• Proceedings of the Korean Institute of Interior Design Conference
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• 2008.05a
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• pp.179-183
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• 2008

A variety of design processes from 2D graphic to 3D models are meeting improved consumers' confidence of modern clients. However, the current design methods are limited to meet consumers' needs and express a design concept what a designer wants to show. Therefore the study here tries a test of hybrid space simulation combined with previous models and digital media technology, which can be used for multiple contents. The study can contribute to suggesting virtual space simulation that can help clients' spatial understanding in this media era and deliver emotional language of designers as well by utilizing the strong point of multi-sensible media.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.22-25
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• 2007

The purpose is to analyze space through phenomenological features of museum space with the background of studying patterns and characteristics appearing in modern museum space based on Perceptional Phenomenology by Merleau Phonty, and then giving meanings to our daily-life space and offering new museum space. This research studies about recognizing phenomenological cognitive experiences not as conception fixed in modern museum, analyzes phenomenological particularities based on Phenomenological conception by Merleau Phonty, and studies on the features appearing in museum space by phenomenological language focusing on museums since 1990's.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.39-41
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• 2012

센서 네트워크는 광범위한 지역에 분산된 센서 노드들로부터 환경 데이터를 수집하며, 이 데이터는 실생활의 다양한 애플리케이션에서 사용된다. 센서 네트워크에서의 데이터베이스는 전형적인 데이터베이스와 달리 시간적/공간적 질의를 효율적으로 처리할 수 있어야 한다. 그러나 기존의 센서 데이터베이스 연구에서는 특정 공간을 지정하기 위한 질의 언어 및 그 처리에 있어 한계점이 있다. 본 논문에서는 사용자 편의성을 증대시킨 공간지정 질의 및 처리 기법을 제시한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.604-607
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• 2004

한국의 수자원은 연간 강수량이 세계 평균보다 1.3배나 많음에도 불구하고 높은 인구밀도와 지형적 조건, 관수시설 및 물에 대한 인식 부족으로 물 부족 현상이 현실로 다가오고 있다. 또한 많은양의 정수된 물이 송수과정에서 땅속에서 새어나가고 있다. 그러나 현재의 누수탐지 방법으로는 정확한 누수의 위치를 찾기 어렵고, 많은 비용을 투입하고 있지만 현실적인 제약사항이 많아 그 효과는 기대치에 이르지 못하고 있다. 본 논문은 TBR(Time Domain Reflectometer)을 이용한 누수탐지 기법으로 탐색한 누수위치 및 파이프 정보를 실시간으로 모니터링하여 빠른 복구를 가능하게 하고, 누수 비용을 줄일 수 있는 누수탐지 지리정보시스뎀(Geographic Information System)을 구축하였고, 누수탐지와 지리정보시스템의 모니터링 효율성을 높이기 위한 공간데이터베이스의 설계에 대하여 기술하였다. 또한 독립적인 형식으로 공간데이터베이스를 구축하여 서비스를 제공하는 기존 GIS들 사이에 다양한 종류의 지리정보를 효율적으로 활용하기 위해 OGC에서 제안한 GML(Geography Markup Language) 문서로의 변환에 관한 가능성을 검증하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.70-72
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• 2004

SIMS는 공간 정보 관리 환경을 지원하기 위한 통합 관리 시스템으로서 다양한 공간 및 비공간 자료를 관리하고 여러 응용작업을 지원한다. 본 논문에서는 기존의 공간 데이터 마이닝 질의 언어가 처리하는 공간자료에 한정되지 않고, 자동 데이터 수집, 인공위성 측위 서비스, 원격탐사, GPS, 모바일 컴퓨팅 등의 다양한 자료라 시공간(Spatio-Temporal) 자료로부터 유용한 정보를 발견 할 수 있도록 SIMS를 기반으로 한 공간 데이터 마이닝 전용 시스템을 지원하는 공간 데이터 마이닝 질의 언어를 설계하였다.

