• 패션비즈니스
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• 제24권4호
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• pp.130-143
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• 2020

The development of three-dimensional (3D) printing technology is bringing new innovations to various fields such as health care, architecture, and fashion. 3D printing can be manufactured to suit the size of the consumer's body, modify the design to meet their tastes, and produce small quantities of various products. Therefore, 3D printing in the field of fashion has great potential. The purpose of this study was to investigate various application models of 3D printing for fashion design and analyze their characteristics after developing the fashion garment samples. First, the background of 3D printing was reviewed then, fashion designed by a 3D printing application was analyzed. As a result, four types of 3D printing applications were developed: object-attached, linkage, kinematics, and assembly. The object-attached type was the method of printing 3D material as an object in the intended shape and form and was attached to the garment by sewing. The linkage type referred to printing 3D material in small pieces of certain shapes that could be linked. The kinematics type was structures with hinges that could flex to fit the human body. The assembly type referred to developing 3D materials in female and male pieces such as nuts and bolts. By providing the advantages, disadvantages, trial-and-errors, and challenges of the 3D printing fashion design process, this study contributes to the effective applications and possibilities of future design.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 추계학술대회 논문집
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• pp.952-956
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• 1995

It is known that the 3D Solid CAD system can provide various information which is useful for implementing CAPP and CAE. However the commercial 3D CAD systems available today do not support the handling of non-geometric information such as geometry tolerance and surface finish. It is impossible to input the non-geometric information during designof parts while CAPP needs the information for selecting machine tools. fiztures, inspection method, etc. In this paper the need of research on handling tolerance information In 3D CAD systems is considered. The development of inspection planning support system is also explained with an example. The development of inspection planning support systm receives the design geometry information from the 3D CAD system in the form of 2D draft and generates the inspection data base and the inspection sheet through the user interaction.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 추계학술대회논문집 - 한국공작기계학회
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• pp.3-7
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• 2000

The authors have realized reconstruction of 3D shape using contacting method with pins and TCP/IP communication. In this paper, the working principal of the mechanism is proposed and tested. A special sensor system is designed as 148 matrix form to measure 3D shape. When contact occurs between pin and the plate of the sensor matrix, the position information of pins is sent to computer and raised height data of the pin is obtained by counter which accumlates encoder signal. So, all datum which contain 3-dimensional coordinate, is transferred using TCP/IP communication. Finally, 3D shape is reconstructured by Web browser of remote computer. The measuring result shows that the proposed mechanism is reliable and promising as a remote measuring device through Internet.

• 한국통신학회논문지
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• 제15권12호
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• pp.1002-1016
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• 1990

본 논문은 스테레오비젼 시스템을 설계 제작하고, 제작된 시스템을 가지고 3차원 이동물체의 변위평가 방법을 제안하였다. 이동물체의 추출은 차영상 알고리즘에 의해 추출하고, 3차원 이동물체의 기하학적인 위치좌표는 2개의 2차원 물체의 면적중심을 합성시켜 구하였다. 3차원 이동물체의 범위평가는 합성된 3차원 좌표값에 의해서 물체의 이동속도 및 거리, 이동궤적, 카메라와 물체 사이의 공간거리를 산출하여 입증하였다.

• 정보처리학회논문지D
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• 제12D권3호
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• pp.409-416
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• 2005

소프트웨어 개발 패러다임이 21세기에 들어서며 웹 기반으로 빠르게 전환되고 있으나 웹 환경에 적합한 품질 및 예측 매트릭에 대한 연구는 매우 미흡한 실정이다. 본 연구는 웹 소프트웨어의 규모와 객체 속성의 상관관계를 분석하여 실 업무에서 사용되고 있는 ASP 기반의 3개 프로젝트를 대상으로 결함 가능성이 높은 프로그램을 추출하고 프로그램 규모와 클래스 수나 메소드 수에 대한 선형회귀분석을 통하여 웹 소프트웨어의 규모 예측에 적합한 모델을 제안한다. 서버, 클라이언트, HTML의 복합구조를 가지는 웹 소프트웨어 중 자바스크립트 form 파일 유형의 높은 상관관계와 규모 예측에 적합한 메소드 수 매트릭을 제시한다.

• 한국주거학회논문집
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• 제25권5호
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• pp.43-50
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• 2014

This study assesses thermal environment of detached housing area by classifying buildings types with codes based on spatial characteristics and forms of the detached housing area and applying heat island alleviation measures, especially focused on FBCs (Form-Based Codes). We analyzed shapes and materials of outdoor space with 3D-CAD, which can affect the surface temperature of the case studies, focusing on heat island alleviation measures, and performed space design by applying relevant climate factors to a simulation. As to the 3D surface temperature and HIP distribution, low-temperature distribution was shown in the case studies when we applied heat island alleviation measures. FBCs (Form- Based Codes) is being developed for the purpose of creating new urban environment. This study is significant because it pays attention to the effects of surface temperatures on accumulation of sensible heat and reviews heat island alleviation measures with outdoor space shapes/materials in order to lower surface temperatures, aiming at improved pleasantness of the detached housing area.

