• 한국실내디자인학회논문집
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• 제25호
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• pp.176-183
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• 2000

The purpose of this study is to show the implications of the term "digital architecture," which are realized in the current architecture. To do this, I first observe its theoretical background and then analyze the works of Marcos Novak, Kas Oosterhuis, and Lars Spuybroek, all of whom are called the typical digital architects. In particular, this study tries to show that the digital architects are introducing the non-Euclidean multi-dimensions and the cyberspace and applying the notions of liquid architecture, transarchitecture, body-building, and body-building, and body-motorized system into their works. Finally, I conclude that the digital architecture anticipates the direction of the future architecture, in which the virtual world is merged with the real world, the digital space is realized in the real space, and the human is completely harmonized with nature.th nature.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 ITC-CSCC -1
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• pp.470-473
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• 2000

Digital watermarking is a technical solution to the copyright problem and is a necessary technique to protect copyright of multimedia content. Recently, there are many digital watermarking methods that deal in grey scale still images. However, only a few researchers are interested in digital watermarking fro video and color images. In this paper, we focus on digital watermarking for color images. At first, in order to embed the watermark signal in color image, we converted RGB color space to YCbCr color space which is a world-wide digital component video standard. In addition, we adopted the acceptable degree of color difference in order to keep the invisibility.

• 디지털융복합연구
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• 제10권10호
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• pp.447-456
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• 2012

공간과 형태 디자인에 있어서 스터디모델은 완성될 공간이나 형태가 디자인되는 공간과 형태에 구체적인 시각적 매개체를 제공하며, 보다 근본적으로 디자인도면에 대한 상호 보완적 수단으로서 이용된다. 즉 스터디모델은 2차원적인 속성을 지니는 디자인 도면에 3차원적인 이해 수단을 추가적으로 부여한다. 따라서 디자인이 진행되는 동안 구체적인 공간의 형태와 공간구성을 디지털스터디모델을 이용하여 자유로운 각도에서 시각적으로 감지하며 공간과 형태를 분석하게 해준다. 일반적으로 유형적인 재료를 사용하여 제작되는 스터디모델은 디자인 과정에서 디자인 내용의 변경과 스터디모델의 용도에 따라서 여러 번 제작되어야 하며, 디자인도면과 모델의 관계는 공간의 지각과 이해를 통해서만 이루어진다. 이것은 디자인도면과 스터디모델 매체사이의 상호보완성이 동시에 이루어지지 않기 때문이다. 그러나 본 연구에서 제안된 3차원 디지털 디자인 프로세스를 이용하면, 즉각적인 시각적 표현과 더불어 디자인 단계에서 다양한 분석과 디지털 디자인모델 결과물들을 얻어낼 수 있게 된다. 결국 디자인계획과 디자인 구체화 단계에서 디지털디자인 프로세스를 활용할 경우 입체적 표현을 실시간으로 적용할 수 있으며, 3차원 디지털모델을 시각화하여 최종 디자인을 위한 공간과 형태의 다양한 분석이 가능하게 된다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.536-538
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• 2017

나로우주센터에서는 한국형우주발사체(KSLV-II)의 이륙순간 발사체 주요부분에 대한 초고화질(UHD) 고속영상 획득 및 영상분석을 위해서 발사대 주변과 발사대 타워에 초고화질 고속 디지털카메라 시스템을 설치할 계획이다. 본 논문에서 현재 나로우주센터에서 운용중인 고속 디지털카메라 시스템의 구성과 한국형우주발사체 발사임무 수행을 위한 초고화질(UHD) 고속 디지털카메라 시스템의 구성을 비교하여 기술하였다.

