Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Korean Society for Geospatial Information System
Journal Basic Information
Journal DOI :
The Korean Society for Geospatial Information System
Editor in Chief :
Volume & Issues
Volume 19, Issue 4 - Dec 2011
Volume 19, Issue 3 - Sep 2011
Volume 19, Issue 2 - Jun 2011
Volume 19, Issue 1 - Mar 2011
Selecting the target year
Development of Web Based Walking Environmental Measurement System Using the Analytic Hierarchy Process Approach
Joo, Yong-Jin ; Lee, Soo-Il ; Kim, Tae-Ho ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 3~11
This paper aims to develop a web based GIS system which is able to evaluate and visualize the overall degree (in terms of pleasantness and aesthetics) of pedestrian friendliness of the environment, as well as pedestrians' convenience through a Walkability Indicators that simplify pedestrian environment elements into a quantitative index in accordance with characteristics of pedestrian space. To make this goal come true, we developed and applied Walkability index which can measure the pedestrian environment through reflecting quantitative Indicators based on GIS supplementing the limit of Literature Review. In addition, in order to develop index we utilized AHP(Analytic Hierarchy Process) and we displayed measurement result on study area through web GIS Services. The proposed pedestrian measurement system is expected to be applicable in the visualization of pedestrian movements and the evaluation of convenience levels of pedestrian environment.
Knowledge Based New POI Recommendation Method in LBS Using Geo-Ontology and Multi-Criteria Decision Analysis
Joo, Yong-Jin ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 13~20
LBS services is a user-centric location based information service, where its importance has been discussed as an essential engine in an Ubiquitous Age. We aimed to develop an ontology reasoning system that enables users to derive recommended results suitable through selection standard reasoning according to various users' preferences. In order to achieve this goal, we designed the Geo-ontology system which enabled the construction of personal characteristics of users, knowledge on personal preference and knowledge on spatial and geographical preference. We also integrated a function of reasoning relevant information through the construction of Cost Value ontology using multi-criteria decision making by giving weight according to users' preference.
Effects of DEM Resolutions in Site Classification
Kang, Su-Young ; Kim, Kwang-Hee ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 21~28
Site conditions affect the magnitude of loss due to geologic hazards including, but not limited to, earthquakes, landslides and liquefaction. Reliable geologic loss estimation system requires site information which can be achieved by GIS-based method using geologic or topographic maps. Slope data derived from DEM can be an effective indicator for classifying the site conditions. We studied and discussed the effect of different DEM resolutions in the site classification. We limited the study area to the south-eastern Korea and used two different resolutions of DEMs to observe discrepancies in the site classification results. Largest discrepancy is observed in the areal coverage of site class C(very dense soil and soft rock) and E(soft soil). Comparison of results shows that more areas are classified as site class B(general rock) or E(soft soil) when we use higher resolution DEM. The comparison also shows that more areas are classified as site class C or D(stiff soil) using lower resolution DEM. The comparison of results using resampled DEMs with different resolutions shows that the areal coverage of site class B and E decreases with decreasing resolutions. On the contrary, areal coverage of site class C and D increase with decreasing resolutions. Loss estimation system can take advantage of higher-resolution DEMs in the area of rugged or populated to obtain precise local site information.
Region-based Canopy Cover Mapping Using Airborne Lidar Data
Kim, Yong-Min ; Eo, Yang-Dam ; Jeon, Min-Cheol ; Kim, Hyung-Tae ; Kim, Chang-Jae ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 29~36
The main purpose of this paper is to make a map showing canopy cover by using airborne Lidar data based on region. Watershed algorithm was applied to elevation data to conduct segmentation, and then canopy cover was estimated through the regions extracted. In the process of transforming point data to raster, we solved the problems about overestimation and underestimation by using frequency method. Also, canopy cover map could be produced with various scales by differing level of segmentation and it provides more accurate and precise information than ones of ordinary public forest map.
A Study on Strategy Direction for Promoting the U-City Industry Through its Characteristics
Lim, Si-Yeong ; Shin, Dong-Bin ; Ahn, Jong-Wook ; Yi, Mi-Sook ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 37~43
In this study, we dealt with the U-City industry in Seoul as a case study for deriving the characteristics of it. Using the interindustry analysis, we made sure that U-City industry has a great forward linkage effect. It means that development of U-City industry have a good effect on the entire industry likewise the infrastructure. In this sense it is important that we have to promote it first. Based on this result, we suggested the strategy direction as follows: 1) Solving the emerging problem, 2) Identifying the roles of public and private sector, 3) Drawing up the plan for supporting.
