• Proceedings of the Korea Multimedia Society Conference
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• 2000.04a
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• pp.421-424
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• 2000

XML 의 응용 예로 3DML은 VRML의 차기 사양인 X3D 와 비교될만한 언어이다. XML에 기반하여 3차워 공간 데이터를 마치 미로를 만들 듯 기호화 된 문자들로 하나의 평면 (Level)을 구성하면 그에 해당되는 물체들로 이루어 진 가상공간이 만들어진다. 하지만, 고정된 가상공간만을 저작할수 있으며 다중 사용자환경을 지원하지 않는다. 본 논문은 아바타를 통해서 가상공간을 탐험할 수 있도록 XML의 한 응용된 언어로써 AML을 설계하고 인식할수 있는 뷰어를 통해 아바타의 애니메이션을 수행 방법을 기술하였다.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1992.08a
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• pp.72-76
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• 1992

평면파 수치모형 해석시 가상경계에 평행한 입사각을 갖거나, 다방향의 입사파가 가상경계로 동시에 입사되는 경우에는 무처리 시 수치 반사가 발생되므로 해에 악영향을 미친다. 따라서 이러한 경우에 대해 가상경계에서 파랑 Energy 투명하게 통과시키는 고차원 무반사 경계조건에 대해 연구하였다. 이들 조건식의 수학적 안정성을 분석하기 위해 phperbolic system에서 normal-mode 분석을 수행하였다. 1차 및 2차의 고차원 무반사 경계조건을 Galerkin 가중잔차법을 이용 유한요소 모형에 적용하였으며 이들에 대한 특성을 시험하기 위해 수치실험을 실시하였다.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.95-96
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• 2016

3d 게임 혹은 애니메이션 툴로 제작된 인터렉티브 아트 작품은 디스플레이를 통해 표현 될 때 가상의 입체공간이 시각적 평면 상태로 전달되는 물리적 한계를 가지게 된다. 관람자의 몸의 움직임과 가상현실의 시각적 재현, 물리적 공간에서 물체의 변화와 움직임을 동시에 경험한다면, 다양한 감각과 자극으로 작품의 몰입도를 높이고 전달하고자 하는 내용에 집중도를 높을 수 있다. 이 프로젝트에서는 이러한 복합적인 인터렉션을 통해 현대사회의 가상과 현실의 모호성을 표현하고, 삶의 본질과 현상에 대한 철학적 질문을 제시한다.

• Cartoon and Animation Studies
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• s.32
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• pp.315-333
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• 2013

This study aims to investigate that today's Mixed Reality Technology did not appear suddenly but has its beginnings in 20th century Visual and Interactive Art. First, Photographic Art expressed three-D on the two-dimensional plane and mixed images of reality and virtuality. Photogram made people experience both two-dimensional images and three-dimensional effects concurrently, and Photomontage combined various photos and mixed reality and virtuality. Next, Cinema tried to combine virtuality and reality using objets and CG. Early Cinema composed films and real objets. As computer technology developed, Cinema composed objet CG on real images and then tried background CG compositing. Finally, Telepresence Art tried a new possibility of Mixed Reality breaking the boundary between reality and virtuality, subject and object. It oscillates between virtual space in reality and real space in virtuality, or represents Mixed Reality by remote control of long distance participants. In the future, for the development and direction of Mixed Reality, there will be more need of referring to Visual and Interactive Art.

• Journal of the Korean Geographical Society
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• v.41 no.2 s.113
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• pp.212-226
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• 2006

Surface data generally represent continuous distribution of geographical or social phenomena of a region in urban analysis. Instances include distribution of temperature, population of region, and various distributions related to human activities. When spatial data are given in the form of surface, surface comparison is required as a way of comprehending the surface change or the relationship between two surfaces. As for previous approaches of surface comparison, there are visualization, quantitative methods and qualitative method. All those approaches, however, show the difference between two surfaces in a limited way. Especially, they are not able to distinguish spatial difference between two surfaces. To overcome such problem, this paper proposes a method of comparing two surfaces in terms of their spatial structure. Main concept of the method comes from earth moving problem and the method is named minimum surface transformation, here. When a surface is transformed into another, total surface volume moved in the process of transformation should be the minimum. Both quantitative and spatial differences between two surfaces are evaluted by total surface volume moved and the distribution of moved surface volume of each cell respectively. The method is applied to hypothetical and actual data. From the former, it is understood that the method explains how two surfaces are quantitatively and spatially different. The result of the latter shows that moved total surface volume decreases as time goes by which fits the actual situation that population change rate gets smaller. Concerning the other measure of surface difference, the distribution of $X_{ij}$ describes detailed flow of surface volume than that of simply subtracting surface volume by indicating to what direction the population change occurs.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.1246-1251
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• 2009

