• Proceedings of the IEEK Conference
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• 2002.07a
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• pp.106-109
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• 2002

In the integrated systems, that is integrated digital TV(DTV) internet and home automation, like home server, is needed integration of digital TV video signal and computer graphic signal. The graphic signal is operating at the high speed and has time-divide-stream. So the re-request of data is not easy at the time of error detection. therefore EDAC algorithm is efficient. This paper presents the efficiency error detection auto correction(EDAC) for conversion of graphics signal to DTV video signal. A presented EDAC algorithms use the modified Hamming code for enhancing video quality and reliability. A EDAC algorithm of this paper can detect single error, double error, triple error and more error for preventing from incorrect correction. And it is not necessary an additional memory. In this paper The comparison between digital TV video signal and graphic signal, a EBAC algorithm and a design of conversion graphic signal to DTV signal with EDAC function is described.

• Journal of Korea Game Society
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• v.4 no.3
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• pp.65-70
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• 2004

The conventional 3D graphic accelerator is mainly focused on high performance in the application area of computer graphic and 3D video game How ever the existing 3D architecture is not suitable for portable devices because of its huge power. So, we analyze the embedded 3D graphics renderer. After the analyzing, to reduce the power, triangle set-up stage and edge walking stage are executed sequentially while scan-line processing stage and span processing stage which control performance of 3D graphic accelerator are executed parallel.

• Journal of the Korean Graphic Arts Communication Society
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• v.30 no.2
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• pp.23-33
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• 2012

With the development of many display technologies currently applied to them in the field of printed electronics, there have been many researches that high resolution printing for thin and uniform pattern. In this paper, printing ink flow properties in the reverse offset mechanism were simulated. The aim of this research is to expect the ink flow behavior between cliches to make fine pattern by a printing technique which is a reverse offset. The simulation results show that almost the same as the experiments and the flow behavior according to the ink film thickness and printing pressure changes could be expected.

• The Transactions of the Korea Information Processing Society
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• v.7 no.11S
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• pp.3739-3751
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• 2000

The remarkable progress of computer graphic and virtual reality fields has increased the need of 3D graphic data for implementing more realistic environments. However, despite this trend, lots of time and labor required to process 3D graphic information extracted still limits its application only to the specific areas. As one proper solution to this problem, 3D scanner acquiring graphic data in short time and new algorithm for a data processinig are often mentioned. In this paper, A method generatinig a virtual object quickly by not zippering range data obtained from 3D moire-scanner is introduced and its effectiveness is examined.

• Archives of design research
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• v.14 no.3
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• pp.7-14
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• 2001

Modern graphic design is creating a new area of graphic design due to the development of computer technology as it changes the existing world of graphic design with a variety of advanced style of image. It is true, however, that the basic principles and images in the modern design are influenced by the visual principles and methods elaborated and changed by the numerous creative works that is well representing the visual features of graphic design trends from the early 20th century to the mid century. The style of graphic design at the time which is generally referred to as 'modern graphic design' went through Pictorial modernism, Constructivism, De Stijl, Bauhaus after the beginning of 20C design, Art Noueau. It spread over the world in the ear of Swiss graphic design and New York graphic design that create the basic principles and styles in modern graphic design. This study examines visual features and flow of graphic design from the early years in the 20th century to the middle of the century, the foundation ear of principles in the modern graphic design. It will give a systematic and fundamental understanding of graphic design and visual features of it while it will be in a research process to create a new graphic style.

• Journal of Advanced Navigation Technology
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• v.21 no.5
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• pp.485-490
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• 2017

In this paper, we propose a technique for high speed removal of sea-fog using a graphic processor. This technique uses a host processor(CPU) and several graphics processors(GPU) capable of parallel processing to remove sea-fog from the input image. In the process of removing sea-fog, the dark channel extraction, the maximum brightness channel extraction, and the calculation of the transmission are performed by the host processor, and the process of refining the transmission by applying the bidirectional filter is performed in parallel through the graphic processor. To verify the proposed parallel processing method, three NVIDIA GTX 1070 GPUs were used to construct the verification environment. As a result, it takes about 140ms when implemented with one graphics processor, and 26ms when implemented using OpenMP and multiple GPGPUs. The proposed a parallel processing algorithm based on the graphics processor unit can be used for safe navigation, port control and monitoring system.

• Archives of design research
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• v.11 no.2
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• pp.229-239
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• 1998

This study alms at developing the basic substance of education in Creating in 2- Dimentional Space, Which will make it possible to express and pursue creating which is appropriate for the characteristics of computer graphic as well as the technical side of the creating shape using computer in the established basic educational programs of the field, Thus in this study, I will put the concepts of creating shape relevant to various expression media in order. Based on this, I will clarify the potential of utilizing computer graphics and the extent to which they can applied, The purpose of this study lies 10 understanding computer as a means of creating and revealing the possibility for broadening the boundary of the establishd creating, For this, I am gOlOg to propose a plan for the education of Creating 10 2-Dimentional Space, limiting myself to the area relevant to computer graphics.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.894-899
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• 1991

GRAFCET is the program language for a sequential control and utilized in the description of sequence of a process. This study is to implement GRAFCET editor and compiler for personnel computer. The GRAFCET editor module is developed to use as menu-driven method based on the graphic screen and the graphic symbol. So, users can use it interactively. The GRAFCET compiler module analyzes the already drawed GRAFCET diagram, then translates it to Z80 assembly code. After generating Z80 machine code from assembly code, we can send the outputed machine code file to Z80 one-board computer through RS232C. We have developed the GRAFCET programming tool to utilize under IBM PC/AT with the VGA monitor, and it may be contribute to low cost automation system.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06d
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• pp.82-85
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• 2011

개인정보를 사용자 몰래 뒤에서 훔쳐보거나 불법 카메라를 이용하여 녹화하는 등의 방식으로 얻어내는 훔쳐보기 공격(Shoulder-surfing attack)은 최근 모바일 기기의 보급 속도가 빨라지고 휴대성이 증대되면서 점점 더 큰 보안 문제로 떠오르고 있다. 본 논문에서는 그래픽 패스워드(Graphic Password) 방식 중에 훔쳐보기 공격을 효율적으로 막을 수 있는 새로운 방안을 소개하려고 한다. 이 방식은 그래픽 패스워드에서 쓰이는 패스 이미지(Pass image)의 선택을 한붓그리기를 이용하여 입력하는 방식으로써 기존의 방식들에 비해서 훔쳐보기 공격에 특화되어 좀 더 안전한 수준의 보안을 제공한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.95-96
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• 2012

본 논문에서는 웹 페이지에서 사용되는 광고 콘텐츠에 대해서 나타낸다. 웹 페이지에서 사용되는 광고 콘텐츠는 모션 그래픽으로 제작하여 인터렉티브하게 이용 된다. 또한 웹 페이지에서 사용되는 광고는 광고의 특성을 가지고 있다. 따라서 광고의 특성에 따라 콘텐츠의 특성도 달라진다. 웹 페이지에서 사용되는 광고 콘텐츠은 특성에 따라 이미지 광고와 동영상 광고로 분류한다. 이들 콘텐츠의 특성으로 이미지의 사이즈와 동영상의 사이즈, 제작 파일 크기, 재생 시간, 웹 페이지의 위치에 따라서 다양한 광고 효과를 연출한다. 따라서 광고 효과를 나타내기 위해서는 제작 광고 콘텐츠의 특성과 인터렉티브 콘텐츠의 특성이 고려되어야 한다.