• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.431-435
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• 2006

Panoramic Image provides wider field of view than image from acquisition equipment such as a camera and provides realism and immersion to users compared with single image. Cubic panoramic image provides three dimensional access zooming and rotating in top, bottom, left and right directions. But we require commercial softwares to make a panoramic image and can see distorted images in top and bottom direction. This paper presents a method that constructs cubic panoramic virtual reality image using Apple QuickTimeVR's cubic data structure without any commercial software to make realistic image of top and bottom direction in cubic panoramic virtual reality space.

• Journal of Broadcast Engineering
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• v.24 no.2
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• pp.273-280
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• 2019

360 video is attracting attention as immersive media with the spread of VR applications, and MPEG-I (Immersive) Visual group is actively working on standardization to support immersive media experiences with up to six degree of freedom (6DoF). In virtual space of omnidirectional 6DoF, which is defined as a case of degree of freedom providing 6DoF in a restricted area, looking at the scene at any viewpoint of any position in the space requires rendering the view by synthesizing additional viewpoints called virtual omnidirectional viewpoints. This paper presents the performance results on view synthesis and their analysis, which have been done as exploration experiments (EEs) of omnidirectional 6DoF in MPEG-I. In other words, experiment results on view synthesis in various aspects of synthesis conditions such as the distances between input views and virtual view to be synthesized and the number of input views to be selected from the given set of 360 videos providing omnidirectional 6DoF are presented.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.55-62
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• 2007

정보통신 기술과 컴퓨터의 급속한 발달은 과거에 불가능했던 많은 일들을 가능하게 하였다. 디지털 기술의 발전은 기존의 추상적인 것을 구체적으로 체험 가능한 것으로 발전시켰으며, 이를 통해 인간은 경험을 확장 시킬 수 있게 되었다. 즉, 인간의 체험, 인식, 가치, 행위가 가상의 공간으로 무한하게 확장될 수 있기 때문이다. 이러한 배경 속에서 현대 사람들은 체험 공간이 현실 세계와는 다른 비일상적 체험과 욕구실현을 구현할 수 있는 공간이 되기를 원한다. 이에 따라서 체험 공간의 논의가 과거의 시각적 정보전달만을 위한 체험 공간이 아닌 정보와 흥미, 체험을 동시에 줄 수 있는 노력들이 요구, 진행되고 있다. 체험 공간에 있어서 엔터테인먼트 적인 요소가 효과적인 방법론으로 제시되고 있지만, 아직도 시청각적 흥미위주의 직선적인 공간의 이야기로 관람자를 일회적인 관람에서 그치게 하고 있다. 매체를 나열식으로 던져 준다고 해서 사람들이 흥미를 느끼거나 몰입을 경험하지는 못한다. 그러기 위해선 인터렉티브 스토리텔링(Interactive Storytelling)의 인터렉티비티한 요소가 체험 공간에서 효과적일 수 있다. 인터렉티비티는 인터렉티브 스토리텔링의 특징 중 하나로, 이와 같은 인터렉티비티 요소들은 관람자에게 다양한 선택과 통제의 기회를 주기 때문이다. 이에 따라서 체험 공간 속에서 관람자는 스스로 매체와 매체간의 반복과 조합을 통해 관람자 개개인이 새로운 시나리오를 쓸 수 있게 되고 체험 공간은 유동적인 공간이 될 수 있게 된다. 따라서 본 연구는 체험 공간이 관람자 스스로가 만들어가는 공간이 되고, 지각적 체험과 정신적 체험까지 경험할 수 있는 체험의 장이 될 수 있도록 인터렉티브 스토리텔링의 가치를 재해석하고자 하였다. 이러한 인터렉티브 스토리텔링이 공간 속에서 의미를 획득할 수 있는지에 대한 연구를 진행하고자 하였으며, 이를 위해 기존의 체험 공간에 대한 연구와 인터렉티브 스토리텔링의 기존 사례를 선행하였다. 이러한 과정을 통해 인터렉티브 스토리텔링이 체험 공간 안에서 사람들에게 일회적인 경험을 주는 것이 아닌 사람들이 직접 그 공간의 스토리를 만들 수 있는 새로운 체험 공간의 가능성을 가지고 있음을 발견하였다. 이에 따라서 월드컵이 열리는 대표적인 도시인 상암동에 한국 소프트웨어진흥원이 주관하여 건설되는 ‘상암 디지털 파빌리온’을 대상으로 인터렉티브 스토리텔링을 기반으로 한 체험공간 디자인을 작품 형태로 기획 되었으며, 기본적인 시나리오 컨셉을 제시하고 공간의 구조도, 체험 과정(Process)등이 제시된다. 이러한 연구는 기존 체험 공간이 직선적인 내러티브에서 벗어나 체험 공간 속 협업의 가능성을 열어주어 새로운 소통의 장을 마련해 준다는 긍정적인 효과를 기대할 수 있다.

