• International Journal of Advanced Culture Technology
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• 제9권4호
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• pp.194-203
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• 2021

Virtual reality is being increasingly used for healing and therapy for mental health. In this study, we developed VR-based immersive content that enables virtual travel without the limitations of time and physical conditions. We aim to develop and produce VR content for relaxation and meditation using the beautiful natural scenery. To make realistic and immersive content, we took a video of natural sceneries with a small UAV connected to a VR camera. The content was developed through stitching, video editing and post-processing of the initially captured video data, and then the created VR video was inserted into the VR device. The produced content will be helpful for stress and used to heal the mind and body of exhausted modern people by providing the place with great scenery and sound in an immersive way at any time.

• Journal of information and communication convergence engineering
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• 제21권3호
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• pp.239-243
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• 2023

Owing to the environment in which it has become difficult to face people, on-tact communication has been activated, and online video conferencing platforms have become indispensable collaboration tools. Although costs have dropped and productivity has improved, communication remains poor. Recently, various companies, including existing online videoconferencing companies, have attempted to solve communication problems by establishing a videoconferencing platform within the virtual reality (Virtual Reality) space. Although the VR videoconference platform has only improved upon the benefits of existing video conferences, the problem of manually summarizing minutes because there is no function to summarize minute documents still remains. Therefore, this study proposes a method for establishing a meeting minute summary system without applying cases to a VR videoconference platform. This study aims to solve the problem of communication difficulties by combining VR, a metaverse technology, with an existing online video conferencing platform.

• 한국실천공학교육학회논문지
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• 제1권1호
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• pp.51-54
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• 2009

In or automotive engineering education is introduced. Main objective of the system is teaching disassemble/assemble procedure of automatic transmission of a vehicle to students, who study automotive engineering. System includes vehicle transmission, set of tools and mechanical facilities, two video cameras, computer with developed software, HMD glasses and two LCD screens. Developed software gives instructions on assembling and disassembling processes of real vehicle transmission with the help of augmenting virtual reality objects on the video stream. Overlaying of 3D instructions on the technological workspace can be used as an interactive educational material. In disassembling process, mechanical parts which should be disassembled are augmented on video stream from video cameras. Same is done for assembling process. Animation and other visual effects are applied for better indication of the current assembling/disassembling instruction. During learning and training, student can see what parts of vehicle transmission and in which order should be assembled or disassembled. Required tools and technological operations are displayed to a student with the help of augmented reality, as well. As a result, the system guides a student step-by-step through an assembly/disassembly sequence. During educational process a student has an opportunity to return back to any previous instruction if it is necessary. Developed augmented reality system makes educational process more interesting and intuitive. Using of augmented reality system for engineering education in automotive technology makes learning process easier and financially more effective.

• 한국HCI학회논문지
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• 제10권1호
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• pp.29-41
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• 2015

3D 디스플레이, 진동, 서라운드 음향 등 다양한 감각자극을 활용한 영상실감 기술이 상용화되었으나, 후각을 사용한 영상의 실감향상에 대해서는 아직 뚜렷한 진전이 없다. 후각은 인간의 정서와 강하게 연합되어 있기 때문에, 이를 잘 활용한다면 높은 수준의 실감향상이 가능할 것으로 기대할 수 있다. 본 연구는 영상에 냄새를 암시하는 뚜렷한 대상(커피, 꽃 등)이 존재하지 않을 때, 영상의 색온도와 관련이 높은 향의 제시가 영상의 실감향상에 미치는 효과를 검증하였다. 이를 위해 먼저 48가지 향을 수집하여 1,500K (따뜻한) ~ 15,000K (차가운)의 색온도 척도를 통해 향과 색온도의 매칭을 실시하여, 따뜻한 혹은 차가운 색온도와 뚜렷한 매칭을 보인 향 8개 (따뜻한 향 4개, 차가운 향 4개)를 선정하였다 (실험 1). 이를 토대로 이미지와 영상에 따뜻한 (3,000K), 중립적인 (6,500K) 혹은 차가운 (14,000K) 색온도를 적용한 후, 따뜻한 혹은 차가운 향을 제시하여 향과 색온도의 일치도 (일치, 불일치, 중립)에 따라 실감이 얼마나 향상되는지 참가자들에게 7점 척도로 평정하게 하였다 (실험 2-3). 그 결과 향과 색온도가 일치할 때 참가자들은 불일치하거나 중립적일 때 보다 이미지와 영상의 실감을 더 높게 평가하였다. 본 연구는 영상에 후각 정보를 가진 구체적 대상이 없을 때에도 색온도 감성과 일치하는 향을 제공함으로써 영상실감 향상이 가능하다는 것을 보여준다는 점에서 중요한 실용적 가치가 있다.

