• 대한원격탐사학회지
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• 제27권3호
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• pp.379-388
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• 2011

At present, GEOBIA (Geographic Object-based Image Analysis), heir of OBIA (Object-based Image Analysis), is regarded as an important methodology by object-oriented paradigm for remote sensing, dealing with geo-objects related to image segmentation and classification in the different view point of pixel-based processing. This also helps to directly link to GIS applications. Thus, GEOBIA software is on the booming. The main theme of this study is to look into the applicability of geo-spatial processing open source to GEOBIA. However, there is no few fully featured open source for GEOBIA which needs complicated schemes and algorithms, till It was carried out to implement a preliminary system for GEOBIA running an integrated and user-oriented environment. This work was performed by using various open sources such as OTB or PostgreSQL/PostGIS. Some points are different from the widely-used proprietary GEOBIA software. In this system, geo-objects are not file-based ones, but tightly linked with GIS layers in spatial database management system. The mean shift algorithm with parameters associated with spatial similarities or homogeneities is used for image segmentation. For classification process in this work, tree-based model of hierarchical network composing parent and child nodes is implemented by attribute join in the semi-automatic mode, unlike traditional image-based classification. Of course, this integrated GEOBIA system is on the progressing stage, and further works are necessary. It is expected that this approach helps to develop and to extend new applications such as urban mapping or change detection linked to GIS data sets using GEOBIA.

• 한국디지털건축인테리어학회논문집
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• 제12권3호
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• pp.49-58
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• 2012

In Regarding urban geo-spatial information visualization in this study, visualization of physical attribute information is mostly related to the representation of spatial domain and physical objects, and visualization of non-physical attribute information has to do with visualizing citizens and their activity information in the physical environment. In particular, a citizen, one of the non-physical information attributes, is characterized by a constant mobility in the physical environment, and thus visualization of his/her activity information is vital in conveying information because this information may not be depicted with any given, fixed figures. In consideration of this difficulty, this study integrates interrelationship among urban space, human needs, social relations, and lifestyles into a 'high-tech' service where experience in time and space is possible. To analyze the web-service and visualization cases, the study has selected visualization indicators consisting of information representation objective, information representation means, and information representation result. The results of the case analysis through specific indicators set a range in information representation objective, means, and result, thereby forming a user-friendly environment in which representational results are readily available to users, and ultimately expanding the users' selection range coming with a variety of options. This study also assumes that a wide range of service provision is needed to reflect users' needs in developing urban geo-spatial service model, and the display of its results should visualize users' satisfaction to construct the best information needed to users.

• 한국지리정보학회지
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• 제23권4호
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• pp.68-82
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• 2020

최근 기후변화로 인해 대규모의 풍수해가 다수 발생하고 있다. 이를 대비하기 위해 정부에서는 국가재난관리정보시스템을 운영하고 있으나, 실제 재난 현장 정보를 공유하기 위한 데이터의 일원화와 표준화는 미흡한 상황이다. 본 연구에서는 재난 상황 인지 및 모니터링 목적의 재난정보 표출시스템을 구축하기 위한 DB 정보를 확보하고 품질기준을 제시하였으며 이를 바탕으로 현재 제공되고 있는 공간정보의 품질을 점검하였다. 점검 결과, 기관별로 다른 기준에 의해 공간정보가 구축되어 통합 사용에 어려움이 있으며, 이를 보완하기 위한 공통 기준을 마련해야 할 필요가 있는 것으로 사료된다.

• 한국지반공학회논문집
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• 제22권2호
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• pp.55-68
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• 2006

공간 지반 정보의 합리적 예측 목적으로, 대상 연구 지역을 포함하는 확장 지역 및 지표면 지질 자료 획득을 위한 추가 부지 조사라는 새로운 두 개념을 도입하여 GIS 기법 토대의 지반-지식 기반 지반 정보화 시스템(GTIS) 구축 기법을 개발하였다. 지역적 모범 적용 연구로서의 경주 지역에 대한 GTIS를 구축하기 위하여 개발된 기법에 따라, 기존 지반 조사 자료의 수집과 연구 목적의 지반 조사가 수행되었고 지표 지층 자료 확보를 위한 추가적인 부지 지표 조사가 실시되었다. 경주 지역의 지반-지식 기반 GTIS 내에서 지구통계학적 크리깅 기법을 적용하여 확장 지역에 대한 공간 지층 정보를 예측하였으며, 이로부터 연구 대상 지역의 공간 지층 정보를 추출하였다. 뿐만 아니라, 지반 관련 실무적 활용 목적의 지층 두께 및 기반암 심도의 공간 분포 지도를 구축하였다. 본 연구의 지반-지식 기반 GTIS와 일반적인 지반공학적 GIS와의 비교 결과, GTIS의 우월성을 표준 편차와 지질 전문가적 판단을 통해 확인하였다.

