented reality technique deals with mixing content between real world and virtual world containing augmented reality and augmented virtuality excluding of pure real and pure virtual world. In mixed and augmented reality, if a live actor and entity moving in real world can be embedded more naturally in 3D virtual world, various advanced applications such 3D tele-presence, 3D virtual experience education and etc can be serviced. Therefore, in this paper, we propose a standard model which is supporting to embed the live actor and entity into 3D virtual space, and to interact with each other. And also the natural embedding and interaction of live actor and entity can be performed based on the proposed model.

• Journal of Korea Multimedia Society
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• v.15 no.1
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• pp.131-139
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• 2012

Many researches are actively doing for digital implementation of traditional architectural heritage using multimedia and virtual reality technologies. In addition, various attempts are progressed to utilize the digitally implemented traditional architectural heritage as "contents." Nowadays, the digitally implemented traditional architectural heritage can be displayed on through the Internet and/or many multimedia appliances by these attempts. Recently, virtual reality technology, especially augmented reality technology, begins to grab the attention for digitally implementing architectural heritage. Augmented reality is a technology that makes possible to show the overlapped contents by piling up the virtual objects on the real world. Many studies for augmented reality are progressed because it has an advantage in interacting with virtual objects and information. This study proposes the method of digital implementation of traditional architectural heritage by using augmented reality technology. We presented the method and process of digital implementation of traditional architectural heritage with augmented reality technology. Moreover, digitally implemented traditional architectural heritage with augmented reality is compared with the contents implemented by other computer technologies. We, also, presented how to utilize the traditional architectural heritage contents by using augmented reality.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.573-575
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• 2019

Recently, augmented reality (AR) technology has been widely used in a variety of fields such as defense, medical, education, and entertainment. In the augmented reality environment, a user can interact a virtual object by the user 's specific behaviors. Also, it is necessary to use a technique to automatically interacts among the generated virtual objects. In this paper, we propose an authoring model to apply augmented reality environments based on quantum computing inspired entanglement and overlapping phenomenon. For example, it is possible to allow the user to automatically increase and decrease the number of the object with the characteristics of the virtual object without user intervention. As a tested platform for this purpose, this paper provide an augmented reality eco-system environment with automatic interaction among virtual animals.

• Journal of Broadcast Engineering
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• v.23 no.1
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• pp.11-18
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• 2018

In these days, technologies of virtual reality (VR) and of augmented reality (AR) have applied to diverse areas such as medicine, defense, education that are closely related to real-life practice. In contrast to the previous applications of game or sports, the technologies of VR and AR tends to expand the areas of applications according to development of the imaging or video techniques. This paper introduces VR and AR techniques and some examples of applications. In addition, this paper introduces how the differences between VR and AR technologies affect to the applications of broadcasting systems. In the last, this paper introduces the results of interviews about suitability and future feasibility of VR and AR techniques for broadcasting systems from korean broadcasting companies.