Second Life is a massive multi-user on-line environment; "a 3D virtual world where users can socialize, connect and create using voice and text chat" (http://www.secondlife.com). The paper explores the process and methods to establish a contemporary art exhibition that incudes various shapes and characteristics of art; paintings, 3D sculptures, time-based video arts, technical based arts, and so on. We have also discuss about the technical limitations to make virtual museums in the Second Life and recognitions between human and art works.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.35 no.12
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• pp.55-64
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• 2019

The purpose of this study was to analyze the affection of plan configuration on human emotion using Virtual Reality. A total of four different plan configuration was selected according to the prior study and built using Virtual Reality. The EEG was measured and then calculated using FFT to measure human emotion in different plan configurations. The measurements were shown to lead there was a significant statistical difference in four types of brainwaves between the plan types(p<0.05). This indicates that there is a possibility of plan configuration may exacerbate psychological disorder among single-person household and suggests that it is possible to counteract those stress among single-person household by changing the plan configuration in the earlier designing stage.

• Archives of design research
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• v.11 no.2
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• pp.83-92
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• 1998

If the Industrial Revolution had been the first industrial revolution. our 21st century will witness a second industrial Revolution. Namely. we will attest to a revolution whereby we will be freed from brain work by automation systems. computers and artificial intelligence. The technological revolution of the Information society has also resulted in various changes in the area of design. Designers almost depend on the newest computers of advanced functions to drastically reduce the production time. maximize the effects. save the cost and differentiate the design products for a stronger competitiveness. Accordingly. the media of design expression are changing. In short. the design works which had been done on the plane are now being expressed on the three-dimensional cyber space. Thus, this study alms to review the effects. positive and negative. of such a trend on the design.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.42 no.4 s.304
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• pp.87-94
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• 2005

3D image mosaicking is useful for 3D visualization of the roadside scene of urban area by projecting 2D images to the 3D planes. When a sequence of images are filmed from a side-looking video camera passing long distance areas, the ghost effect in which same objects appear repeatively occurs. To suppress such ghost effect, the long distance range areas are detected by using the distance between the image frame and the 3D coordinate of tracked optical flows. The ghost effects are suppressed by projecting the part of image frames onto 3D multiple planes utilizing vectors passing the focal point of frames and a virtual focal point. The virtual focal point is calculated by utilizing the first and last frames of the long distance range areas. We demonstrate algorithm that creates efficient 3D Panoramic mosaics without the ghost effect at the long distance area.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10c
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• pp.499-501
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• 2000

가상랜은 물리적 위치에 관계없이 마치 하나의 LAN에 연결되어 있는 것처럼 통신할 수 있는 구조로 브로드캐스트 도메인을 제한하여 대역폭 낭비를 감소시키고 전체 네트워크의 효율을 증가시킨다. Newbridge사는 IP서브넷의 주소를 가상랜과 매핑하여 ATM-LAN 스위치 망에서 3계층 가상랜을 구성하는 VIVID 시스템을 개발하였다. 이 시스템에서는 하나의 라우트 서버에서 주소 해석과 가상랜 구성 및 브로드캐스트 데이터 전송을 모두 담당하기 때문에 망의 규모가 커지게 되면 라우트 서버가 병목 지점이 될 수 있다. 이와 같은 문제점을 해결하기 위해 택할 수 있는 방법 중 한 가지는 다중의 라우트 서버를 두는 것이다. 본 논문은 VIVID 시스템에 여러개의 라우트 서버를 두는 구조로서 평면적인 구조와 계층적인 구조 두 가지를 제시하고 시뮬레이션을 통하여 각 구조의 특성을 비교 분석하였다. 시뮬레이션 결과, 브로드캐스트 세션의 길이와 브로드캐스트 세션 내에서의 브로드캐스트 데이터 프레임 발생 간격 등에 의해 제시한 두 가지 모델의 성능이 변하게 되며, 확장성과 데이터 전송의 효율성간에 서로 상쇄 효과가 있음을 볼 수 있었다.