• 한국실내디자인학회논문집
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• 제17권3호
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• pp.156-164
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• 2008

Through staggering advancements of technology and network as we know them as digital revolution, we have established a foundation of space in which we can express reality by eliminating the boundaries between expression, space, and movement. There are many ongoing approaches that aim to overcome the physically-fixed property of space where the mathematical-geometric notion of Voronoi Diagram is one of them. Although the repetitive increment based on self-organization during the process in which space is generated by the Voronoi Diagram forms a pattern and focuses on the formation, its pattern is not restricted to a single method of expression but evolves over self-control. The result of having analyzed spaces generated by the Voronoi Diagram in this study can be summarized as follows. First, the Voronoi computation method with self-organization property creates multiple levels, increments, and evolves through feedbacks among changes with the slightest order and in the absence of control. Secondly, after forming a pattern through such feedbacks comes the differentiation phase due to the presence of different properties. Thirdly, a space that has gone through the generation process retransforms through active interaction between changes and it obtains ambiguous boundaries and a repetitive pattern. This leads to an evolution of space through repetitive increments based on self-organization. Such flexible space creation is supported by various digital technologies where we believe a converging application of these studies, sciences, engineering concepts, and space design is and effective and new method in terms of space creation.

• 한국항공우주학회지
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• 제50권12호
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• pp.909-909
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• 2022

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.147.3-147
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• 2001

We have proposed a digital control method, where the controlled variable is a joint angular velocity, of space robot manipulators using the transpose of Generalized Jacobian Matrix. The explicit relationship between the control law and the sampling period, however, is unknown because the controller gains include the sampling period implicitly. This paper presents a novel digital control method which explicitly describes the relation between the sampling period and the controller gains. Computer simulation of a 3-DOF planar space robot manipulator is peformed. Simulation result demonstrates the effctiveness of the proposed method.

• Journal of Power Electronics
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• 제10권3호
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• pp.277-284
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• 2010

This paper presents a novel hybrid carrier based space vector modulation for cascaded multilevel inverters. The proposed technique inherits the properties of carrier based space vector modulation and the fundamental frequency modulation strategy. The main characteristic of this modulation are the reduction of power loss, and improved harmonic performance. The carrier based space vector modulation algorithm is implemented with a TMS320F2407 digital signal processor. A Xilinx Complex Programmable Logic Device is used to develop the hybrid PWM control algorithm and it is integrated with a digital signal processor for hybrid carrier based space vector PWM generation. The inverter offers less weighted total harmonic distortion and it operates with equal electrostatic and electromagnetic stress among the power devices. The feasibility of the proposed technique is verified by spectral analysis, simulation, and experimental results.

• 한국실내디자인학회논문집
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• 제20권4호
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• pp.63-73
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• 2011

In the middle of that a information form is being formlessly changed to diverse deirections, a design and a space as physical consequence show not only a allegory but mutually relational charicteristic meaning a nonboundary and nonlinear form by development of modem digital culture. Following development of the modern digital culture, a design and space which are physical results, show a point of correlative specificity, allegory, nonlinear and nonboundary, Not only a design and culture but also various circles handle a hypertext as a representative pivot in this change. this has same contexts as rhizome possessing a asignifiante and nomadic characteristic said by Felix Guattari and Gilles Deleuze. An ideal of rhizome space shows historical decisions, unexpected accidents, a concepts, an individual. a group, social compositions above an contrifugal exterior force, This study examines into surroundings designed by a hypertext and rhizome through a case accordingly and infers an ultramodern characteristic in conventional precognition with synthesizing a peculiarity of the digital generation space.

• 한국디지털건축인테리어학회논문집
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• 제4권1호
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• pp.17-25
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• 2004

The architectural space is the involuntary place where man lives and experiences, and as a 3 dimensional space through the continuous experience with the concept of 4th dimension of time, it provides the observers with the dramatic space imagery. These kinds of space experiences are experienced mentally and perceptively through the physical elements of inner and outer space of the architectural buildings, and this space imagery is created here by all the space composing elemensts of the building. These space experiences are caused by the changing processes of the space characteristics, and the observers perceive the changes in space characteristics. These changing processes of inner and outer space, space versus space, and unit space, which are perceived by the observer, could be called as 'the transition' and thd changes of the space characteristics as 'the transition characteristics'.