• International journal of advanced smart convergence
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• 제12권4호
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• pp.293-299
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• 2023

In recent years, with the rapid development of real-time rendering technology, the quality of the images produced by real-time rendering has been improving, and its application scope has been expanded from games to animation and advertising and other fields. This paper analyses the development status of real-time rendering technology in 3D animation by investigating the 3D animation market in China, which concludes that the number of 3D animations in China has been increasing over the past 20 years, and the number of 3D animations using real-time rendering has been increasing year by year and exceeds that of 3D animations using offline rendering. In this study, a real-time rendering and offline rendering 3D animation are selected respectively to observe the screen effect of characters, special effects and environment props, and analyse the advantages and disadvantages of the two rendering technologies, and finally conclude that there is not much difference between real-time rendering 3D animation and offline rendering 3D animation in terms of quality and the overall sense of view, and due to the real-time rendering of the characteristics of the WYSIWYG, the animation designers can better focus on the creation of art performance. Real-time rendering technology has a good development prospect and potential in 3D animation, which paves the way for designers to create 3D content more efficiently.

• 대한디지털의료영상학회논문지
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• 제5권1호
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• pp.26-31
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• 2002

본 연구의 목적은 복강경 수술환경에서 2D와 3D 내시경 비디오 영상이 수술에 미치는 영향을 평가하기 위한 연구이며, 이를 위해 3D 내시경 시스템을 구성하고 성능 평가를 수행하였다. 결과적으로 본 연구에서 제안한 3D 방식이 기존의 전자셔터 방식에 의한 3D 영상에 비해 화질과 시야각이 우수하며, 2종류의 모의 수술 실험 비교를 한 결과, 제안한 방식의 디지털 영상을 이용하는 경우가 성능이 가장 우수함을 정량적으로 확인하였다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제23권3호
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• pp.165-179
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• 2020

In this article, the author's intent is to begin a conversation centered on the question: How was the integration of digital technology into elementary mathematics classrooms framed? In the first part of the discussion, the author provides a historical perspective of the development of theoretical perspectives of the integration of digital technology in learning mathematics. Then, the author describes three theoretical perspectives of the role of digital technology in mathematics education: microworlds, instrumental genesis, and semiotic mediation. Last, based on three different theoretical perspectives, the author concludes the article by asking the reader to think differently.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2005년도 추계 종합학술대회 논문집
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• pp.335-339
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• 2005

사진측량학적 처리에 의하여 SPOT 5호 HRG supermode 영상으로부터 수치고도모형(DEM)을 생성하였다. 생성된 DEM의 정착도를 분석하기 위하여 1/5000 축척의 수치지형도로부터 기준 DEM을 작성하고 설정한 여러 시험구간상에서 비교하였다. 또한 수치표면모형(DSM)과 3D 건물모델링을 행하였다.

• 지구물리
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• 제9권1호
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• pp.7-19
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• 2006

Laser scanning is a new technology for obtaining Digital Surface Models(DSM) of the earth surface.It is a fast method for sampling the earth surface with high density and high point accuracy. This paper is for buildings extraction from LiDAR points data. The core part of building construction is based on a parameters filter for distinguishing between terrain and non-terrain laser points. The 3D geometrical properties of the building facades are obtained based on plane fitting using least-squares adjustment. The reconstruction part of the procedure is based on the adjacency among the roof facades. Primitive extraction and facade intersections are used for building reconstruction. For overcome the difficulty just reconstruct of laser points data used with digital camera images. Also, 3D buildings of city area reconstructed using digital map. Finally, In this paper show 3D building Modeling using digital map and LiDAR data.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 추계학술대회
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• pp.609-612
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• 2021

다양한 산업영역에 대하여 정부기관, 기업들은 디지털 트랜스포메이션 전략 수립 및 추진하고 있으며 성공적인 기술 혁신을 통한 4차 산업혁명시대를 선도하고 있다. 이런 변화의 시기에 디지털 트랜스포메이션의 성공사례로 글로벌 기업 나이키, 스타벅스의 이야기를 많이 접할 수 있다. 이 두 기업은 디지털 트랜스포메이션을 통하여 성공적인 결과를 보여 주고 있다. 국내 기업들 또한 모바일, 클라우드, IoT, 인공지능, AR·VR 기술을 기반으로 디지털 혁신을 진행하고 있으며 고효율 높은 생산성을 위한 RPA (Robotic Process Automation)프로세스를 구축 하고 있다. 본 논문에서는 건설 산업의 설계, 시공, 유지관리의 시공 전주기 데이터를 활용하여 3차원 디지털 트윈 공간 구축 자동화 프로세스 기법을 소개하고 앞으로 건설 산업영역의 디지털 트랜스포메이션 전략에 대하여 알아본다.