Improvement Directions Of Related Laws System To Protect U-City Infrastructure Facilities
Kim, Byeong-Sun ; Lee, Jae-Suk ; Shin, Dong-Bin ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 45~52
This study aims to provide improvement directions of related laws system to protect U-City infrastructure facilities. For this, the study analyzes oversea infrastructure protection systems and domestic U-City laws system. Then, this indicates problems considering U-City infrastructure protection through Industrial-University-Institute experts' survey. Based on this survey, this study proposes improvement guideline of laws system to protect U-City infrastructure facilities, including enactment the Guideline of U-City Infrastructure Protection, obligation of U-City Infrastructure Protection, revision method of related laws system for protecting intelligent facilities, and Management System of U-City Infrastructure Facilities.
Research Trends of U-City Theses in Korea and Oversea
Kim, Kirl ; Chun, Joung-Yoon ; Shin, Dong-Bin ; Lim, Si-Yeong ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 53~61
The purpose of this study is to suggest development directions and elicit future research themes of U-City and future city by identifying the research trends of U-City theses. For this, meta-keywords were elicited based on the theses of U-City and future city published from mid 1990s to 2010. Centered on the meta-keywords, temporal keyword analysis was performed to compare the research trends of U-City and future city theses in Korea and oversea. The results show that most of U-City and future theses in Korea and oversea mainly dealt with technology. U-City theses in Korea have a tendency to research technology, methodology, service, planning and management in order from the early beginning. However, the U-City and future theses in oversea have a tendency to continuously study U-City applications to city through the model based on the technology and methodology. Therefore, the U-City research in Korea should focus on aspects of urban regeneration, urban scale, and so on. That is to say, the research in near future is required to apply the U-City to various urban themes.
The Establishment Plan of Knowledge-Based Community through the 3-D National Underground Information DB Design and Utilization Review
Song, Seok-Jin ; Jang, Yong-Gu ; Kang, In-Joon ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 63~70
The national spatial information systems project which is promoted by our country has been extended from existing 2-D geographic information to 3-D spatial information as the basic geo-spatial Information. Most of the construction of the ground geo-spatial information are completed or underway, on the other hand, the construction of the subsurface geo-spatial information has difficulty caused by the lack of the drilling data characterizing the subsurface. In terms of the construction of the geo-spatial information of the subsurface, the subsurface information is constructed and managed by the domestic institutions, but the subsurface information which is possessed by the institutions was not shared mutually so it is managed inefficiently. This study presented the 3-D national underground information DB design by dividing with the ground DB item which configures the state of the ground and the soil DB item which configures the state of the soil in order to increase the efficiency of the construction of the subsurface spatial information. The implementation & utilization of the national underground information application technology was reviewed by applying the constructed DB to the actual model area, and the national underground information knowledge-based community establishment plan was presented.
A Study on the Construction of Eco-Industrial Park and Recycling Network Using GIS Approach
Kang, Kyung-Ho ; Bang, Keon-Suk ; Sohn, Hong-Gyoo ; Jung, Jae-Hoon ; Kim, Chang-Jae ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 71~78
Korean government has promoted nationwide Eco Industrial Park (EIP) project to recycle by-products and wastes in industrial park since 2010. However, the corresponding management is insufficient to support the project. Considering the efficiency and effectiveness, GIS-based management can be an alternative of the current status. This study has focused on the construction of recycling network based on EIP using GIS approach. Two industrial parks located in Gyeonggi province were selected as study sites. GIS-based spatial location analysis was performed to determine the optimal location of recycling company, and to identify linkage of one manufacture to the other manufacturers based on the types of waste. Also, the optimal network for recycling of waste heat was established. Finally, the feasibility of the current GIS-based recycling network was established by performing benefit-cost analysis.
