• 제목/요약/키워드: ambiguous boundary

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생성적 디자인을 이용한 가구디자인의 특성에 관한 연구 - 프랙탈 기하학과 보로노이 다이어그램을 적용한 가구디자인을 중심으로 - (A Study on the Characteristics of Furniture Design Using Generative Design - Focus on the Furniture Design using Fractal Geometry and Voronoi Diagram -)

  • 이진욱
    • 한국실내디자인학회논문집
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    • 제20권1호
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    • pp.89-97
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    • 2011
  • Furniture design is no exception to human desire for pursuit of the nature. In various design fields, it has turned out nature-decorative method in the past, and also recently it has turned out bio-adaptive method which is more root design process using principal of generation in nature world. The purpose of this study is to analyze application methods and characteristics of fractal geometry and voronoi diagram which are most representative principals of generative design in nature by research on the example of furniture design using these principals. The results of having analyzed fumitures by generative design can be summarized as follows; design principals of fractal; superposition, scaling, repetition & gradation, deformation, distortion and voronoi diagram; individual speciation, variational patten, repetition gradation, ambiguous boundary create new design concept and emergent form in furniture design. Application methods are 'form emergence by algorithm', 'conventional process based on principals of generative design', and 'reproduction of pattern from generative design'. Biological reinterpretations and new explorations of principals of nature generation offer unbounded possibilities for furniture design.

고역통과 필터를 이용한 그리드 패턴 영역분할 (Grid Pattern Segmentation Using High Pass Filter)

  • 주기세
    • 한국항행학회논문지
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    • 제11권1호
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    • pp.59-63
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    • 2007
  • 본 논문은 윤곽선이 불분명한 상황에서 체형의 윤곽선과 신체 내부의 그리드 패턴들을 추출하기 위한 이미지 분할 알고리즘을 서술한다. 이미지 분할 방법은 문턱 값을 이용한 이진화 기법을 사용한다. 복잡한 형상을 지닌 물체의 3차원 정보를 추출하기 위한 노이즈 제거 알고리즘은 $3{\times}3$ 하이브리드 고역통과 필터 방법을 제안한다. 본 하이브리드 고역통과 필터 알고리즘은 노이즈 제거 시간이 기존 방법에 대하여 훨씬 단축되기 때문에 3차원 체형, CAD 시스템, 공장자동화와 같은 복잡한 형상을 지닌 물체의 3차원 정보를 추출하는데 적용할 수 있다.

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MVRDV의 건축에 나타난 공간 구성 수법에 관한 연구 (A Study on Spacial Characterristics of MVRDV's Architecture)

  • 조영배
    • 한국실내디자인학회논문집
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    • 제17권1호
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    • pp.77-83
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    • 2008
  • MVRDV is most important architect as created interesting architectural space in contemporary architecture, and so they applies to the unique theory in their architecture. They used to architectural diagram, program, datascape, density as a design tool. Especially, they have create new architectural space and form in using architectural diagram, program, datascape, density, and void. So, this study is purposed to explain how they use as architectural tool to make composition of it's architectural space and is purpose to explain what is their main concept in architectural space. MVRDV's architectural space has fundamental methodology. That is Datascape on uncertainty and continuity between urban space and architectural space. The former consist in using diagram and architectural program and the latter consist in operating architectural void and inner continuity surface. The conclusion is follows 1. The mode of spacial composition by architectural void is correspond density of city as MVRDV's architectural thinking. 2. The mode of spacial composition by architectural program is ambiguous to the boundary between inner and exterior space by transparency. 3. The mode of spacial composition by architectural diagram make to generate the architectural form and space, through the reinterpretation and relocation of architectural program. 4. The mode of spacial composition inner continuity plane is make relative between site and inner space.

다중 모달 정합에 의한 Visible Human의 뼈 분할 방법 (Bone Segmentation Method of Visible Human using Multimodal Registration)

  • 이호;김동성;강흥식
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제30권7_8호
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    • pp.719-726
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    • 2003
  • 본 논문에서는 Visible Human 컬러 단면 영상에서 인접한 지방 영역과 색상 특성이 유사하여 구별이 매우 힘든 뼈 영역을 분할하기 위해 다중 모달 정합 방법을 제안한다. 뼈와 그 인접영역의 구별이 뚜렷한 CT 영상에서 뼈를 분할하고 두 영상의 정합을 이용하여 컬러 영상에서 최종 뼈 분할을 수행한다. CT 영상에서 뼈의 분할 방법은 임계값 기반 방법을 사용하였고, 정합은 두 영상에서 신체 부위를 임계값 기반의 방법을 사용하여 분할된 객체들의 경계를 상호 상관관계(cross-correlation)방법을 사용하여 수행하였다. 제안된 방법은 Visible Human 컬러 단면 영상 중에 뼈와 인접 지방이 유사하여 그 분할이 어려운 머리부위와 다리부위에 적용하여 고무적인 결과론 얻었다.

