• Journal of Broadcast Engineering
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• v.22 no.1
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• pp.136-139
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• 2017

Recently, many companies and consumers has shown a lot of interest toward VR(Virtual Reality), so many VR devices such as HMD(Head mounted Display) and 360 degree VR camera are released on the market. Current encoded 360 degree VR video uses the codec which originally made for the conventional 2D video. Therefore, the compression efficiency isn't optimized because the en/decoder does not consider the characteristics of the 360 degree VR video. In this paper, we propose a method to improve the compression efficiency by using the reference frame which compensates for the distortions caused by characteristics the 360 degree VR video. Applying the proposed method we were able to increase the compression efficiency by providing better prediction.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.165-170
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• 2020

In this study, after applying VR 360-degree video contents for intravenous infusion education, basic data on whether VR 360-degree video can be applied as educational content in the future is prepared by grasping the empathy and flow of nursing students in graduating grades. The VR 360 degree intravenous infusion educational content was developed in four-step process of planning, production, modification and completion. The design of this study was descriptive research, and the study period was from November 9 to November 22, 2019. The subjects of this study were 4th grade nursing students at a university, totaling 64 students. Nursing students watched VR 360 degree intravenous infusion educational content using HMD(head mounted display) under the safety management of the researcher. As a result of the study, the empathy of nursing students was 5.32±0.88 points and the flow was 6.02±0.84 points out of 7-point scale. The VR 360 degree intravenous infusion educational content developed in this study can be used as an educational medium in subjects and comparative departments, and it is necessary to specifically develop and verify teaching and learning methods in future studies.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.8
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• pp.767-772
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• 2016

The purpose of this paper is to develop a gimbal system installed in the UFV(unmanned flight vehicles) for 360 degree VR video. In particular, even if the UFV rotated any direction the camera position is fiexd to minimize the shaking using the gyro sensor and the camera system is stable for taking $360^{\circ}$ panorama VR images.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.543-548
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• 2017

$360^{\circ}$panoramic image can give people an unprecedented visual experience, and there are many different ways to make a $360^{\circ}$panoramic image. In this paper, we will introduce two easy and effective methods from those many ways. The first one is through 48 photos to make a $360^{\circ}$panoramic image, the second way is through 6 photos to make a $360^{\circ}$panoramic image. We will compare those methods and tell the audience which one suits themselves. Through those easy design methods introduced above, we can see VR works design became easy and popular, normal people can also make $360^{\circ}$panoramic image, and it promotes the industry of VR image contents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.665-667
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• 2017

가상현실은 4차 산업 혁명의 키워드 중에 하나이다. 가상현실은 인간이 시간, 공간의 제약으로 인해 경험하지 못하는 것들을 새로운 플랫폼으로 경험하게 해주어 시간, 공간의 제약과 환경의 제약을 극복하게 해준다. 현재 게임으로 한정된 VR 콘텐츠를 사용자들이 촬영한 360도 동영상으로 보완할 수 있기 때문에 국내외 대기업에서도 360도 VR 동영상에 공을 들이고 있다. 특히, 360도 VR동영상은 방송, 쇼핑, 관광 등에 활용하기에 적합하여 관련 분야의 기업에서 360도 동영상을 활용하면 효율적인 비즈니스가 가능하다. 그러나 아직 국내에서는 본격적으로 360도 동영상 콘텐츠를 활용한 사례가 거의 없다. 본 연구에서는 360도 VR동영상에 대해 고찰하고 호텔기업에 활용 할 것을 제안하고 분석한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.519-521
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• 2022

본 논문에서는 교통약자들의 이동제한 및 한계와 코로나 19로 인한 관광산업의 손실을 해결할 VR/360도 가상현실을 통한 웹 플랫폼 개발을 제안한다. 이 연구는 활용될 자원인 계절과 날씨자료를 효율적으로 촬영 및 준비하여 기존의 VR/360도의 가상현실을 최대화하고, 기존의 로드뷰 API 및 VR기기의 응용을 다양화한다. 또한, 이 연구는 '관광지를 방문한다'라는 개념을 실외뿐만이 아니라 실내에서도 사실적으로 체험할 수 있음을 제시한다. 이때 사실적인 체험을 더욱 극대화하기 위하여 VR/360도에 접목된 계절과 날씨의 콘텐츠를 구매할 수 있게 하여 소비자에게 선택지 내에서의 다양성을 주고, 단순 체험이 아닌 관광산업의 경제적 이윤으로 연결한다. 본 논문에서는 예상결과를 통하여 기존의 단순 VR/360도 체험을 통한 가상현실에 비해 좀 더 다양한 환경 조성을 통한 콘텐츠와 관광산업의 개선 및 경제성 면에서 발전성을 보인다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.06a
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• pp.1241-1244
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• 2022

