Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
Journal Basic Information
Journal DOI :
Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography
Editor in Chief :
Volume & Issues
Volume 29, Issue 6 - Dec 2011
Volume 29, Issue 5 - Oct 2011
Volume 29, Issue 4 - Aug 2011
Volume 29, Issue 3 - Jun 2011
Volume 29, Issue 2 - Apr 2011
Volume 29, Issue 1 - Feb 2011
Selecting the target year
3D Geopositioning Accuracy Assessment Using KOMPSAT-2 RPC
Oh, Kwan-Young ; Jung, Hyung-Sup ; Lee, Won-Jin ; Lee, Dong-Taek ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 1~9
DOI : 10.7848/ksgpc.2011.29.1.1
The objective of this paper is to improve the accuracy of the 3D geopositioning extracted from Rational Polynomial Coefficient(RPC) provide in the KOMPSAT-2 metadata files. In this paper, we developed the algorithm to adjust a RFM(Rational Functional Model), and could improve the accuracy of a RFM with this algorithm. Furthermore, when a RFM was adjusted with this algorithm, the effects of the number of GCPs on the accuracy of the adjusted RFM was tested. For accuracy assessment using adjusted RFM, 9 ground control points(GCPs) and 24 check points could be used. Results indicated that the root mean squared errors(RMSEs) of horizontal residual errors calculated 24 check points were 2.20(m). The achieved accuracy of three dimensional object-point determination was 1.72(m) in the X-dimension and 1.37(m) in the Y-dimension and 2.20(m) in the Z-dimension.
A Study on the Design Improvement and Information Service of Bicycle Road Considering Environmental Factor
Choi, Byoung-Gil ; Park, Hong-Ki ; Na, Young-Woo ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 11~20
DOI : 10.7848/ksgpc.2011.29.1.11
This study aimed to devise the method to construct safe and convenient bicycle road by considering the peripheral environmental factor related to using bicycle. Analyzing the existing design of bicycle road and construction case, this study established the method to design bicycle road that reflects site condition and presented the optimal design method for each type of bicycle road to construct safe and convenient bicycle road by analyzing the type of traffic accident for each type of bicycle road, surveying present situation and local survey. It was found that the optimum design of bicycle road for specification, width, curve radius, ascending slope, etc in consideration of peripheral environment and separating traffic between users of traffic means should be done by installing safety sign, safe facilities and separation facilities to design safe bicycle road. Further, the minimum traffic space of bicycle users and connection between bicycle roads should be ensured to design safe bicycle road. It is judged that information related to safety and convenience of bicycle road such as slope, route information, location of convenience facilities, information to the public traffic should be provided so as to activate the users of bicycle.
A Study on the Consecutive Renewal of Road and Building Information in the Multi-scale Digital Maps
Park, Kyeong-Sik ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 21~28
DOI : 10.7848/ksgpc.2011.29.1.21
In the existing digital map of the Ver.1.0, it is impossible to make a small scale digital map, which is under the 1/5000 scale map, by using the 1/1000 digital map which is the most large scale one. Because of this reason, the existing digital maps are produced into a 1/1000 and a 1/5000 map by means of two different scale aerial photos. The next generation digital map should be successively related to a small scale digital map based on the most large scale digital one. This is so important from the aspects of data share and the consecutive renewal. Ever since the development of the digital map of the Ver. 2.0, the possibility of making a multi-scale consecutive digital map has been presented and the related research has been done again. The most basic thing in the multi-scale digital maps is to decide the criteria of the generalization between the two scales. In this study, I try to formulate the criteria of the generalization required to make the 1/5000 digital map by using the 111000 digital one. In addition, I by to explore the application possibility of the consecutive renewal by carrying out auto-generalization.
The Changes in the Quality of Life Measure of the Seoul Metropolitan Area
Lee, Se-Hyung ; Chang, Hoon ; Rho, Jin-A ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 29~37
DOI : 10.7848/ksgpc.2011.29.1.29
The purpose of this research is to measure Quality of Life indices using Factor Analysis and Principle Component Analysis and to analyze the spatial patterns of Quality of life distribution in the Seoul Metropolitan Area in terms of spatial association using spatial statistics and spatial exploratory technique. In order to check the degree of clustering, this study used spatial autocorrelation indices, global Moran`s I index. In addition, local scale analysis was conducted using Moran Scatterplot and Local Moran`s I to identify the spatial association pattern and the high Quality of life. The analysis based on global statics showed that, in the Seoul Metropolitan Area, QoL Indices had been distributed with positive spatial association. According to the local spatial statistics, the general tendency of clustering H-H clusters which were mainly concentrated on the Seoul, L-H clusters were concentrated on the Kyunggi-Do and L-L Clusters showed the regional extent of lagging behind. However, in case of H-H, L-H Clusters they had been spread out in the Newtown as population increase.