• 한국멀티미디어학회논문지
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• 제13권12호
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• pp.1855-1862
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• 2010

In virtual reality, there are increasing qualitative development in service technologies for realtime interaction system development, 3- dimensional contents, 3D TV and augment reality services. These services experience difficulties to generate depth value that is essential to recover 3D space to form solidity on existing contents. Hence, research for the generation of effective depth-map using 2D is necessary. This thesis will describe a shortcoming of an existing depth-map generation for the recovery of 3D space using 2D image and will propose an enhanced depth-map generation algorithm that complements a shortcoming of existing algorithms and utilizes the definition of depth direction based on the vanishing point within image.

• Journal of Advanced Marine Engineering and Technology
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• 제27권2호
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• pp.272-279
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• 2003

This study aimed to understand the effects of transporting ice slurry Particles through Pipes with branches. The experimental apparatus was constructed as ice slurry mixing tank. vortex pump, manometers for differential pressure measuring. IPF(ice packing factor) measuring instruments and branches as test sections. The experiments were carried out under various conditions. with concentration of water solution ranging between 0∼20wt% and velocity of water solution at the entry ranging between 1.5∼2.5m/s. The differential Pressure and IPF between the pipe entry and exit were measured. and flowing form was checked throughout the experiment. The pressure loss in 3d branches appeared compared with 6d branches so that it was very high. In the pressure loss of the inside and outside of branches. 6d branches was showed the difference. but was agreed in 3d branches The pressure loss according to concentration of water solution, low value appeared at 10wt% in 6d branches, at 20wt% in 3d branches. The pressure loss according to velocity, did not show large difference. The change of IPF at outlet, appeared +15∼-25% in 6d branches and 0∼-20% in 3d branches. The difference of IPF at the inside and outside of branches. appeared 10∼15% in 6d branches and maximum 5% in 3d branches.

• 한국정밀공학회지
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• 제24권6호
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• pp.131-137
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• 2007

In metal casting process, it is very difficult to predict the form accuracy of cast part and reduce repeatability error. In this study, the variations of form accuracy were measured in the process of metal cast prototyping, where RP part is manufactured from CAD model in the first, and then, wax part is cast in the vacuum environment using the RP part as master model, and finally metal prototype is cast using ceramic mold and the wax part as pattern. To investigate the variations of form accuracy, the averages and standard deviations of error distribution of the parts measured by 3D scanner were compared. It was observed that the biggest shrinkage is generated during the extraction of wax part in the second step and the biggest deterioration of form accuracy is generated during the metal part casting in the last step.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.146-153
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• 2009

컴퓨터 그래픽 기술의 발달로 과거의 복잡한 알고리듬과 고가의 장비를 통하여 제작이 가능했던 특수영상들이 가정용 컴퓨터의 고사양화와 사용이 편리화 된 그래픽 프로그램으로 인하여 영상 전문가가 아니더라도 제작이 가능해 졌다. 2.5D는 컴퓨터 그래픽 제작자 사이에서 사용되어지는 단어로 3D와 같이 보이는 2D 이미지의 시각적인 형태(form of pseudo-3D)를 일컫는 말이다. 본 연구에서는 과거 게임의 시각적인 효과 증진과 엔진의 효율성을 위하여 사용되어지던 2.5D 제작기술을 Adobe사의 Photoshop과 After Effects를 이용하여 모션 그래픽에 응용하고자 한다. 현대 사회에서 모션 그래픽은 광고와 영상시장에서 큰 비중을 차지하고 있으며, 시청자들의 눈이 시각적으로 고급화되어짐에 따라 과거의 2D 기반의 제작과정에서 벗어나 입체적이고 다이내믹한 3D 공간상으로 제작 기술이 확장되고 있다. 본 연구에서는 Axonometric Projection에 의한 각도로 촬영 되어진 스틸 이미지에서 물체의 삼면의 정보를 추출하고, Adobe Photoshop의 Vanishing Point Filter와 After Effects를 이용하여 소실점의 추적을 통한 이미지상의 물체를 2.5D 물체로 제작하고자 한다. 기존의 3D 프로그램에서의 제작 프로세스와 새로운 2.5D 제작프로세스의 비교, 카메라 앵글의 자유성을 비교함으로 제작의 효율성에 대한 연구를 한다.