An algorithm for estimating surface normal from its boundary curves

  • Park, Jisoon;Kim, Taewon;Baek, Seung-Yeob;Lee, Kunwoo
    • Journal of Computational Design and Engineering
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    • 제2권1호
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    • pp.67-72
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    • 2015
  • Recently, along with the improvements of geometry modeling methods using sketch-based interface, there have been a lot of developments in research about generating surface model from 3D curves. However, surfacing a 3D curve network remains an ambiguous problem due to the lack of geometric information. In this paper, we propose a new algorithm for estimating the normal vectors of the 3D curves which accord closely with user intent. Bending energy is defined by utilizing RMF(Rotation-Minimizing Frame) of 3D curve, and we estimated this minimal energy frame as the one that accords design intent. The proposed algorithm is demonstrated with surface model creation of various curve networks. The algorithm of estimating geometric information in 3D curves which is proposed in this paper can be utilized to extract new information in the sketch-based modeling process. Also, a new framework of 3D modeling can be expected through the fusion between curve network and surface creating algorithm.

사회복지실천의 효율성 증대방안 모색을 위한 사회복지기관의 '숨은 규칙' (implicit rules) 찾기 (Identifying Implicit Rules in Social Work Agencies for the Exploration of Measures to Promote Efficiency of Social Work Practice)

  • 엄명용
    • 한국사회복지학
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    • 제46권
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    • pp.236-262
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    • 2001
  • This discovery-oriented study explored 31 social workers' perceptions of discrepancies between explicit and implicit rules in their work places that are supposed to affect the quality of social work services, and identified eight categories of dilemmas: (a) confused accountability or purpose, (b) ambiguous principle, (c) improper authority, (d) confused role of social workers, (e) conflict between ideal and reality, (f) confused work ethics, (g) confused boundary of workers' rights, and (h) binds. These eight categories revealed the real philosophy and purposes of social work agencies, work ethics and values prevalent among social work agencies, agencies' orientation toward clients, and the conditions of social support from the society in large. Instead of searching for discrete variables as separately responsible for inefficient social work services, this approach probed malfunctioning implicit rules in a holistic context to see if inefficient or ineffective provision of social work services is a logical response to a much larger and deeper nexus. Insight into discrepant rules does not solely ensure the improvement of social work practice in the field, particularly if their identification is simply used as another opportunity to blame and avoid self-responsibility. However, such discrepancies between implicit and explicit rules are real enough to the staff workers and agency administrators that they may want to begin the dialogue of contradictory rules as a way of sanctioning discussion of previously forbidden topics. This study provided the ground-work for the dialogue.

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Analysis of Urban Distribution Pattern with Satellite Imagery

  • Roh, Young-Hee;Jeong, Jae-Joon
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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    • pp.616-619
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    • 2007
  • Nowadays, urbanized area expands its boundary, and distribution of urbanized area is gradually transformed into more complicated pattern. In Korea, SMA(Seoul Metropolitan Area) has outstanding urbanized area since 1950s. But it is ambiguous whether urban distribution is clustered or dispersed. This study aims to show the way in which expansion of urbanized area impacts on spatial distribution pattern of urbanized area. We use quadrat analysis, nearest-neighbor analysis and fractal analysis to know distribution pattern of urbanized area in time-series urban growth. The quadrat analysis indicates that distribution pattern of urbanized area is clustered but the cohesion is gradually weakened. And the nearest-neighbor analysis shows that point patterns are changed that urbanized area distribution pattern is progressively changed from clustered pattern into dispersed pattern. The fractal dimension analysis shows that 1972's distribution dimension is 1.428 and 2000's dimension is 1.777. Therefore, as time goes by, the complexity of urbanized area is more increased through the years. As a result, we can show that the cohesion of the urbanized area is weakened and complicated.

