• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.85-88
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• 2002

Until recently, there have been fundamental changes in many fields of industries. Especially, the mass-production is being changed into mass-customization. In order to construct a 3D e-catalog system far the utilization of mass-customization, there are several matters to consider. Setting realistic 3D image should be effective fur providing the customers with the product information with reality and raising their interest. This study explains the whole process to convert CAD data formed from the production activities into VRML data used in virtual reality environment. Examples are given and discussed to validate the proposed activity.

• Journal of KIISE:Computing Practices and Letters
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• v.15 no.10
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• pp.796-800
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• 2009

Currently, there are many software tools that can generate 3D human figure models and animations based on the advancement of computer graphics technology. However, we still have problems in interoperability of human data models in different applications because common data models do not exist. To address this issue, the Web3D Consortium and the ISO/IEC JTC1 SC24 WG6 have developed the H-Anim standard. However, H-Anim does not include human motion data formats although it defines the structure of a human figure. This research is intended to obtain interoperable human animation by defining the data for human motions in H- Anim figures. In this paper, we describe a syntactic method to define motion data for the H-Anim figure and its implementation. In addition, we describe a method of specifying motion parameters necessary for generating animations by using an arbitrary character model data set created by a general graphics tool.

• Cartoon and Animation Studies
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• s.21
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• pp.33-49
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• 2010

Since the Web 2.0 generation, the average user is more than just enjoying the various media contents; they start to create contents, and those contents have had a huge value and great influence in recent days. The reason for the increase of users who tend to create contents is due to popularization of web based applications. Previous applications were only for the skilled person; however, new web based applications involve the average person and give him a new level of user enjoyment by allowing him to create easily with simple operations. In this paper, through analysing previous animation-creating applications which could not spread widely compared to other contents, we suggest the outline for developing a web based animation-creating application which can help the user to easily create animation contents. We have looked around at how various other contents-making applications have been changed to help the user to be able to participate in creating contents, and we suggest how animation-creating applications can be changed and developed from this analysis. We expect the conclusion of this paper to stimulate to development acting 3D animation-creating applications corresponding to the web 2.0 features - open, share, cooperate, participate. In result, users can enjoy creating the animation more actively; at the same time, we hope to help the development of the new applications which correlate to memedia generation.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.120-122
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• 2011

과학 기술과 의학 기술의 발달로 전 세계적인 고령화 인구 비율도 해마다 증가하고 있다. 본 연구에서는 이러한 고령화 인구 증가 현상에 대한 대책 방안의 하나로 U-HealthCare 시스템에 구글맵(Google Map) 3D 기반의 실시간 위치 추적기법을 적용 시켜 노약자들이 이동하는 중간에 실시간 위치 추적을 실시하여 추후 발생 할 수 있는 위험 사태에 대비하고자 한다. 제안 방식은 구글 맵 3D 서비스 방식이기에 2D 서비스나 문자 서비스 방식보다 시각적으로 건물의 생김새나 주변의 건물에 대한 정확한 파악이 가능하여 노약자들의 위치 정보에 대한 신속한 대체가 가능하다.

• Informatization Policy
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• v.18 no.4
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• pp.42-58
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• 2011

This paper starts from one question: what are the key factors of the web accessibility policy, which is significant for realizing equity in the web and enhancing human dignity in the information society. To find significant factors for complying with web accessibility, this paper analyzes panel data of 16 Korean local governments (for five years: 2004-2009) according to the research design which is based on the demand and supply balance model and consists of four variables : 'legal and institutional environment (including legal infrastructure)', 'financial foundation (fiscal self-reliance ratio)', 'policy inputs (amount of imformatization budget, employee of information experts)'and 'policy demand (internet usage rate, the number of disabled people and elderly people)'. From the results of this study, this paper can explain the mechanism and impact factors on the web accessibility policy of Korean local governments. Some factors are critical to improve web accessibility: (1) the importance of policy demand, (2) the importance of policy inputs, (3) the importance of legal and institutional environment. Finally, this paper concludes with some suggestions to enhance the web accessibility capacity for Korean local governments: (1) improve awareness on web accessibility, (2) develop a standard and invest R&D on web accessibility, (3) foster experts in web accessibility.