최근 K-Pop 을 위시한 예술공연 콘텐츠에 몰입형 미디어를 접목한 온택트 (Ontact) 미디어 스트리밍 서비스가 주목받고 있는 가운데, 본 논문은 일반적으로 사용되는 2D 디스플레이 또는 HMD (Head-Mounted Display) 기반 VR (Virtual Reality, VR) 서비스에서 탈피하여, 대형 가상현실 공연장을 위한 360 도 VR 비디오 스트리밍 시스템을 제안한다. 제안된 시스템은 Phase 1, 2, 3 의 연구개발 단계를 밟아 6DoF (Degrees of Freedom) 시점 자유도를 지원하는 360 도 VR 비디오 스트리밍 시스템을 개발하는 것을 최종목표로 하고 있으며, 현재는 Phase 1: 대형 가상현실 공연장을 위한 3DoF 360 도 VR 비디오 스트리밍 시스템 프로토타입의 개발까지 완료되었다. 구현된 스트리밍 시스템 프로토타입은 서브픽처 기반 Viewport-dependent 스트리밍 기술이 적용되어 있으며, 기존 방식과 비교하였을 때 약 80%의 비트율 감소, 약 543%의 영상 디코딩 속도 향상을 확인하였다. 또한, 단순 구현 및 성능평가에서 그치지 않고, 실제 미국 UCSB 에 위치한 대형 가상현실 공연장 AlloSphere 에서의 시범방송을 수행하여, 향후 Phase 2, 3 연구단계를 위한 연구적 기반을 마련하였다.

• Journal of Digital Contents Society
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• v.19 no.9
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• pp.1631-1639
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• 2018

VR 360 video contents requires new visual language research in that the viewer inevitably makes partial appreciation unlike traditional video contents. In this study, we paid attention to the fact that arrangement of events and background elements in the 360-degree extended background of VR 360 video contents will play a major role in guiding the audience. Therefore, this study focuses on the arrangement of events and background elements from a narrative point of view, and analyzed the aspects of VR 360 video contents cases.

• Journal of Broadcast Engineering
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• v.23 no.6
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• pp.876-885
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• 2018

Although e-sports broadcasting market based on VR(Virtual Reality) is growing in these days, technology development for securing market competitiveness is quite inadequate in Korea. Global companies such as SLIVER and Facebook already developed and are trying to commercialize 360 VR broadcasting technology which is able to broadcast e-sports in 4K 30FPS VR video. However, 2D video is too poor to use for 360 VR video in that it brings less immersive experience and dizziness and has low resolution in the scene. this paper, we not only proposed and implemented virtual camera technology which is able to capture in-game space as 360 video with 4K 3D by 60FPS for e-sports VR broadcasting but also verified feasibleness of obtaining stereo 360 video up to 4K/60FPS by conducting experiment after setting up virtual camera in sample games from game engine and commercial games.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.79-88
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• 2021

COVID-19 is putting the entire performance industry in a dire situation. One of the approaches to overcome this crisis is contactless performance business using video media. But, these contactless performance videos are now found to have their own issues. First, with the increasing demands for these videos, the need for higher-quality video products is also increasing. However, there are many organizations that cannot afford such an investment. Second, it is not possible to have the same unique experience of a live performance with the videos. 360-degree VR performance videos are now gaining attention as an alternative to cope with this issue. As such, the researcher reviewed the production of 360 VR performance videos in general based on the cases of the play and a children's story concert As a result, the researcher could confirm the three benefits of simulated 'live experience through a sense of reality', 'convenience of filming' and 'continuity of acting'. Also, the issues related to this approach including 'Lack of professional filming companies', 'Expensive viewing equipment', 'Absence of Platform' and 'Limitations of Camera Technology', among others have been identified, etc. Based on these findings, the researcher could propose strategies for improvement in order to utilize 360-degree VR performance videos.