Misclassified Area Detection Algorithm for Aerial LiDAR Digital Terrain Data
Kim, Min-Chul ; Noh, Myoung-Jong ; Cho, Woo-Sug ; Bang, Ki-In ; Park, Jun-Ku ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 79~86
Recently, aerial laser scanning technology has received full attention in constructing DEM(Digital Elevation Model). It is well known that the quality of DEM is mostly influenced by the accuracy of DTD(Digital Terrain Data) extracted from LiDAR(Light Detection And Ranging) raw data. However, there are always misclassified data in the DTD generated by automatic filtering process due to the limitation of automatic filtering algorithm and intrinsic property of LiDAR raw data. In order to eliminate the misclassified data, a manual filtering process is performed right after automatic filtering process. In this study, an algorithm that detects automatically possible misclassified data included in the DTD from automatic filtering process is proposed, which will reduce the load of manual filtering process. The algorithm runs on 2D grid data structure and makes use of several parameters such as 'Slope Angle', 'Slope DeltaH' and 'NNMaxDH(Nearest Neighbor Max Delta Height)'. The experimental results show that the proposed algorithm quite well detected the misclassified data regardless of the terrain type and LiDAR point density.
Review and Comparative Analysis of Forest Biomass Estimation Using Remotely Sensed Data: from Five Different Perspectives
Cho, Kyung-Hun ; Heo, Joon ; Jung, Jae-Hoon ; Kim, Chang-Jae ; Kim, Kyung-Min ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 87~96
Carbon emissions and storages that are strongly related to global warming has have emerged as one of the important issues while many governments and researchers have been interested in climate change and pollution. In this regards, forest biomass estimation is quite importance since forest biomass works as an important medium of the global carbon cycle between the atmosphere and soil. Forest biomass estimation through field survey needs lots of time and labors, and has accessibility issues. Hence, many researchers have focused on the forest biomass approaches based on remotely sensed data. This research comprehensively reviewed forty one international studies using remote sensing data according to five different categories (i.e., location of study area, size of study area, biome, used remote sensing data, and estimation technology). It would be expected that the results of this study can be used for suggesting domestic research directions; domestic research in this field is at the beginning stage in terms of level of technologies and useful materials. As results, 39% out of the reviewed studies used the areas located in North America. 59% out of the researches dealt with small size of the study areas (less than 3,600km2). In case of biome, around 30% of the studies focused on the boreal/taiga areas. Moreover, 35% and 16% of the studies were carried out using Landsat series and Lidar data, respectively. Finally, regression analysis method was most frequently used for forest biomass estimation by 71% out of 41 studies.
Planar Patch Extraction from LiDAR Data Using Optimal Parameter Selection
Shin, Sung-Woong ; Bang, Ki-In ; Cho, Woo-Sug ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 97~103
LiDAR system has become a popular tool for generating 3D surface data such as Digital Surface Model. Extraction of valuable information, such as digital building models, from LiDAR data has been an attractive research subject. This research addresses to extract planar patches from LiDAR data. Planar patches are important primitives consisting of man-made objects such as buildings. In order to determine the best fitted planes, this research proposed a method to reduce/eliminate the impact of the outliers and the intersection areas of two planes. After finishing plane fitting, planar patches are segmented by pseudo color values which are calculated by determined three plane parameters for each LiDAR point. In addition, a segmentation procedure is conducted using the pseudo color values to find planar patches. This paper evaluates the feasibility of the proposed method using both airborne and terrestrial LiDAR data.
Land Cover Object-oriented Base Classification Using Digital Aerial Photo Image
Lee, Hyun-Jik ; Lu, Ji-Ho ; Kim, Sang-Youn ;
Journal of Korean Society for Geospatial Information System, volume 19, issue 1, 2011, Pages 105~113
Since existing thematic maps have been made with medium- to low-resolution satellite images, they have several shortcomings including low positional accuracy and low precision of presented thematic information. Digital aerial photo image taken recently can express panchromatic and color bands as well as NIR (Near Infrared) bands which can be used in interpreting forest areas. High resolution images are also available, so it would be possible to conduct precision land cover classification. In this context, this paper implemented object-based land cover classification by using digital aerial photos with 0.12m GSD (Ground Sample Distance) resolution and IKONOS satellite images with 1m GSD resolution, both of which were taken on the same area, and also executed qualitative analysis with ortho images and existing land cover maps to check the possibility of object-based land cover classification using digital aerial photos and to present usability of digital aerial photos. Also, the accuracy of such classification was analyzed by generating TTA(Training and Test Area) masks and also analyzed their accuracy through comparison of classified areas using screen digitizing. The result showed that it was possible to make a land cover map with digital aerial photos, which allows more detailed classification compared to satellite images.