• 복식
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• 제60권3호
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• pp.26-43
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• 2010

The inflow of digital technology into the art, especially in the Fashion Illustration since 1990, makes the new aesthetics of the beginning of the 21 century which the Software aesthetics can be called. The meeting of technology and the art make us recall a great scientist and artist, Leonardo da Vinci in the Renaissance that the notion of the art and skill was unified, same as the ancient history. This study is purposed to expand the concept of the art for the broad exchange of the digital technology and art and for the extensive expression method of the modern fashion illustration. Having views on science theory of the beginning of the 20 century, Theory of Relativity which had given a lot of influence in the philosophy, the litterature and the art, as well as all the science, it makes a connection with the history of art in the beginning of the 20 century and the story of the digital art in the beginning of the 21 century. Firstly, the Fauvism and 2D is based on the expression of the glowing and bright color by the Principle of constancy of light velocity. Secondly, the Cubism and 3D is associated with the Special theory of relativity in the cyberspace which the space and the time are totally accorded. Thirdly, the Futurism and 4D is compared with the General theory of relativity which contains the material and the gravity. They are gradually evolved into the Interactive art and the Kinetic art by the digital technology in the profound cyberspace.

• Journal of information and communication convergence engineering
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• 제21권1호
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• pp.90-97
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• 2023

Digital holographic microscopy (DHM) is a three-dimensional (3D) imaging technique that uses the phase information of coherent light. In the reconstruction process of DHM, a narrow region around the positive or negative sideband from the Fourier domain is windowed to avoid noise due to the DC spectrum of the hologram spectrum. However, the limited size of the window also degrades the high-frequency information of the 3D object profile. Although a large window can have more detailed information of the 3D object shape, the noise is increased. To solve this trade-off, we propose phase difference averaging (PDA). The proposed method yields high-frequency information of the specimen while reducing the DC noise. In this paper, we explain the reconstruction algorithm for this method and compare it to various conventional filtering methods including Gaussian, Wiener, average, median, and bilateral filtering methods.

• Design & Manufacturing
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• 제17권3호
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• pp.1-7
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• 2023

Blow molding is a manufacturing process in which thermoplastic preforms are preheated and then pneumatically expanded within a mold to produce hollow products of various shapes. The two-step process, a type of blow molding method, requires the output of multiple infrared lamps to be adjusted individually, so the process of finding initial conditions hinders productivity. In this study, digital twin technology was applied to solve this problem. A blow molding simulation technique was established and simulation-based metadata was generated. A response surface ROM (Reduced Order Model) was built using the generated metadata. Then, a dynamic ROM was constructed using the results of 3D heat transfer analysis. Through this, users can quickly check the product wall thickness uniformity according to changes in the control value of the heating lamp for products of various shapes, and at the same time, check the temperature distribution of the preform in real time.

• 패션비즈니스
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• 제20권2호
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• pp.16-31
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• 2016

This study analyzed cases that applied hologram technology in the fashion industry in order to provide basic information for research on fashion marketing using hologram technology. The results of this study are as follows. A hologram was applied to fashion businesses in various ways including fashion shows, outdoor signboards, hologram windows or screens in stores, and launching shows or exhibitions. Most of these cases were foreign fashion brands, which utilized hologram technology actively for formulating a new brand image or for advertising products. Among Korean brands, however, there are not many cases of hologram application. Today, as-being the age of smart devices, the mobile advertisement market is growing rapidly among smart phone users. DKNY and Puma are providing information on styling through smart phone applications, and the Adidas stores in Germany also allow the customers to buy goods by entering a simple code through the smart phone. Recently, new devices are being introduced one by one, which display 2D digital contents in 3D holograms by combining mobile and hologram technologies. The marketing of fashion products is not just for supplying products but is required to satisfy the consumers' five senses. Therefore, the development of experiential contents based on the combination of mobile and hologram technologies will open new potential for profitable business models.

• 대한치과기공학회지
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• 제41권1호
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• pp.1-7
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• 2019

Purpose: The objectives of this study was to evaluate clinical adaptation of dental prostheses printed by 3 dimensional(3D) printing technology. Methods: Ten study models were prepared. Ten specimens of experimental group were printed by 3D printing(3DP group). As a control group, 10 specimens were fabricated by casting method on the same models. Marginal gaps of all specimens were measured to evaluate clinical adaptation. Marginal adaptations were measured using silicone replica technique and measured at 8 sites per specimen. Wilcoxon's signed-ranks test was used for statistical analysis(${\alpha}=0.05$). Results: Means of marginal adaptations were $95.1{\mu}m$ for 3DP group and $75.9{\mu}m$ for CAST group(p < 0.000). Conclusion : However, the mean of the 3DP group was within the clinical tolerance suggested by the previous researchers. Based on this, dental prosthesis fabricated by 3D printing technology is considered to be clinically acceptable.

