• 한국게임학회 논문지
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• 제19권4호
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• pp.5-14
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• 2019

본 논문은 증강현실 게임 공간에 대하여 분석하고 기존 게임 공간을 참고하여 모바일 증강현실 게임의 공간에 대한 공간 분석 기준을 제시하고자 한다. 본 연구에서는 기존 게임 공간 분석과 제이슨 제랄드의 개인적, 행동적, 전망적 가상 공간 층위 분류, 가상 공간과 현실 공간의 상호작용성, 그리고 라브로프가 제시한 가상 공간에서 현존감을 결정하는 요인인 몰두, 조작, 탐색을 바탕으로 분류 기준을 제시하고 그에 따른 사례를 분석하였다. 이러한 분석을 통하여 증강현실 게임 공간 분석 기준을 제시하였다는 점에서 의의가 있으며 증강현실 게임 공간에 대한 다층적 연구가 지속되어야 함을 제언한다.

• 한국멀티미디어학회논문지
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• 제24권11호
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• pp.1518-1525
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• 2021

Due to the growth of VR industry and rise of digital twin industry, the importance of implementing 3D data same as real space is increasing. However, the fact that it requires expertise personnel and huge amount of time is a problem. In this paper, we propose a system that generates point cloud data with same shape and color as a real space, just by scanning the space. The proposed system integrates 3D geometric information from lidar and color information from stereo camera into one point cloud. Since the number of 3D points generated by lidar is not enough to express a real space with good quality, some of the pixels of 2D image generated by camera are mapped to the correct 3D coordinate to increase the number of points. Additionally, to minimize the capacity, overlapping points are filtered out so that only one point exists in the same 3D coordinates. Finally, 6DoF pose information generated from lidar point cloud is replaced with the one generated from camera image to position the points to a more accurate place. Experimental results show that the proposed system easily and quickly generates point clouds very similar to the scanned space.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2008년도 춘계학술발표대회 논문집
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• pp.349-353
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• 2008

With the development of the internet and the spread of 'digital home', the communities in cyber space have been especially revitalized since the information-oriented society. Apartment houses provided networks that are well equipped with internet websites, which build up the houses as a virtual space unit. This study attempted to conducted the questionnaire research for apartment occupants in order to investigate their recognition of and participation in the virtual community and demand for the classified contents The results are as follows. 1) First of all, some easy-access programs are necessary to be groped while aggressive promotional strategies for virtual community that create interests of residents are required to make progress to increase the participation for virtual community 2) 'Gender', 'the form of ownership' and 'level of using the Internet' show significant differences in the case of 'needs in the like-minded people's association', the participation of residents that is induced by both online and offline can cause positive effects on community activity 3) Needs in community enrichment are generally high so that various contents development related to those are necessary. 4) Effects of virtual community on the residential community are on the whole affirmative.

• International Journal of Advanced Culture Technology
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• 제6권4호
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• pp.52-57
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• 2018

The purpose of this paper is to develop simulations that can be used for virtual education in dentistry. The virtual education to be developed will be developed with clinical training and actual case data of tooth extraction. This development goal is to allow dental students to learn the necessary surgical techniques at the point of their choice, not going into the operating room, away from time, space, and physical limits. I want to develop content using VR. Oculus Rift HMD, Optical Based Outside-in Tracking System, Oculus Touch Motion Controller, and Headset as Input / Output Device. In this configuration, the optimization method is applied convergent, and when the operation of the VR contents is performed, the content data is extracted from the interaction analysis formed in the VR engine, and the data is processed by the content algorithm. It also computes events and dental operations generated within the 3D engine programming and generates corresponding events through data processing according to the input signal. The visualization information is output to the HMD using the rendering information. In addition, the operating room environment was constructed by studying lighting and material for actual operating room environment. We applied the ratio of actual space to virtual space and the ratio between character and actual person to create a spatial composition at a similar rate to actual space.

