• International journal of advanced smart convergence
• /
• v.9 no.1
• /
• pp.163-171
• /
• 2020

There are many differences in narrative delivery between common movies and Virtual Reality(VR) films due to their differences in the appreciation structure. In VR films, scene changes by cuts have hindered the immersion of the audience instead of promoting narrative delivery. There are a range of experiments on narratives and immersion to solve this issue in VR films. Floating Tent applies hand gestures and immersive effects found in game elements and does not disturb narrative delivery by setting proper spaces and employing a direction technique to enable the melting of narratives into the characteristics of the spaces. There are time limits to offsound and mission performance, and devices fit for apocalyptic spatial expressions are made through a program. One of measures for the increasingly growing interactive storytelling in VR films is effective immersion. In narrative delivery, it is important to consider spatial setting and immersion to enable active intervention into events for immersion rather than passive audience only supposed to watch characters' acting.

• Journal of the Semiconductor & Display Technology
• /
• v.18 no.4
• /
• pp.116-119
• /
• 2019

User interface/experience and realistic game manipulation play an important role in virtual reality first-person-shooting game. This paper presents an intuitive hands-free interface of gaming interaction scheme for FPS based on user's gesture recognition and VR controller. We focus on conventional interface of VR FPS interaction, and design the player interaction wearing head mounted display with two motion controllers; leap motion to handle low-level physics interaction and VIVE tracker to control movement of the player joints in the VR world. The FPS prototype system shows that the design interface helps to enjoy playing immersive FPS and gives players a new gaming experience.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2018.06a
• /
• pp.250-252
• /
• 2018

최근 차세대 미디어 중 하나로 가상의 공간내에서 현실적인 경험과 환경을 사용자에게 제공해 줄 수 있는 몰입형 미디어가 각광받고 있다. 이러한 가상현실 세계를 제공할 수 있는 VR미디어의 등장은 몰입형 미디어가 점차적으로 추구하는 실감서비스의 발전 형태를 단적으로 보여주고 있으며 사용자의 움직임에 따라 보다 자연스러운 현실감 및 몰입감을 지원하는 노력이 지속적으로 연구되고 있다. 이러한 추세를 반영하듯, MPEG은 최대 6DoF 사용자 움직임을 지원함과 동시에 고해상도의 VR 해상도를 제공하는 몰입형 미디어 요소기술 개발을 위하여 MPEG-I(Immersive) 표준화를 진행 중에 있다. 본 논문은 종래 3DoF 움직임(회전운동)을 지원함과 동시에 병진운동에 따라 360VR영상 내 가상시점을 매핑함으로써 보다 자연스러운 몰입감을 제공할 수 있는 6DoF지원 360VR 테스트 플랫폼을 제안한다.

• Journal of Broadcast Engineering
• /
• v.27 no.6
• /
• pp.848-859
• /
• 2022

This paper presents a novel 360-degree video streaming system for large-scale immersive displays and its ongoing implementation. Recent VR systems aim to provide a service for a single viewer on HMD. However, the proposed 360-degree video streaming system enables multiple viewers to explore immersive contents on a large-scale immersive display. The proposed 360-degree video streaming system is being developed in 3 research phases, with the final goal of providing 6DoF. Currently, the phase 1: implementation of the 3DoF 360-degree video streaming system prototype is finished. The implemented prototype employs subpicture-based viewport-dependent streaming technique, and it achieved bit-rate saving of about 80% and decoding speed up of 543% compared to the conventional viewport-independent streaming technique. Additionally, this paper demonstrated the implemented prototype on UCSB AlloSphere, the large-scale instrument for immersive media art exhibition.