• Journal of Korea Game Society
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• v.18 no.3
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• pp.113-122
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• 2018

In this paper, we will discuss planning and production of VR contents for effective racing drone steering training. In the real world, direct racing drone training training is obviously a space and economic limit. We propose through the production of VR-based drone infiltration action game as a solution to these limitations and try to improve effective drone handling ability. Especially, we designed the virtual reality contents in a similar environment by using the similarity of FPV goggles and HMD based VR, and designed virtual drones, maps and obstacles considering the characteristics of the structures used in racing drone and drone racing. Also, we tried to increase the user's immersion and presence by increasing difficulty level of obstacles.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.517-520
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• 2006

Crowd behavioral scenes in virtual underwater world are presented in many entertainments such as films and games. According to the increase of digital films and animations caused by the development of computer graphics, it is easy for us to meet with the cyber characters in those scenes. Characters which appear in computer animation put life into virtual world. The more characters we have in this virtual space, the deeper we are immersed in the space. There were many researches which processed the crowd scene and implemented the crowd behavior system in Korea. They were related to developing VR contents which were available to feel actually in the construction of the virtual environment. But they are far from reaching the step to put to practical use in developing the crowd behavior modeler. Therefore, we suggestion the fish schooling behavior modeler that provides interaction and action behavior in 3D object to present vividly and effectively in underwater world.

• Journal of the Korea Society of Computer and Information
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• v.26 no.5
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• pp.23-30
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• 2021

In this paper, we propose an extended reality-based simultaneous multi presence system in a process of remote cooperative work. The proposed system generates a ring-shaped invisible screen which surrounds a user, and it provides position and manipulation of remote workspace and personal workspace. With the proposed system, the user easily navigates the several workspace for the remote collaboration or he/she selects a specific space for immersion. The proposed system also provides manipulation of personal workspace for the user during the remote cooperative work. We conducted a user study to prove effectiveness of the proposed system. According to the results, the proposed system increased understanding spatial information and usage of time during the remote cooperative work.

• Journal of The Korean Association For Science Education
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• v.40 no.2
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• pp.203-216
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• 2020

The purpose of this study is to explore the effects of a VR(virtual reality)-based biology class on both the cognitive and affective domains by developing and applying a VR-based biology program for 6th-grade elementary school students. For this research, we developed a VR teaching material about 'digestion' reflecting virtual reality characteristics and one hundred five students in an elementary school in an urban area participated in this study and took three VR-based lessons. To examine the cognitive effects of a VR-based biology class, the study subjects were divided into two groups. The experimental group was composed of 50 individuals who participated in VR-based biology lessons, while 55 students of a control group learned through general lessons. We collected data using drawing tasks for measuring students' modeling performance level from these groups and analyzed the cognitive effect of VR-based instruction. We also recorded 21 interviews of students after the intervention, which were transcribed to verify the students' perception of cognitive and affective effects. The key results are as follows: First, we demonstrated the possibility of applying a VR program reflecting VR characteristics (manipulation, multi-sensory, and interaction). Second, we found out that a VR-based biology class significantly enhances higher levels of thinking (spatial, abstract, and reflective thinking). Third, we examined students' perceptions on this program and came to the conclusion that VR characteristics positively affected cognitive and affective domains. This study may be able to contribute to offering guidelines on how to apply VR-programs to future science education effectively.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.12
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• pp.2312-2317
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• 2017

Museums are converging with digital technology to convey information to viewers in various ways. Augmented reality technology enhances virtual objects seamlessly in the real world, and provides a high sense of immersion and realism because it can use various senses of users in combination with information providing role of exhibits. However, the location-based augmented reality may cause the inaccurate registration of the virtual object with the real world due to the error of the GPS information, and the vision-based augmented reality can be enhanced at the position where the marker is placed. To solve this problem, we implemented the exhibition contents that interact with the real world by using the developed project tango. The exhibited contents were based on Lenovo Phab 2 Pro and Project Tango SDK in Unity 3D. Visitors were able to improve immersion and realism in exhibition contents, and it would be able to combine with various exhibition fields such as shopping malls as well as museums.

• Journal of Korea Game Society
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• v.17 no.5
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• pp.89-102
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• 2017

With the increase in interest in health in the society, a variety of fusion studies have been conducted by ICT to sports. This study develops a smart bicycle that is run only when a rider maintains balance, and proposes an interface of studio space where the smart bicycle can be experienced. The studio consists of interactive smart bike, a geodesic dome for immersion of content for a single person, and virtual reality content that is implemented to enjoy various sceneries in real space. This study contributes to attempts of design and production of studio that is optimized to interactive space of smart bike for single person. This studio has a scalable interface, which can be applicable to various other interactive contents for sportainmnet.

• Journal of the Korea Society of Computer and Information
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• v.29 no.4
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• pp.63-72
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• 2024

The size of the home interior market is growing rapidly as interest in interiors and self-interiors has increased due to the recent rapid increase in single-person households. Most of the Bathroom remodeling is done by requesting an offline interior contractor and then visually checking it in the final completion stage, so it is not easy to re-construct even if the customer is dissatisfied. Therefore, this study developed an immersive virtual reality-based Bathroom self-remodeling system that can visually check space and design from the design stage to the final stage by incorporating VR technology to feel realistic in virtual reality. The bathroom structure may select the basic structure of the predefined bathroom space or freely set the size of the bathroom space. For furniture items, you can choose the washbasin, toilet, bathtub, shower booth that are essential elements of the bathroom and others(mounting rack, trash bin, handle). The tile texture may change the texture of the selected tile at a desired wall position by selecting various textures. In particular,, the texture of the wall tile can be varied by selecting horizontal, vertical and inclined directions at the desired angle according to the needs of the user and the contractor. As a future research project, this system will enable indoor sharing between users who are physically far away in real-time, allowing direct experience in virtual spaces, connection to purchases, and request estimates.