• 한국공간정보시스템학회:학술대회논문집
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• 한국공간정보시스템학회 2005년도 GIS/RS 공동 춘계학술대회
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• pp.351-354
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• 2005

NASA's remote sensing market analysis and forecast projects 3.3 billion dollars in 2005. On the other hand, a market research firm expected that world commercial remote sensing imagery, GIS software, Data, and value-added services will generate 8.3 billion dollar in 2007. It has been widely believed that geo-spatial information and service market is growing rapidly and has a huge potential, but it is not clearly understood where it is now and will be heading in the future. Also, it could be a significant question to answer where the industry in Korea fits the best in the world business trends and where it should be strategically heading to take a large market share. Furthermore, if it could be worth being considered as a Korean strategic industry for the future. Instead of pursuing direct answers to the questions, the author will start reviewing general business practices, major business transactions such as merging and acquisitions (M&A's) and initial public offerings (IPO's), and research on market capitalization and revenue of major companies. Throughout the study, a list of common grounds in the market was uncovered and realized as follows: (1) value-added data matters in geo-spatial information and service market; (2) private sector grows faster; (3) characteristics of multi-national industry; and (4) Dependency on major industry. Based on the findings, the author presents a list of recommendations as conclusions.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.466-469
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• 2005

In this study e-map component was designed and developed to possibly overlay with all kinds of thematic maps in various scales and provide the all detailed information by using high-resolution satellite image and GIS. Also, this system has powerful map composition tool to display map such as legend, scale bar, index map and so on. For this, this e-map component was designed by using UML and developed based on Windows 2000 and implemented by using Visual Basic 6.0 as development programming language, Map Objects 2.1 of ESRI as GIS component. Through this system, the forest officials could generate more detailed topography and desired thematic map. In addition, the data consistency in DBMS could be maintained by using SDE (Spatial Database Engine) for their job and share the standard forest database with others in real time.

• 한국지리정보학회지
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• 제8권1호
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• pp.40-48
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• 2005

본 논문은 공간 통계 분석에 기반한 해양오염에 대한 영향 평가를 위해 지리적 환경에 있는 오염원에 대한 지리객체와 지리필드를 규정하고, 해양 환경 영향 평가 시스템을 구현하고자 한다. 해양 영향 평가에 따른 어장의 등급 산출을 위하여 반베리오그램을 통해 공간적 상관관계의 정도를 분석하고, 크리깅 기법을 이용하여 공간자료의 등가분포도를 예측하고자 한다. 이 공간통계분석을 통한 어장의 오염 지역의 등급을 추정하고, 어장이 속한 등급에 따른 면적의 비율을 산출하고자 한다. 그래서 효율적 어장 환경의 판정을 통한 해양 영향 평가를 하는 어장 등급 산출에 기여 할 수 있다.

• 대한공간정보학회지
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• 제20권3호
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• pp.83-90
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• 2012

본 연구에서는 BIM 관련 선행연구들의 고찰을 통해 BIM의 동향과 BIM 관련 소프트웨어 분석 및 문제점을 파악하고자 한다. 또한 토목분야에서의 BIM 특히, 지형공간정보기술 기반의 항만구조물 BIM구축을 위한 레이어 표준화 방향을 제시하였다. 본 연구를 통하여 기존 2차원 및 건축기반의 BIM의 문제점과 토목-BIM의 적용 필요성을 파악할 수 있었다. 또한, 항만구조물을 대상으로 한 지형공간정보기술 기반의 토목-BIM의 레이어를 제시하고, 부산항 국제여객터미널을 대상으로 구축한 기존 BIM과의 비교분석을 통하여 항만분야의 지형공간정보기술 기반의 토목-BIM 표준화 및 적용 방향을 제시할 수 있었다.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2005년도 추계 학술발표논문집
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• pp.125-128
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• 2005

• 한국측량학회지
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• 제25권6_1호
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• pp.485-497
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• 2007

By the rapid development of Information Communication Technology (ICT) and Geo-spatial Technology (GT) and the increased usage of spatial data for planning and infrastructure management, the National Geographic Information System (NGIS) for more efficient and effective utilization of spatial information has been developed by the central government in Korea since 1995. NGIS is the base of Spatial Data Infrastructure (SDI). SDI is developed as one of National Information Infrastructures (NII). Among the hierarchy of SDI, National Spatial Data Infrastructure (NSDI) has very important role in the success of SDI development. Many research articles show that the USA's NSDI initiatives, development strategy have been strongly influenced all over the world. In these viewpoints, to propose the future directions of Korean NGIS, the development of NSDI strategy of USA is reviewed by literature through published book and internet resources. The conclusions of this study are as follow: 1) top-down and bottom-up approach are needed for integrated data sharing and standardization. 2) the creative and evolutionary vision and strategy has to be suggested. 3) the training program and lecture material has to be developed and diffused to the users and providers of spatial data. 4) governance system has to be built for NSDI evaluation. 5) the formation of geo-spatial forum to discuss the spatial-related problems and make research agenda, etc.