• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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• pp.237-247
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• 2001

In this paper we present an overview of existing state of the art visualization techniques fur the interactive analysis of results from numerical simulations and measurements. We describe the basic concepts and key ideas behind these different visualization methods in this paper. The potential of these techniques for an efficient integration into a virtual reality environment will be investigated. Furthermore we present our first demonstrator fur visualizing multiparametric data and give an outlook on our plans for further exploiting and developing these techniques in an upcoming project.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.55-58
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• 2009

Automatic segmentation of brain MRI data usually leaves some segmentation errors behind that are to be subsequently removed interactively, using computer graphics tools. This interactive removal is normally performed by operating on individual 2D slices. It is very tedious and still leaves some segmentation errors which are not visible on the slices. We have proposed to perform a novel 3D interactive correction of brain segmentation errors introduced by the fully automatic segmentation algorithms. We have developed the tool which is based on 3D semi-automatic propagation algorithm. The paper describes the implementation principles of the proposed tool and illustrates its application.

• 한국게임학회 논문지
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• 제15권3호
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• pp.189-200
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• 2015

오늘날 많은 IT 관련 분야에서 컴퓨터 그래픽스 기술이 사용되고 있다. 더욱이 3D 프린터, Head Mount Display, VR & AR 등 컴퓨터 그래픽스와 밀접하게 관련된 분야에 대한 수요가 급증하고 있다. 앞으로 컴퓨터 그래픽스 분야는 더욱 전문화되고 이에 따른 인력의 수요도 증가할 것이다. 그러나 그래픽스 분야가 수학적 배경지식을 많이 요구하기 때문에 접근성이 낮고, 수요에 비해 이를 전공한 사람과 전문가의 숫자가 적다. 만약 그래픽스 프로그래밍을 쉽게 배울 수 있는 환경을 제공하다면, 컴퓨터 그래픽스 분야 인력 양성에 도움이 될 것이다. 따라서 이 논문에서 그래픽스 이론을 분석하여 초심자도 체계적이고 쉽게 배울 수 있는 교육용 소프트웨어 모델을 제시한다. 웹과 블록을 이용한 설계를 통해 접근성과 직관성을 높이고, 이론적인 내용을 중점적으로 학습할 수 있는 환경을 구축하는 방법을 제안한다.

• International Journal of Contents
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• 제2권2호
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• pp.1-5
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• 2006

The modeling and animation of natural phenomena have received much attention from the computer graphics community. Synthetic of natural phenomena are required for such diverse applications as flight simulators, special effects, video games and other virtual realty. In special effects industry there is a high demand to convincingly mimic the appearance and behavior of natural phenomena such as smoke, waterfall, rain, and fire. Particle systems are methods adequate for modeling fuzzy objects of natural phenomena. This paper presents particle system API(Application Program Interfaces) for generating special effects in virtual reality applications. The API are a set of functions that allow C++ programs to simulate the dynamics of particles for special effects in interactive and non-interactive graphics applications, not for scientific simulation.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 가을 학술발표회 논문집
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• pp.371-378
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• 1999

A prototype computer program was developed which visualizes various kinds of geotechnical information using 3D object graphics techniques. The program integrates various kinds of geotechnical data such as surface geology map, boreholes data, geophysical data as well as man made subsurface structures. It also reads NGIS DXF map and generates digital elevation model from iso-elevation line layer of the DXF map. All the data are put into a 3D model as 3D objects. The created 3D model can be viewed and analysed in a interactive 3D way.

• 한국컴퓨터그래픽스학회논문지
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• 제6권4호
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• pp.15-22
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• 2000

영상기반 모델링 및 렌더링의 주된 흐름중의 하나는 plenoptic function을 어떻게 구현할 것인가에 집중되고 있다. 본 논문은 임의의 위치에 배치된 파노라마 군을 이용하여 plenoptic function을 구현하는 새로운 기법을 제안한다. 이 기법은 우선 간단한 컴퓨터 비전 기술을 사용하여 주변 환경에 대한 개괄적인 깊이 정보를 추출한 뒤, 이를 이용하여 파노라마 영상 데이터를 보정/보간하여 새로운 시점에서의 렌더링을 수행한다. 본 기법을 사용한 결과 실시간에 부드러운 네비게이션을 구현할 수 있었다.

• Journal of Mechanical Science and Technology
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• 제15권4호
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• pp.422-432
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• 2001

There are many analysis formulas for determining the resultant shear force in welds. However, there is no general procedure which is applicable to a joint with all six possible loadings exerted simultaneously. A numerical methodology and computer program for such a problem were developed, and they are capable of analyzing a weld of any shape composed of straight or circular line segments. The computer program developed in this study can also display the design procedures and results using computer graphics. The development of such a design procedure and an interactive computer program for weldments analysis will lead to lower cost.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1986년도 한국자동제어학술회의논문집; 한국과학기술대학, 충남; 17-18 Oct. 1986
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• pp.425-430
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• 1986

This paper introduces the program to develop graphics-oriented, interactive, computer-aided design modules for machine elements which are developing in Mechanical Engineering Department of The Ohio State University in U.S.A. The CAD modules are developed to be efficiently performed within the arena of minicomputer- and personal computer-based computer-aided design. In addition, this paepr deals with the state-of-the-art in computer-aided design.

• 한국정보시스템학회지:정보시스템연구
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• 제6권2호
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• pp.165-188
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• 1997

This paper describes about the development of the 3 Dimensional interactive physics experiment system using virtual reality technologies. Until now, most of the computer aided education systems have adopted one-sided learning way which only shows or tells. It excludes students during learning processes. To solve the problems of the one-sided learning way and to improve the educational productivity, the 3 Dimensional interactive physics experiment system is developed. The 3 Dimensional interactive physics experiment system introduced in this paper provides a new learning motivation for students and improves their educational effects through the 3 Dimensional graphics, realtime action, and realistic interactive experiment.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1987년도 한국자동제어학술회의논문집; 한국과학기술대학, 충남; 16-17 Oct. 1987
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• pp.269-272
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• 1987

This paper is concerned on kinematic analysis and simulation of an automatic feeding mechanism subjected by the motion of a curvilinear inverse cam. The main objection is the development of computer-aided design (CAD) program for simulating the motion of the cam-feeding mechanism using computer-graphics. A computer program CACAFS (Computer-Aided Cam and Automatic Feeding System) is independent of computer hardware used. The program is also interactive using a menu-selection technique. As the second part of the paper for the motion simulation of the cam-feeding system, this paper discusses the state-of-art for CAD. The first part of the paper presents the algorithm to simulate the notion of the cam-feeding mechanism.