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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korea Spatial Information Society
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Journal DOI :
The Korean Association of Geographic Inforamtion Studies
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Volume & Issues
Volume 17, Issue 4 - Dec 2009
Volume 17, Issue 3 - Nov 2009
Volume 17, Issue 2 - Jul 2009
Volume 17, Issue 1 - Apr 2009
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Gyeonggi21Search 2.0: A Geographic and Regional Information Retrieval System based on Correlated Keywords
Yun, Seong-Kwan ; Lee, Ryong ; Jang, Yong-Hee ; Seong, Dong-Hyeon ; Kwon, Yong-Jin ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 1~14
Demands for a system which enable users to retrieve any kind of geographic and regional information over the Web have been increasing. However, in order to obtain geographic or regional information over the web, users still need to search web pages related to region by inputting keywords and to arrange the searched results with map. We can solve that problem by using the fact that most of geographic and regional information contain geographic keywords related to location. In this paper, we propose a system to retrieve geographic and regional information efficiently. For the purpose, we present a conceptual model based on three layers of "Real-World", "Knowledge", and "Applications", from the web space and construct the above link process. These layers are connected to each other and enable users to navigation information over the linkage. Especially, users can obtain various correlated information about geographic information and properties.
Study on the Legal Establishment of u-City Management Center
Cho, Chun-Man ; Kim, Jung-Hoon ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 15~23
For the development and management of u-City(ubiquitous city), Ubiquitous City Construction Law was enacted(March 3, 2008) to form the legal basis of u-City plan, construction and managements afterwards. Among u-City elements, the u-City Management Center has its own meaning and importance in roles which are crucial to the u-City developments, and its legal establishment is one of the core u-City realization factors. In spite of its crucial position for u-City, the legal arrangement of its basis concept, physical/systematic structures, and managerial finance sources and their standardizations are very immature. Therefore, the purpose of this study is to analyse its overall problem issues and then to suggest the basic directions and enforcement strategies to form its legal basis.
Techniques for Hazard Analysis of Curved Road Based on USN
Ko, Ik-June ; Oh, Byoung-Woo ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 25~37
In this paper, we propose techniques for hazard analysis of curved road based on USN. The techniques consist of models and algorithms. Models of curved road, road direction, sensor, vehicle and hazard are proposed. To analyze hazard in curved road and give warning to corresponding vehicle in realtime multi-level algorithms are proposed. An application program implements the models and algorithms to simulate proposed techniques with real-time visualization.
Test-Bed Establishment Scheme for Terrestrial Laser Scanner' Performance Evaluation
Lee, In-Su ; Tcha, Dek-Ki ; Kim, Su-Jeong ; Kim, Jin ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 39~49
3D terrestrial laser scanners record high precision three-dimensional coordinates of numerous points on an object surface in a short period of time, and is applied to a wide variety of fields including geodesy, and civil engineering, archaeology and architecture, and emergency service and defence, etc. However, most of terrestrial laser scanner utilized in homeland, were imported from foreign country, and also was not authorized formally as the surveying instrument. Therefore, standard test facility to calibrate and perform its evaluation in order to utilize it in a variety of fields is required. This study deals with the test facility of foreign countries for terrestrial laser scanner and suggest the establishment scheme of domestic test facility.
Digital Watermarking of 2D Vector Map Data for the Accuracy and Topology of the Data
Kim, Junh-Yeop ; Park, Soo-Hong ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 51~66
There have been concerned about the copyright as numerous data are digitalized because of the growth of performance of the computer and Internet. Digital watermarking is one of strong methods to protect copyright. We proposed a novel digital watermarking for vector map data. Although vector map data are used widely in GIS, there is little interest in copyright. The proposed method is to embed and extract watermarks using CRC principle. The experimental results show that this method can protect the copyright of the vector map by extracting embedded watermarks. Therefore, the proposed method can be utilized as the technique to protect vector map data.
Study on Massive Mobile Mapping Data Management Systems using Exif Tags and Data Synchronizations
Woo, Hee-Sook ; Kwon, Kwang-Seok ; Ahn, Ki-Seok ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 67~77
Mobile mapping systems with CCD cameras, GPS and IMU etc. can acquire massive photos and geographic informations along by roads. But it is easy to involve many errors or omissions of images and informations about roads and facilities with various files. And there were contained any conflicts or non-consistencies in massive mobile mapping data which were acquired by multiple survey teams in various survey regions. As an image tag standard, Exif helps us to encapsulate the precise GPS times and essential informations in the header of JPEG files and uses with the identification code for consistent managements of massive mobile mapping data in this paper. And Systematic management systems with data synchronization technology manage more consistently massive photos and their information.
The conceptual information model for sensor-based urban facilities management - focused on urban ground and underground facilities -
Kim, Eun-Hyung ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 79~87
The adoption of ubiquitous technologies is increasing for the realization of new effective u-City services. u-City is defined as a next-generation informatization city that can innovate a city's various functions, such as improving the welfare of the citizenry, ensuring safety based on systematic urban management, improving the quality of lives, and increasing convenience in city life, by merging cutting-edge information and telecommunication infrastructures and ubiquitous information services with urban space. There is therefore a need to recognize that a successful u-City implementation strategy involves developing the previous UIS into a ubiquitous technology-based UIS and integrating UIS's various urban informations with effective u-City services. In this paper, for UIS-based u-City implementation, the intelligent integration model of urban spatial information based on interoperability is proposed.