• Korean Journal of Remote Sensing
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• v.24 no.5
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• pp.417-425
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• 2008

An image-based atmospheric correction software ATC is implemented using MATLAB and SML (Spatial Modeler Language in ERDAS IMAGINE), and it was tested using Landsat TM/ETM+ data. This ATC has two main functional modules, which are composed of a semiautomatic type and an automatic type. The semi-automatic functional module includes the Julian day (JD), Earth-Sun distance (ESD), solar zenith angle (SZA) and path radiance (PR), which are programmed as individual small functions. For the automatic functional module, these parameters are computed by using the header file of Landsat TM/ETM+. Three atmospheric correction algorithms are included: The apparent reflectance model (AR), one-percent dark object subtraction technique (DOS), and cosine approximation model (COST). The ACT is efficient as well as easy to use in a system with MATLAB and SML.

• Korean Journal of Remote Sensing
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• v.23 no.1
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• pp.43-53
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• 2007

In this study, two standard specifications such as GML (Geography Markup Language) from OGC (Open Geo-spatial Consortium, Inc.) and X3D (extensible 3D) from Web3D consortium were dealt with for a web-based 3D urban application without using commercialized tools. In the first step of this study, DEM (Digital Elevation Model) and 3D GIS data sets were converted to GML structure with attribute schema. Then, these GML elements were projected onto a common coordinate system, and they were converted to the X3D format for visualization on web browser. In this work, a 3D urban data model, as a simple framework model, is extended to a framework model having further detailed information, depending upon application levels. Conclusively, this study is to demonstrate for practical uses of GML and X3D in 3D urban application and this approach can be applied to other application domains regarding system integrators and data sharing communities on distributed environments.

• Journal of the Korean Society for Precision Engineering
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• v.10 no.4
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• pp.30-41
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• 1993

Developed in this paper is a feature based modeling system for the design of welded plat construction(WPC) which is composed of flat or bended plates represented as reference plane with a constant thickness. First, the necessity and the characteristics of the modeing system for WPC as compared with the assembly of mechanical parts are investigated. Secondly, feature library for the assembly of WPC is shown which contains several types of features like joint feature, groove feature, material feature, and precision feature. Thirdly, the assembly procedures are presented which mainly consist of both the assembly transformation and the correct assembly checking. Fourthly, weld lines of the assembled WPC are defined so that those can be used in the process planning or the manufacturing stage. Finally, a prototype by a geometric modeling software Pro/Engineer, a graphic software GL(Graphic Library), and C language on a CAD workstation IRIS.

• Journal of the Korean Institute of Landscape Architecture
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• v.45 no.6
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• pp.171-184
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• 2017

The designers pursue the thoughtful and wide thinking through the accumulation of knowledge and cultivation of insights for making use of high-level design philosophy and language. The purpose of this study is to investigate characteristics of concept figuration types based on designer's 'memory' in landscape design. The results of this study are as follows. First, the design idea starts to be based on the language and image memory of the designer. The figuration types are composed of the verbal and visual view which are representative communication means. Second, the verbal concept figuration of landscape design consists of two types. The symbolic language of the title as a design theme can be a 'phrase', and it should have a hierarchial balance between the master and the sub. 'Descriptive shape of conceptual scenario' is a text that expresses the concept narratively in order that the reader virtually experiences designed landscapes. Third, visual concept figuration of landscape design is divided into three types. 'Simple visualization of a diagram' is easily embodied through a simple graphic using symbols, comments, images and key words. 'Concept sketch and shape of core idea' is useful to grasp the core of the idea such as physical element, form attribute of space and spatial relation at the initial phase of the concept. 'A collage and montage that create a new shape with a combination of images' are a collection of materials and images that provide a new perspective. These are tools to depict them in a compressed way after recording landscapes phenomenon.

• Journal of Korea Spatial Information System Society
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• v.6 no.1 s.11
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• pp.31-50
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• 2004

With the growth of wireless communication networks and mobile devices taking in GPS, Location-Based Service(LBS) is becoming an integral part of mobile applications. LBS can deal with location-aware features such as persons holding mobile phones or vehicles equipped with GPS, and provide the users with the location information of the features. Thus it is necessary to develop moving object database systems to store, manage, and query moving objects which change their locations continuously as time passes. In this paper, we design and implement a query processing component which deals with moving objects as a key data type. For this component, we define a new SQL-like query language(called MOQL) and as a consequence, design and implement modules that analyze and execute queries. It supports various types of operators that process range queries, infer topological relations, compute trajectories, and find k-nearest neighbors. It can be used as a subsystem if other application systems which deal moving objects and also supports ADO.NET interface that can be used to interact end-users.