• 패션비즈니스
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• 제26권1호
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• pp.53-67
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• 2022

The purpose of this study was to compare the appearance similarity between a 3D virtual wedding dress, and a model wearing real dress, and production efficiency, and the possibility of achieving similar results with 3D digital technology. Five wedding dresses for small weddings under the theme of 'Dream Series', were designed and produced in virtual and real dresses to quantitatively compare and analyze the appearance similarity and production efficiency. Experts compared the appearance similarity on the silhouettes, colors, materials, and details, and production efficiency was compared with time and cost. Based on our results, 3D virtual images of four out of the five dresses were similar to the real images. Our efficiency evaluation results showed that the manufacturing time was 45.4% shorter, and the manufacturing cost was 46.1% less than the existing method. This indicated that the wedding dress manufacturing process using 3D virtual software was time and cost saving competitive. Our results also confirmed that 3D virtual software technology has the potential to increase the efficiency of designing and production, and therefore an increase in competitiveness and sales of wedding dresses. Furthermore, 3D technology allows consumers to select and order wedding dresses online through 3D virtual software. This is a great advantage, and it highlights the significance of this research study.

• 복식문화연구
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• 제30권5호
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• pp.732-751
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• 2022

In this study, we aimed to apply 3D digital printing to basic clothing production and to propose futuristic fashion design and production methods that correspond to contemporary trends. Literature on future trends, dynamism, mechanical aesthetics, and experimentalism were used to define the characteristics of "futurism." Based on theoretical considerations about futurism, we created fashion designs using 3D digital printing methods. These designs were produced using the aesthetic characteristics of futurism; the 3D digital clothing program; and application of digital printing technologies to futuristic silhouettes, colors, and materials. The results were as follows: First, with the application of futurism as a fashion motif, we pursued collaboration between artistic work and fashion, and we then explored the possibility of creative expression. Second, harmony between achromatic and chromatic colors revealed even better dynamism and activeness, and the potential to express dynamism was observed. Third, with the development of fashion design processes based on 3D digital printing methodologies, it was found to be possible to eliminate the limitations of time and space, solve problems related to limited budget or communication, and positively influence the fashion industry by enhancing convenience and diversity. Fourth, with the development of fashion design that utilizes digital printing, it was found that problems related to time, space, or limited budget were able to be solved, as compared to the use of traditional printing and image reproduction.

• 한국전자통신학회논문지
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• 제18권6호
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• pp.1229-1238
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• 2023

디지털 트윈은 현실 세계를 복제한 가상 공간을 만들고 현실 공간과 가상 공간을 통합하여 효율적으로 현실 공간을 관리하는 기술이다. 건물에 설치되어 있지만 시각적으로 보이지 않는 수도관 설비를 가상 공간에 구현하고 이를 건물의 실내 공간에 증강함으로써 현실 세계의 수도관을 효과적으로 관리하는 것이 수도 설비에 대한 디지털 트윈 개념이다. 제안하는 방법에서는 Unity 3D 게임 엔진을 이용하여 건물의 실내에 디지털 트윈 기술을 적용하는 방법을 구현하며, 디지털 트윈 구현에 필요한 증강현실 기술은 ARCore 기반의 AR Foundation 툴 킷을 사용한다. 디지털 트윈 응용은 현실 세계와 가상 세계를 정합하는 것이 필수적이다. 제안하는 방법에서는 2D 이미지 마커를 이용하여 현실 세계와 가상 세계를 정합한다. 또한 증강된 오브젝트를 시각적으로 현실감 있게 표현하기 위하여 Unity 쉐이더 프로그램을 적용한다. 구현 결과는 제안하는 방법이 간단하지만 정확하게 수도관을 현실 공간에 배치하고, 시각적으로도 효과적으로 벽면 위에 수도관을 표현하는 것을 보여준다.

• International Journal of CAD/CAM
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• 제6권1호
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• pp.3-8
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• 2006

The application of three-dimensional (3-D) CAD has been popularized for design and production and digital manufacturing has been spreading in many industrial fields. By simulation of the production process using 3-D digital models, which are the core of CIM (Computer Integrated Manufacturing) system, the efficiency and safety of production are improved at each stage of work, and optimization of manufacturing can be achieved. This paper firstly describes the concept of "simulation based production" in shipbuilding and also digital manufacturing; the 3-D CAD system is indispensable for effective simulation because ship structure is three dimensionally complex. By simulation, "computer optimized manufacturing" can be possible. The most effective fields of simulation in shipbuilding are in jobs where many parties have to cooperate, while existing two-dimensional drawings are hardly observed the whole structures due to interference between structures or equipment of complex shape. In this paper some examples of the successful application in IHIMU (IHI Marine United Inc.) are shown: assembly of a pipe unit, erection of a complex hull block, carriage of equipment, installation of a propeller, and access in an engine room.