• 천문학회지
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• 제38권2호
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• pp.85-88
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• 2005

Construction of the Virtual Observatory (VO) is a great concern to the astronomical community in the 21st century. We present an outline of the concept and necessity of the va and the current status of various VO projects including the 15 national ones and the International Virtual Observatory Alliance (IVOA). We summarize the possible science cases that could be solved by using the VO data/tools, real science cases which are the results of using current VO tools, and our own work of using AstroGrid, the United Kingdom national VO, for a research on star formation history of galaxies.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2004년도 추계학술발표대회 논문집
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• pp.80-83
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• 2004

It is impossible to do real verification on design spaces before their completions due to the characteristics of building and interior space designs. So, in designing spaces, designers should reflect their real experiences in their lives into their design works. 3D games where GPU and other kinds of advanced technologies have bee applied first show their leads in technologies have bee applied first show their leads in technologies about 5 years than VRML. Those games which are produced reflecting real environment as it is could be regarded as the most excellent tool in their completeness level of physical environment due to their characteristics. This means that if 3D game engines employing GPU are used effectively they could be used as a presentation tool for virtual spaces. This study studies the expressions of virtual constructions through 3D game engines employing GPU, not in VRML-based virtual spaces on Webs but in immersion-type virtual spaces.

• ETRI Journal
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• 제30권4호
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• pp.618-620
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• 2008

A distributed virtual environment (DVE) allows multiple geographically distributed objects to interact concurrently in a shared virtual space. Most DVE applications use a non-replicated server architecture, which dynamically partitions a virtual space. An important issue in this system is effective scalability as the number of users increases. However, it is hard to provide suitable load balancing because of the unpredictable movements of users and hot-spot locations. Therefore, we propose a mechanism for sharing roles and separating service regions. The proposed mechanism reduces unnecessary partitions of short duration and supports efficient load balancing.

• 한국콘텐츠학회논문지
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• 제7권10호
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• pp.115-125
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• 2007

본고는 유저 활동의 중요성, 유저간의 소통의 중요성, 플레이어 캐릭터의 성장과 변형을 통한 정체성 확립의 중요성을 중심으로 가상공간 커뮤니케이션의 특성을 분석하고, 이를 통해 원만한 사회관계를 활성화하고자 그 방안을 모색하고 유저들이 가상 사회 안에서 보다 책임 있는 행동을 유발하도록 제안하였다. 하루에도 수 천 명이 접속하여 교류하는 가상 공간에서 유저는 솔로스토리를 진행하며 타인과의 인간 관계를 통해 자신의 정체성을 찾게 된다. 무엇보다도 중요한 것은 가상 공간을 사회로 인식하고 타인에 대한 언행에 대해 연대 책임 의식을 갖는 유저들의 자세일 것이다.

• 한국게임학회 논문지
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• 제19권3호
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• pp.33-42
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• 2019

본 논문은 가상현실(Virtual Reality)속 입체 공간에서 동양화 중 '산수화'를 표현할 수 있는 방법에 대해 연구한 결과이다. 그림 속으로 들어가 교감하며 감상하는 동양화의 특성과 가상현실이라는 매체가 가진 '몰입성'의 유사점을 중심으로 동양화의 대표적인 특징 세 가지(여백, 시점, 그림자)를 정리하고, 디지털 콘텐츠 속에서 구현하는 과정을 연구했다. 자연스러운 수묵기법의 표현을 위해 산, 나무 텍스쳐를 제작했고 콘텐츠 환경으로 여백, 그림자를 표현했으며, 동선 스토리텔링으로 시점을 재현했다. 단순히 동양화의 표현유형을 적용시킨 콘텐츠가 아닌, 체험자가 실시간으로 시점을 변환하며 감상 할 수 있는 차별화된 콘텐츠라는 점에 의의를 둔다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.1625-1628
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• 2003

Recently the VR technique has evolved into a mixed reality (MR) technique, in which a user can observe a real world in front of him/her as well as virtual objects displayed. This has been realized by the employment of a see-through type HMD (S-HMD). We have been developing a mixed reality space employing the MR technique. The objective of our study is to realize a virtual human that acts as a man-machine interface in the real space. It is important in the study to create a virtual human acting naturally in front of a user. In order to give natural motions to the virtual human, we employ a developed motion capture technique. We have already created various 3-D human motion models by the motion capture technique. In this paper, we present a technique for creating a virtual human using a human model provided by a computer graphics software, 3D Studio Max(C). The main difficulty of this issue is that 3D Studio Max(C) claims 28 feature points for describing a human motion, but the used motion capture system assumes less number of feature points. Therefore a technique is proposed in the paper for producing motion data of 28 feature points from the motion data of less number of feature points or from incomplete motion data. Performance of the proposed technique was examined by observing visually the demonstration of some motions of a created virtual human and overall natural motions were realized.