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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Korea Spatial Information Society
Journal Basic Information
Journal DOI :
The Korean Association of Geographic Inforamtion Studies
Editor in Chief :
Volume & Issues
Volume 15, Issue 4 - Dec 2007
Volume 15, Issue 3 - Nov 2007
Volume 15, Issue 2 - Jul 2007
Volume 15, Issue 1 - Apr 2007
Selecting the target year
A Study on Current Issues for the Realization of u-City
Kim, Jung-Hoon ; Yi, Mi-Sook ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 1~14
u-City is a new concept and phenomena of applying Information & Communications Technology(ICT) into real cities in Korea. In order to effectively integrate a city with high-tech ICT infrastructure, cutting-edge ICT is being integrated into physical urban environments from the planning and construction stage of a city. There are positive expectations regarding its effect on urban planning and citizens' lives. However, construction of u-city has technical limitations as well as institutional obstacles. This paper aims at identifying problems of current u-city practices and suggesting appropriate solutions for those problems. To do so, it first collects opinions from diverse experts. Then, it draws problems and suggests solutions in terms of u-infrastructure, u-service, policy and implementation process.
A Study on the Map Service Structure for the T-DMB (Terrestrial-Digital Multimedia Broadcasting) Using Data Carousel
Kim, Jung-Ok ; Ga, Chill-O ; Yu, Ki-Yun ; Kim, Yong-Il ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 15~23
Recently, Korea became the first country which started Terrestrial-DMB service. The DMB service is still at a very early stage throughout the world. At this stage, it is an important issue to develop DMB contents which distinguish DMB from traditional broadcasting by utilizing DMB's mobility. In this paper, we will propose outline of map service through DMB along with related services such as traffic and location information. This outline includes the map service protocol and map data structure for DMB. There is little research at the moment related to it, and this preliminary research enables map service through DMB. A map service would bring DMB a distinct advantage over traditional broadcasting. Moreover, further services based on broadcasting network and mobility would contribute to rapid growth of DMB.
The Suspended Sediment Change Detection of Imha Dam Using Multi-Temporal Satellite Data
Jeong, Jong-Chul ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 25~33
The purpose of this study is to assess spatio-temporal variation of Imha Dam water quality according to suspended sediment algorithm using Landsat and SPOT 5 data. In order to learn synchronous suspended sediment concentrations(SSC) in Imha Dam waters, the satellite remote sensing data are analyzed. The key procedure of this research is that we should know the relationships between suspended sediment concentrations and satellite-detected reflectance. However, the SSC algorithm has the limitation that it must be compared calculated SSC with synchronous ground-truth data in the Dam water. Based upon the linear response from satellite-detected reflectance, SSC algorithm validated an efficient algorithm to estimate proportional factor and then derived an empirical equation far SSC estimations.
A Study on Visualization of Urban Landscape Information Using 3D-GIS Topological Relationship
Jang, Mun-Hyun ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 35~52
Three-dimensional GIS, which provides spatial information through expression techniques of virtual reality close to the real world and the web, is one of the fields that attract a new attention. In particular, Open GIS Consortium(OGC) announced a topological relationship specification of spatial object which supports interoperability while interest in interoperability of spatial data is increasing. However, this specification is limited to two-dimensional spatial object. So this research established a topological relationship of three-dimensional spatial object in order to improve urban landscape and provide a foundation to use GIS. Based on this, this study proposes ways to visualize landscape information which is appropriate for new town's circumstances. It can be concluded that this research has a bigger meaning since it established a base of sharing information about realistic urban landscape that can be accessed regardless of place and time.
3D Boundary Extraction of A Building Using Terrestrial Laser Scanner
Lee, In-Su ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 53~65
Terrestrial laser scanner provides highly accurate, 3D images and by sweeping a laser beam over a scene or object, the laser scanner is able to record millions of 3D points' coordinates in a short period, so becoming distinguished in various application fields as one of the representative surveying instruments. This study deals with 3D building boundary extraction using Terrestrial Laser Scanner. The results shows that high accuracy 3D coordinates for building boundaries are possibly acquired fast, but terrestrial laser scanner is a ground-based system, so "no roofs", and "no lower part of building" due to trees and electric-poles, etc. It is expected that the combination of total station, terrestrial laser scanner, airborne laser scanner with aerial photogrammetry will contribute to the acquisition of an effective 3D spatial information.
Improvement of the Level-2 Land Cover Map with Satellite Image
Park, Jung-Jae ; Ku, Cha-Yong ; Kim, Byung-Sun ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 67~80
The land cover map represent the state of earth surfaces. It can be used as basic data to explore present conditions of earth surfaces and develop future plans for local areas. To produce the land cover map with efficiency, gathering geographic information from satellite images is important. Exporting, building, and managing processes on the land cover information are needed as well. In this study we aim to review the producing process of the level-2 land cover map in detail and enhance it. h present status of the producing process of the land cover map in Korea is reviewed, problems of the process are explored, and measures for improving it are proposed. The criteria for fixing boundaries and providing attributes for the land cover map are proposed. This proposed criteria may solve problems in a present producing process. The improving measures proposed in this study should be continuously revised in future studies.
The Estimation of the Cadastral Digital Map's Accuracy for the KLIS's Effective Operation
Hong, Sung-Eon ; Lee, Hyun-Joon ; Kim, Yun-Ki ;
Journal of Korea Spatial Information Society, volume 15, issue 1, 2007, Pages 81~94
Even though the data of digital cadastral map, stored in the Korea Land Information System(hereinafter referred to as "KLIS") has a wide variety of errors, it has been used in a cadastral surveying field without any compensating work. As a result, it has given rise to a lot of problems when we use this digital cadastral map in the cadastral surveying field. That is why we should analyse the accuracy of digital cadastral map which has been stored in the KLIS. In this context, this paper has been intended to provide acceptable proposals with regards to present operation of KLIS or the cadastral re-survey project in the future by analysing the data of digital cadastral map which is one of the layers of the KLIS. Our study results showed that the accuracy of both the location and area in the present KLIS datum was not satisfactory Therefore, in our own judgment, it is necessary to revise cadastral maps more accurately in order to use in the field of cadastral surveying or in carrying out the cadastral re-survey project.