• Journal of Korean Society of Steel Construction
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• v.29 no.4
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• pp.281-289
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• 2017

The current AASHTO LRFD and Eurocode 3 specifications have been found to underestimate the flexural strength of longitudinally reinforced plate girders. This is because the web-flange interaction is not considered appropriately when a web is reinforced. The buckling strength of compression flange increases due to the improved rotational restraint to the compression flange. Also, the compression flange and the longitudinal stiffener could constrain the web rotation, so that a certain area of the web reaches yield strength. In this study, a model for evaluating the flexural strength is proposed for plate girders reinforced with one line of longitudinal stiffeners, considering the increase of the buckling strength of the compression flange and the actual stress distribution of the web. The flexural strengths of the conventional steel(SM490) and the high-strength steel(HSB800) plate girders were evaluated from the nonlinear analysis and the applicability of the proposed model was analyzed.

• The KIPS Transactions:PartD
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• v.10D no.3
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• pp.399-406
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• 2003

The widespreading of XML as a standard for semi-structured documents on the Web opens up challenging opportunities for Web query language. And UML is a graphical language to represent the result of object-oriented analysis and design. In this paper, we introduce an UML-based graphical query language for XML documents. The use of a visual formalism for representing the syntax and semantics of queries enables an intuitive expression of queries, even when they are rather complex. And, it is matched a series of processes to store and retrieve XML documents to OODBMS with the use of an uniform visualization for representing both the content of XML documents (and of their DTD) and the syntax and semantics of queries.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.835-836
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• 2009

본 연구는 스케치기반의 인터페이슬 통해 큐빅스플라인 곡선을 자동으로 생성하는 방법을 제시한다. 또한 탐색항해에서 많이 발생하는 이동중 관심영역으로의 뷰포인트를 자동으로 변환하기 위한 방법을 제시한다. 스케치기반 인터페이스는 일반인에게 친숙한 종이환경과 유사한 인터페이스를 통해 가상환경의 탐색항해를 위한 투어패스를 설정하고 관심영역을 중심으로 뷰포인트가 자동적으로 변환하는 기법을 제시함으로써 가상환경에 전문적인 지식이 없거나 전문개발자에게도 시간과 노력을 절약할 수 있는 방법을 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.7-10
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• 2001

웹의 특징인 조작의 간편함, 뛰어난 접근성 등으로 인해 웹을 통한 지리정보의 검색, 접근을 위한 웹 맵 서비스의 요구가 증대되고 있다. 지리정보 분야의 대표적인 컨소시움인 OGC 를 통해서 웹 맵 서비스를 위한 표준 인터페이스가 정의됨에 따라 향후 웹을 통한 지리정보의 공유가 활발히 진행될 것으로 예상된다. 그런데, 현재 정의된 웹 맵 서비스에는 3 차원 맵 서비스를 고려하고 있지 않다. 왜냐하면, 3 차원 데이터 모델에 따라 구축된 공간 데이터가 거의 없으며, 맵 출력을 위한 출력 요소 정의 언어인 SVG 또는 WebCGM 등이 3 차원 기하를 표현할 수 없기 때문이다. 이 논문에서는 OCG 의 웹 맵 서비스를 위한 표준 인터페이스를 준수하면서, 최소한의 확장을 통해 3 차원 맵 서비스를 지원하기 위한 웹 맵 서비스 컴포넌트를 제안한다. 3 차원 맵은 2 차원 공간 데이터와 속성 정보를 이용하여 생성하므로, 3 차원 공간 데이터베이스 구축을 위한 추가의 비용이 발생하지 않는다.

• Journal of Korean Society for Geospatial Information Science
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• v.12 no.2 s.29
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• pp.37-42
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• 2004

The purpose of this study is not only preserving and restoring our nation's precious cultural inheritances transmitted for half millennia but informing the world of them. This study also aims recognizing the necessity of transmitting them to prosperity, constructing three-dimensional database by using a photogrammetry and VRML method and utilizing basic data of treasure exhibition with the progress of exhibition technique development on cyber space. Therefore, in this study, I suggest three dimensional modeling method that acquire three dimensional database about cultural properties through photogrammetry method which can acquire three-dimensional coordinates with easy and can express various color and stuff-feeling by using VRML.