• 한국콘텐츠학회논문지
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• 제12권6호
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• pp.142-150
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• 2012

테크놀로지의 발달은 기존 매체에 다양한 방식으로 영향을 미치고 있다. 특히 애니메이션에서는 디지털 이미지의 영향으로 현실을 재현한 사실적인 3D애니메이션이 등장하였다. 로버트 저메키스는 실제 사람 같은 캐릭터가 등장하는 <폴라 익스프레스>를 발표하면서 많은 주목을 받았다. 하지만 이러한 새로운 스타일의 애니메이션은 시간이 지나면서 관객의 호응이 줄어들었다. 결국, 로버트 저메키스는 높은 제작비가 들었지만 기록적인 흥행실패로 화제가 된 <화성은 엄마를 필요해>를 마지막으로 사실적인 애니메이션 제작을 중단하였다. 사실성을 강조한 이러한 작품은 기본적으로 영화는 아니다. 하지만 영화의 사실성을 강조하고 있기 때문에 관객은 외형적으로 사람과 흡사한 디지털 캐릭터에 대해서 현실감을 느낀다. 그리고 동시에 디지털로 제작된 이미지라는 인식이 서로 충돌하게 된다. 이러한 부분에서 관객은 혼란스러움과 망설임을 경험하게 되는 것이다. 테크놀로지의 발달로 애니메이션은 시각적으로 사실적인 완성을 보여주었지만 더불어 관객의 수용성이라는 측면에서 관객과 상호 교감 되는 방식으로 발전하여야 할 것이다.

• 대한공간정보학회지
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• 제17권2호
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• pp.91-99
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• 2009

지형공간정보 분야에서 대상물의 3차원 형상에 대한 자료는 기본 자료로 취급되고 있다. 특히, 공간에 관련하여 계획, 유지, 관리 등을 업무를 수행하기 위해서는 다양한 물리적 형상 정보가 필요하다. 종래의 사진측량은 고가의 측량용 카메라와 숙달된 전문가가 운용하는 해석도화기를 이용하여 수행되어 왔으나 최근에는 수치사진측량의 발달로 인하여 저가의 비측량용 디지털 카메라를 이용해 컴퓨터 환경에서 수행하는 것이 가능해졌다. 본 연구에서는 비측량용 디지털 카메라를 이용한 근거리 사진측량에 의해 신속하게 3차원 형상정보를 생성하기 위한 기술을 연구하고, 이를 지형공간정보 분야에 적용할 수 있도록 함으로써, 지형공간정보 분야에서 필요로 하는 3차원 형상에 대한 정보의 취득을 원활하게 하는 것을 목적하였다. 비측량용 카메라 중에서 보급형 컴팩트 디지털 카메라를 사용하고 대상물 내의 단 하나의 길이 성분만을 관측하여 대상물의 3차원 형상을 해석한 결과 1화소 이하의 정확도로 대상물의 크기를 해석할 수 있었다.

• 한국멀티미디어학회논문지
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• 제15권3호
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• pp.408-416
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• 2012

최근에 문화콘텐츠에 대한 관심이 높아지면서 문화적 가치가 높은 고건축에 대한 3차원 복원이 활발하게 이루어지고 있으며 최근에는 새로운 IT기술과 장비를 활용하여 디지털 복원작업이 이루어지고 있다. 3D 스캐너를 이용한 3차원 복원방식은 외관에 관한 매우 정교한 데이터를 확보할 수 있지만 대용량의 데이터를 처리해야 하고 목가구에 대한 세부 정보의 부재로 인해 디지털 콘텐츠로 활용하는데 제약이 따른다. 우리나라의 전통 목조건축은 특성상 연결부재의 사용과 이들간의 결구방식이나 축조방법은 그 시대의 건축문화를 알아보는 중요한 자료이다. 따라서 본 연구에서는 목가구 방식에 의한 설계 도구를 개발하여 3차원 디지털복원은 물론, 기존의 방법에서 간과되었던 결구방식이나 축조방법에 대한 유용한 정보를 실시간으로 한 눈에 보여줄 수 있는 콘텐츠를 제작할 수 있는 새로운 방식의 3D 복원방법을 제안한다.

• 한국기계가공학회지
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• 제16권6호
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• pp.101-108
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• 2017

Recently, the patent rights for 3D printing technology have expired, while 3D printers with RP (Rapid Prototyping or Additive Manufacturing) and 3D printing technologies are receiving attention. In particular, the development of 3D printers is rapid in Korea, thanks to the increasing sales and popularity of FDM (Fused Deposition Modeling or Fused Filament Fabrication) 3D printers. However, the quality and productivity of the FDM 3D Printer are not good, so customers prefer the DLP (Digital Light Processing) method to avoid these shortcomings. The DLP method has high quality and productivity. However, because of the stereolithography equipment, it has few studies compared to optimal values for elements then FDM 3D printing study. In this study, to find the optimal conditions for 3D printing with the DLP method, the aim is to obtain the optimal values (strength, final time, quality) by changing the light exposure time, layer thickness, and z-axis speed.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.248-249
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• 2019

In the nuclear industry, in order to keep pace with the 4th industrial revolution era, they are trying to improve the construction and maintenance ability by utilizing the technologies such as digital twin and VR/AR from the construction stage. However, the nuclear 3D CAD model, which is used as the base in the latest technology, is heavy due to a large number of facilities per unit space compared to other industrial companies, and it is difficult to directly incorporate the latest technology into the results of CAD programs for design purposes. In this study, in order to improve usability, we tried to lighten the 3D model. First, we analyze the existing nuclear power plant 3D model and draw out the problems and features. Secondly, we derived the factors to consider when we make the 3D CAD models lightweight.