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미디어 융합에 따른 대체현실게임의 분석 및 구축에 관한 연구 (The study for the analysis and implementation of Alternate Reality Game by media convergence)

  • 김재하
    • 방송공학회논문지
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    • 제13권5호
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    • pp.752-759
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    • 2008
  • 최근 방송과 통신의 융합은 미디어와 미디어 사이의 영역의 한계를 모호하게 하고 있다. 매체의 진화에 따른 디지털 기술의 발전에 따라 사용자는 상호작용성을 경험하였다. 특히 불특정 다수의 참가자가 실시간 환경 속에서 동일한 목표를 가지고 몰입 하거나 경쟁 하면서 만족을 추구하는 MMORPG(Massively Multi-player On line Role Play Game)는 사용자에게 새로운 형태의 문화와 만족감을 주고 있다. ARG(Alternative Reality Game)는 미디어의 융합에 의해 새로이 탄생한 대체현실게임으로, ARS, SMS, BLOG, Cafe, Message 등을 통해 사용자와 사용자간에 보다 더 현실적인 상호작용을 수행한다. 본 논문에서는 ARG를 소개하고, ARG의 구현, 설계, 구축의 방법을 인간의 사고와 미디어 측면에서 분석하였으며, ARG 활성화를 통해 방송의 새로운 방향을 제언한다.

렘브란트, 베르메르, 호퍼의 회화에 나타난 빛과 공간의 비교 분석에 관한 연구 (A Comparative Study on Light and Space in the Paintings of Rembrandt, Vermeer and Hopper)

  • 김종진
    • 한국실내디자인학회논문집
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    • 제18권6호
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    • pp.12-19
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    • 2009
  • The characteristics of light in the paintings of Rembrandt van Rijn, Johaness Vermeer and Edward Hopper are very different. While Rembrandt and Vermeer lived in the 17th century, Hopper lived in the 20th century. Although this time gap, comparative study on their light-space relationship is important because there are spatial similarities as well as light differences. Most three painters' works depict interior spaces with one person inside. The interior space is filled with different light and shadow. In the Rembrandt's paintings, only part of the figure is lit in the ambiguous darkness. In the Vermeer's paintings, the soft indirect light is filled in the domestic space and the boundary between the figure and space is blurred. In the Hopper's paintings, the direct sunlight invades the interior and the figure confronts with strong daylight. These light differences were caused by the artists' intentions as well as the environmental situations. 4 case paintings of each artist were analyzed by phenomenological aspects and computerized light brightness test. Scale models were built to re-construct the three different light characteristics. The model experimentation will have potential to develop 2 dimensional art analysis into 3 dimensional space design by means of light. However it was very difficult to construct the three lights, the experimentation shows they have unique characteristics that can be applied to spatial design studies.

GIS분석기법을 이용한 도시화 지역의 공간적 분포패턴에 관한 연구: 수도권의 도시성장을 중심으로 (A study on Spatial Distribution Pattern of Urbanized Area using GIS Analysis: Focused on Urban Growth of Seoul Metropolitan Area)

  • 정재준;노영희
    • 한국경제지리학회지
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    • 제10권3호
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    • pp.319-331
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    • 2007
  • 도시화 지역은 지역발전과 더불어 공간적 범위가 확대되고 있다. 수도권 역시 예외는 아니어서 1960년대 이후 우리나라의 경제개발을 주도하며 도시화 지역의 공간적 범위가 확대일로에 있다. 그러나 도시화 지역의 공간적 분포를 평가함에 있어 그 분포 양상이 집적형태인지 임의적 형태인지 아니면 분산된 형태인지는 정확히 판단하기 어렵다. 즉, 시기가 지남에 따라 도시화 지역이 확대되기는 하지만 정량적으로 그 분포를 판단하기란 쉽지 않다. 본 연구는 GIS의 통계적 분석 기법을 이용하여 도시화 지역의 확대와 성장이 도시화 지역의 분포 패턴에 어떠한 영향을 주었는지를 살펴보고자 하는 것이다. 시계열적 도시성장 과정에서 수도권 내 도시화 지역의 분포패턴을 파악하고자 래스터 기반의 GIS 분석방법, 방격 분석(quadrat analysis), 그리고 최근린 분석(nearest neighbor analysis)을 사용하였다. 실험 결과 수도권의 도시화 지역의 집적정도는 1980년대 초반까지는 증가하다가 그 후로는 약화되는 것으로 분석되었다. 또한 1980년대 중반 이후 수도권 내에서는 외연적 성장이 약화되고 비지적 도시성장 또는 도로망과 연계한 소규모 개발이 증가함을 알 수 있었다.

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