• Journal of Broadcast Engineering
• /
• v.25 no.7
• /
• pp.1052-1062
• /
• 2020

As the market demand for immersive media increases, an efficient streaming method is required in consideration of network conditions while maintaining the user's immersive experience. Accordingly, transmitting a viewport with relatively high-quality, such as tile-based streaming, is mainly used. But there still remains a lot of technical challenges, such as quickly providing a new viewport in high-quality according to the gaze. To solve the aforementioned problem, in this paper, we propose a method of configuring and transmitting a supplemental tile set through the predicted direction, and a range of stable utilization of the transmitted supplemental tile set.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.01a
• /
• pp.493-494
• /
• 2023

해상에서 운항되는 선박에서 인명사고가 발생하면 육상과 달리 적시에 의료지원을 받기 구조적으로 어렵다. 특히 연안선박의 경우 원양선에 비해 상대적으로 고령의 선원들이 승무하고 있기 때문에 인명사고가 빈번하며 인명사고에 취약하다. 본 연구는 AR과 VR과 같은 실감기술을 기반으로하는 연박선박의 원격의료지원 모델 개발하기 위한 방향성을 제시하고자 한다.

• Smart Media Journal
• /
• v.11 no.9
• /
• pp.75-80
• /
• 2022

Recently, research and development on immersive virtual reality(VR) technology to provide a realistic experience is being widely conducted. To provide realistic experience in immersive virtual reality for VR participants, virtual environments should consist of high-realistic environments using 3D reconstruction. In this paper, to acquire 3D information in real space using multiple cameras in the reconstruction process, we propose a novel method of optimal camera placement for accurate reconstruction to minimize distortion of 3D information. Through our approach in this paper, real 3D information can obtain with minimized errors during environment reconstruction, and it is possible to provide a more immersive experience with the created virtual environment.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2019.06a
• /
• pp.238-239
• /
• 2019

현재 MPEG은 최대 6DoF(Degrees of Freedom) 사용자 운동시차를 지원함과 동시에 고해상도의 360VR 서비스를 제공하기 위한 영상 포맷, 부호화 등 요소기술에 대한 MPEG-I(Immersive) 표준화를 진행 중에 있다. 6DoF는 가상 공간 내 임의의 위치에서 운동시차를 제공하는 것으로 이를 획득 및 재현하기 위한 360VR 영상 표현 및 포맷에 대한 연구가 필수적으로 요구된다. 이에 본 논문은 제한된 공간 내 임의의 위치에서 사용자에게 자연스러운 6 자유도를 제공하기 위한 360VR 영상 포맷을 제안한다. 실험결과 제한된 공간 내에서 사용자에게 자연스러운 운동시차를 제공할 뿐만 아니라 향후 실사 환경에서도 획득 및 적용 가능성을 확인하였다.

• International Journal of Internet, Broadcasting and Communication
• /
• v.13 no.3
• /
• pp.73-83
• /
• 2021

With the development of science and technology, virtual reality (VR) has become increasingly popular, being widely used in various fields such as aviation, education, medical science, culture, art, and entertainment. This technology with great potential has changed the way of human-computer interaction and the way people live and entertain. In the field of animation, virtual reality also brings a new viewing form and immersive experience. The paper demonstrates the production of VR animation and then discusses camera's position in VR animation. Where to place the VR camera to bring a comfortable viewing experience. The paper, with the proxemics as its theoretical framework, proposes the hypothesis about the camera position. Then the hypothesis is verified by a series of experiments in animation to discuss the correlation between camera position and proxemics theory.

• Journal of Korea Game Society
• /
• v.21 no.3
• /
• pp.147-156
• /
• 2021

In this paper, we planned to see the positive effects of the immersive virtual environment. In particular, the positive effect of presence on physical performance was explored. A total of 25 participants were recruited for this experiment and his/her physical performance was measured by Electromyography (EMG) while they were exercising (rowing), and presence was measured by a self-reported measure. The participants were randomly assigned to experience either a) Virtual Reality (VR) or b) non-VR (2D screen) condition when they played the exergame. The result showed that 1) there was a positive relationship between representation mode and presence and 2) the higher level of presence reinforced the user's physical performance. The limitation of the study and future study were also discussed.