• 대한교통학회지
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• 제4권2호
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• pp.59-72
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• 1986

The purposes of this paper are to review the concept and system structure of computer graphics and to discuss the applicability of computer graphics technique as an analysis tool in transportation studies. To do this, several applications of computer graphics used for analyzing and solving transportation system problems were described and illustrated. The results indicate that computer graphics are found to be powerful aids to the analysis and design of transportation systems that typically involve large data bases and several interacting components. The results also indicate that computer graphics can be a powerful tool for aiding planner, decision maker and citizen in making it easier to explain and interpret information through mapping and graphic display.

• 원예과학기술지
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• 제16권3호
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• pp.364-365
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• 1998

본 연구는 기존 원예종에 비해 관상가치가 높은 반입종식물이 나타내는 반입현상의 다양한 변화를 측정할 수 있는 보다 정확한 검정방법을 개발코자 실시되었다. Scanning을 통한 컴퓨터 분석을 이용해 Tradescantia 2품종에 대한 전체엽면적 및 반입면적을 측정한 결과 광도가 증가할수록 전체엽면적은 감소하였으며 반입면적은 증가하는 결과를 나타내었다. 음지에서는 공시된 2품종 모두의 엽면적은 증가하였으며 반입면적은 급속히 감소하였다. 또한 위에 언급한 방법과 동일한 수법으로 광도에 따른 반입색차를 측정한 결과 양지에서 가장 밝은 엽색정도를 보였으며 광도가 감소할수록 엽색정도가 짙어졌다. 위의 결과에 대해 엽면적계로 전체 엽면적 및 반입면적을 측정한 값($cm^2$)과 본 연구에서 scanning을 하여 얻은 그래픽파일을 이용한 컴퓨터 분석시의 수치(pixel)간의 상관정도를 구한 결과 매우 높은 상관관계가 있었다. 따라서 컴퓨터그래픽분석을 이용한 엽면적 및 반입면적의 측정법은 매우 정확하며 간편하게 쓰일 수 있을 것으로 추측되었다.

• 대한의용생체공학회:의공학회지
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• 제24권6호
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• pp.495-500
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• 2003

본 연구의 목적은 컴퓨터 그래픽 모델을 사용하여 보행 시 족부 관절의 기구학적 특성을 알아보는 것이었다. 모델에서 모든 관전은 단일중심(monocentric), 1 자유도 힌지 관절로 구성되었다. 보행 시 족부의 모션데이터는 4대의 카메라를 사용한 모션측정기로 얻었으며, 이 모션데이터를 피험자의 밭의 크기에 맞게 스케일링된 모델에 입력하여 시뮬레이션을 수행하였다. 첫 번째 발목발허리관절(tarsometatarsal joint)의 운동 범위(range of motion)는 $-8^{\circ}\;\~\;-13^{\circ}$ 이었으며, 발허리발가락관절(metatarsophanlangeal joint)에서의 운동범위는 $-13^{\circ}\;\~\;-48^{\circ}$ 이었다. 발목발허리관절과 발허리발가락관절에서의 기구학적인 데이터는 이전 연구와 비교했을 때 비슷한 경향을 나타내었다. 따라서 본 연구에서 제시하는 컴퓨터 그래픽을 기반으로 한 족부 모델링은 족부 관절의 생체역학적 해석을 위한 유용한 방법이라 할 수 있을 것이다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2005년도 한국컴퓨터종합학술대회 논문집 Vol.32 No.1 (A)
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• pp.715-717
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• 2005

본 논문은 컴퓨터 게임 제작을 위한 그래픽 처리 실무기술에 대해서 실제 방법을 고찰해 보고저 한다. 이러한 연구는 국제적인 경쟁력을 가지는 국산 게임개발이라는 과제의 실무기술로 사용될 수 있게 하기 위함이다.

• 산업공학
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• 제5권2호
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• pp.75-85
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• 1992

A common problem for manufacturing industries, especially consumer goods industries, is how to establish standardized procedures for loading finished goods onto pallets or containers for subsequent storage and distribution. Utilizing previous research results on the palletizing problem, this paper develops micro-computer based programs which generate an optimum loading pattern leading to the minimum amount of unused pallet or container space. Development of pallet layout chart is also included in the computer programs. The results are displayed by computer-graphic. For the users who are unfamiliar with pallet loading problem and computer system, pull-down menu and user-computer interactive data input procedures are adopted.

• 한국인쇄학회지
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• 제16권2호
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• pp.1-10
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• 1998

Even if some kinds of software for halftoning such as raster image process program are on the market, most of them couldn`t apply to the new laser gravure cylinder making machine because they are closed the source program. In order to develop new laser gravure engraving machine, we were investigated new suitable halftoning software based on the mapping and equal density expansion algorithm that we are mapped. As the results of actual practice with Microsoft Visiul C++2.0 in 133Khz 64M ram IBM personal computer, we found that the new software for halftone generation for laser gravure engraving machine are available in new machine, and easily load and processing the graphic image for gravure hardcopy.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.716-719
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• 1997

An integrated program of driving simulator has been developed for excavators using the Motif, OpenGL, and C compiler. The developed program not only offers a GUI but also covers graphic algorithms, therefore, the user can easily run the driving simulator whose components include a simplified visual graphics system. Several graphics technique are combined and applied to the simulator program in order to increase the speed of graphical representation, which access computer memories, mix 2D models with 3D ones, and use the basic position detection method. A text format environment file has been utilized for organizing more flexible driving circumstances.

• 전자공학회논문지B
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• 제31B권7호
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• pp.76-90
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• 1994

In this paper, an efficient algorithm is proposed which recognizes the mixed document consisting of the printed Korean/alphanumeric texts and graphic images. In the preprocessing step an input document is aligned if necessary by rotating it. We obtain the rotation angle using the Hough transform and align the input document horizontally. Then we separate graphic image parts from text parts by considering chain codes of connected components. We further separate each character using vertical and horizontal projections. In the recognition step Korean and alphanumeric characters are classified and each of them is recognized hierarchically using several features. In summary an efficient recognition algorithm for mixed documents is proposed and its performance is demonstrated via computer simulations.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 추계학술대회 논문집 전력기술부문
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• pp.72-74
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• 2007

This paper presents a Windows graphic developed by the authors for the education and training of power system. Object-oriented programming is a major trend in computer software because it increases flexibility of large-scale software systems. An efficient platform for power system simulation applications has been proposed. This paper presents an intuitive Windows-based program for the power system analysis. The advantages of the object-oriented approach are demonstrated with an implementation of the graphical program. It provides a graphical interface for designing the one-line diagram of the bus and analyzing the output of the simulations. A graphical editor to visually edit the power system, diagram, results processing and exporting and graphic presentations.

• 한국인쇄학회지
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• 제21권1호
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• pp.35-44
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• 2003

Because of computer developing, the digital image making the use of many a field of application with - web-above, electronic publishing. printing, dynamic image management and photo CD production etc., however many problems of save and management. The management image use of compression moth which don't have a affect on image, reduce file size. A study used sequential DCT0based mode and progressive DCT-based mode of JPEG(Joing Photographic Experts Group) compression method and Wavelet compression method. Therefore, the analog image and digital image was changed and applied by several stages according to compression rate. It made inquiries of the optimum compression rate that be compared quality transformation between original image and compressed image. As compression image was printing simply, the quality was studied by subjective valuation method, that was studied propriety and usefulness.