Comparison and Analysis on the Geophysical data Using Bathymetric Surveying Product
Kim, Yong-Cheol ; Choi, Yun-Soo ; Park, Byung-Moon ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 89~102
The information of ocean topology is the fundamental source which is necessary for understanding the ocean, producing nautical charts and delimiting maritime boundaries. An echo sounder is being used generally to collect undersea bathymetric data, but an indirect method such as geophysical data acquired by satellites is being used recently. In this study, the outputs of ocean surveying for the production of the Basic Maps of the Sea in 1996 and 1997 in the East Sea and the bathymetric data produced by geophysical data are compared and analyzed. The study areas are Ulleung Plateau, Ulleung Basin and the southern area of Ulleung Basin which have different geophysical characteristics. Through this study, we found that the bathymetric data acquired by an indirect method using satellite is similar to the field surveying results in general configuration of ocean floor and average depth. However, the minimum square error is about 100m in 1700m depth, and it has been observed a local error up to 1000m. In addition, it has been found that the detailed undulation of ocean topology is shown on the gravity data which is acquired by the research vessel.
Accuracy Improvement of Surveying & Mapping for Seabed Facilities
Kim, June-Sik ; Choi, Yun-Soo ; Park, Sun-Mi ; Kang, Moon-Kwon ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 103~115
Recently, the seabed facility is gradually being increased based on the development of harbor and the coastal area. However, the comparison between the survey data with the chart still shows the significant differences leading to various disasters over sea accident. Therefore, in this study, the investigation on the seabed facility were performed in 5 areas through an accuracy analysis using an up-to-date surveying equipment(MBES, SSS and SBP). Based on the study more systematic management on the seabed facility, more accurate method on the surveying, and some considerations on the related policies are suggested. Through the study, we obtained more accurate measurement on depth and seabed piping forms in Jakdo and Pyong-tack, on sunken ship in a Mok-po, on seabed crater in Je-ju. In addition, it was possible to present the method for the construction of information infra and a connection with the seabed facility. The criteria on the equipment's specification, surveying method and procedures are set by the experiments and the investigation and surveying accuracy on the seabed facilities are also suggested.
Evaluation of MODIS NDVI for Drought Monitoring : Focused on Comparison of Drought Index
Park, Jung-Sool ; Kim, Kyung-Tak ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 117~129
South Korea has been undergoing spring drought periodically and diverse researches using vegetation index have been carried out to monitor spring droughts. The strength of the vegetation index-based drought monitoring is that the monitoring method enables efficient spatio-temporal grasp of changes in drought events. According to the development of low resolution satellite images such as MODIS, which are characterized by outstanding temporal resolution, the use of the method is expected to increase. Drought analysis using vegetation index considered only meteorological factor as a cause that affects vitality of vegetation. But many indirect and direct factors affect vegetation stress, So many uncertainties are involved in such method of analysis. To secure objectivity of drought analysis that uses vegetation index it is therefore necessary to compare the method with most representative drought analysis tools that are used for drought management. In this study, PDSI and SPI which a meteorological drought index that quantifies drought and that is used as a basic index for drought monitoring and MODIS NDVI are compared to propose correlation among them and to show usefulness of drought assessment that uses vegetation index. This study shows changing patterns of NDVI and SPI 6-month are similar and correlation between NDVI and SPI was highest in inland vegetation cover.
A Study on Methodology of U-City Promotion(Top-Down vs Bottom-Up Approach Model)
Lee, Sang-Hun ; Kim, Hyong-Bok ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 131~144
Recently, a lot of local autonomous entities are promoting Ubiquitous City(U-City) Construction by integrating Information Communication Technology(ICT) with city development, and also internationally, a lot of cities are making efforts to develop U-City to intensify a city's competitive strength and improve life quality of city dwellers. In keeping with such a stream of the times, each local autonomous entity and project developer are developing a lot of methodologies to establish optimal U-City in corresponding cities and also inquiring into a variety of development procedures, such as connecting existing urban development methods with information establishment methods. The method used usually is to establish Information strategy Plan(ISP) for a city which will be developed through consulting in the stage of city development planning. ISP is to establish vision & strategy for building the ubiquitous city and is a methodology including city vision, strategy, goal, and implementation method, etc. However, due to a lot of variables, such as a variety of city environment, establishment period, budget, information technology, and etc., it is difficult to contain establishment plans for every occasion in a similar method, in reality. Therefore, it is naturally necessary to suggest plans for city vision & strategy, and selection of element technology/service. Thus, this paper suggests models for vision & strategy establishment of U-City and suggests Top-Down Approach and Bottom-Up Approach method as a plan for U-City establishment. In addition, this paper analyzes general promotion methodologies for constructing U-City and analyzes how these two strategic methods [Top-Down Approach and Bottom-Up Approach] for city vision establishment are composed in such a methodology, to define and analyze its constituent plan.
Analysis of the undergraduate GIS course for Accreditation
Koh, June-Hwan ;
Journal of Korea Spatial Information Society, volume 17, issue 1, 2009, Pages 145~157
Rapidly evolving field of GIS and the social demand for university education to address the gap in the training of human resources, and future-oriented, engineering accreditation system based on the introduction of measures in the field of GIS is the need. In this thesis, the domestic and international undergraduate curriculum including University of Seoul's was analysed. A GIS curriculum of the domestic and abroad department course was analyzed. The present status of the domestic engineering accreditation and problems were analyzed and a desirable casting plan was shown through the abroad GIS related accreditation case analysis to analyze the validity of the engineering accreditation introduction of the GIS field. A standardized GIS curriculum was shown through the analysis of the core curriculum and the body of knowledge of the GIS field shown at the advanced of foreign countries all together. The industry-academia cooperation forum which made the Surveying and GIS related society the center by a political alternative, the construction of the caucus and the argument to execute this effectively are needed.