• 디지털산업정보학회논문지
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• 제12권3호
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• pp.157-166
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• 2016

This paper presents the interior space information using 6D-360 degree immersive media video information. And we implement the augmented reality, which includes a variety of information such as position information, movement information of the specific location in the interior space GPS signal does not reach the position information. Augmented reality containing the 6D-360 degree immersive media video information provides the position information and the three dimensional space image information to identify the exact location of a user in an interior space of a moving object as well as a fixed interior space. This paper constitutes a three dimensional image database based on the 6D-360 degree immersive media video information and provides augmented reality service. Therefore, to map the various information to 6D-360 degree immersive media video information, the user can check the plant in the same environment as the actual. It suggests the augmented reality service for the emergency escape and repair to the passengers and employees.

• International Journal of Internet, Broadcasting and Communication
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• 제12권2호
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• pp.90-97
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• 2020

Recently, with the growth of mixed reality industrial infrastructure, relevant convergence research has been proposed. For real-time mixed reality services such as remote video conferencing, the research on real-time acquisition-process-transfer methods is required. This paper aims to implement an AR remote rendering method of volumetric 3D video data. We have proposed and implemented two modules; one, the parsing module of the volumetric 3D video to a game engine, and two, the server rendering module. The result of the experiment showed that the volumetric 3D video sequence data of about 15 MB was compressed by 6-7%. The remote module was streamed at 27 fps at a 1200 by 1200 resolution. The results of this paper are expected to be applied to an AR cloud service.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권6호
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• pp.1433-1448
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• 2013

This study presents empirical evidence of the benefit of viewing narrative video clips on embedded virtual reality (VR) websites of hotels to relieve travel anxiety. As the effectiveness of using VR functions to relieve travel anxiety has been shown, we proposed that a VR website enhanced with narrative video clips could relieve travelers' anxiety about accommodations by showing the important aspects of a hotel. Thus, we created a website with a narrative video showing the escape route from a hotel room and another narrative video showing the surrounding neighborhood. We then conducted experiments by having human subjects explore the enhanced VR website and fill out a questionnaire. The results confirmed our hypothesis that there is a statistically significant relationship between relief from travel anxiety and the use of narrative videos on embedded VR websites of hotels.

• 한국멀티미디어학회논문지
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• 제3권2호
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• pp.157-163
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• 2000

네트워크를 이용한 가상현실에 실시간 동영상이 도입되면서 가상공간은 더욱 현실감이 있게 되었다. 그러나 인터넷과 같이 자원을 예약할 수 없는 네트워크를 이용하여 가상현실을 제공하는 시스템에서 실시간 동영상을 처리하기 위해서 시스템의 확장성(scalability)을 고려하는 것은 중요하다. 본 논문에서는 실시간 동영상을 처리하는 가상현실 시스템을 위한 가상공간의 품질조정 방법을 제안하여 확장성을 고려한 네트워크형 가사연실 시스템을 설계 및 구현을 한다. 제안한 방법은 가상공간의 각 객체들의 중요도를 나타내는 IoP(Importance of Presence)를 제안하고, 가상현실 시스템에 과부하가 발생하면 제안된 IoP를 토대로 객체들의 품질을 제어함으로써 시스템의 확장성을 제공한다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2017년도 제56차 하계학술대회논문집 25권2호
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• pp.374-375
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• 2017

As the distribution of image contents is activated, users can easily access image contents through various routes and media.In this paper, we propose a new virtual reality (VR) system, which is based on the development of IT technology, in order to prepare for the fourth industrial revolution era.We propose a method of producing educational video contents that combines maximized virtual reality.

• 융합신호처리학회논문지
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• 제16권1호
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• pp.22-28
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• 2015

본 논문은 신문, 잡지, 앨범 등에서 추출한 정적인 영상으로부터 이와 연계된 동영상을 증강현실로 보여주는 서비스를 제공하는 시스템을 설계하고 구현하였다. 먼저, 매체에 인쇄되어 있는 원본 영상에 대하여 SURF 알고리즘을 이용하여 특징점을 추출하여 관련 동영상과 함께 저장한다. 다음으로 스마트폰 등의 모바일 기기의 카메라를 이용하여 이미지를 촬영하면, 이의 특징점을 실시간으로 추출하여 이와 매칭되는 원본 영상을 검색하여 연결된 동영상을 불러와서 스마트폰을 통해 증강현실로 보여준다. 제안 시스템은 안드로이드 스마트폰에 적용시켜 보았으며 테스트 결과, 인쇄매체의 이미지 일부가 오염 또는 훼손되어도 인식에 문제가 없이 잘 동작함을 확인하였다.