A Comparison of 3D R-tree and Octree to Index Large Point Clouds from a 3D Terrestrial Laser Scanner
Han, Soo-Hee ; Lee, Seong-Joo ; Kim, Sang-Pil ; Kim, Chang-Jae ; Heo, Joon ; Lee, Hee-Bum ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 39~46
DOI : 10.7848/ksgpc.2011.29.1.39
The present study introduces a comparison between 3D R-tree and octree which are noticeable candidates to index large point clouds gathered from a 3D terrestrial laser scanner. A query method, which is to find neighboring points within given distances, was devised for the comparison, and time lapses for the query along with memory usages were checked. From tests conducted on point clouds scanned from a building and a stone pagoda, it was shown that octree has the advantage of fast generation and query while 3D R-tree is more memory-efficient. Both index and leaf capacity were revealed to be ruling factors to get the best performance of 3D R-tree, while the number of level was of oetree.
Debris Flow Analysis of Landslide Area in Inje Using GIS
Kim, Gi-Hong ; Yune, Chan-Young ; Lee, Hwan-Gil ; Hwang, Jae-Seon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 47~53
DOI : 10.7848/ksgpc.2011.29.1.47
From 12 to 16 July 2006, 4 days` torrential rainfall in Deoksan-ri, Inje-up, Inje-gun, Gangwon-do caused massive landslide and debris flow. Huge losses of both life and property, including two people buried to death in submerged houses, resulted from this disaster. As the affected region is mostly mountainous, it was difficult to approach the region and to estimate the exact extent of damage. But using aerial photographs, we can define the region and assess the damage quickly and accurately. In this study the debris flow region in inje, Gangwon-do was analyzed using aerial photographs. This region was divided into three sections - beginning section, flow section and sedimentation section. Informations for each section were extracted by digitizing the shot images with visual reading. Topographic, forest physiognomic and soil characteristics and debris flow occurrences of this region were analyzed by overlaying topographic map, forest type map and soil map using GIS. Comprehensive analysis shows that landslide begins at slope of about
, flows down at
slope, and at
slope it stops flowing and deposits. Among forest physiognomic factors, species of trees showd significant relationship with debris flow. And among soil factors, effective soil depth, soil erosion class, and parent materials showed meaningful relationship with debris flow.
Estimation of the carbon absorption of a forest using Lidar Data
Wie, Gwang-Jae ; Lee, Hyun ; Lee, Dong-Ha ; Cho, Jae-Myung ; Suh, Yong-Cheol ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 55~62
DOI : 10.7848/ksgpc.2011.29.1.55
Amidst the raising of climate change in relation to the earth`s environment as an international issue, there is a growing interest in forest resources. In particular, Korea faces a period in which we need to control carbon release pursuant to the Convention on Climate Change and the enforcement of the Kyoto Protocol; therefore, the importance of forests is becoming greater. Recently, there has been a focus on light detection and ranging (Lidar) which is a means of acquiring in a short time various necessary pieces of information for forest management as three dimensional geospatial information. In this study, the carbon absorption of a forest was measured by using the Lidar data obtained from the Lidar. Carbon absorption release was calculated on the basis of three criteria involving the minimum height of a tree, the density of the forest, and the minimum area of the forest, which are items proposed by the Forest resources surveyor. Through this study, a method of extracting the carbon absorption of a forest area using the Lidar data quantitatively was confirmed.
Vector Median Filter for Alignment with Road Vector Data to Aerial Image
Yang, Sung-Chul ; Yu, Ki-Yun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 63~69
DOI : 10.7848/ksgpc.2011.29.1.63
Recent growth of the geospatial information on the web made it possible to applicate spatial data. Also, the demand for rich and latest information shows a steady growth. The need for the new service using conflation of the existing spatial databases is on the increase. The information delivery of the services using the road vector and aerial image is reached intuitionally and accurately. However, the spatial inconsistencies in map services such as Daum map, Naver map and Google map is the problem. Our approach is processed to extract the road candidate image, match the template and filter the control points pair using vector median. Finally, CNS node and link are aligned to the real road with the aerial image. The experimental results show that our approach can align a set of CNS node and link with aerial imagery for daejon, such that the completeness and correctness of the aligned road have improved about 35% compare with the original roads.
Unsupervised Change Detection of Hyperspectral images Using Range Average and Maximum Distance Methods
Kim, Dae-Sung ; Kim, Yong-Il ; Pyeon, Mu-Wook ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 71~80
DOI : 10.7848/ksgpc.2011.29.1.71
Thresholding is important step for detecting binary change/non-change information in the unsupervised change detection. This study proposes new unsupervised change detection method using Hyperion hyperspectral images, which are expected with data increased demand. A graph is drawn with applying the range average method for the result value through pixel-based similarity measurement, and thresholding value is decided at the maximum distance point from a straight line. The proposed method is assessed in comparison with expectation-maximization algorithm, coner method, Otsu`s method using synthetic images and Hyperion hyperspectral images. Throughout the results, we validated that the proposed method can be applied simply and had similar or better performance than the other methods.
The Update of Korean Geoid Model based on Newly Obtained Gravity Data
Lee, Ji-Sun ; Kwon, Jay-Hyoun ; Keum, Young-Min ; Moon, Ji-Yeong ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 81~89
DOI : 10.7848/ksgpc.2011.29.1.81
The previous land gravity data in Korea showed locally biased irregular distribution. Especially, this problem was more serious in the mountainous area where the data density was significantly low. The same problem appeared in GPS/Levelling data thus the precision of the geoid could not be improved. From 2008, new gravity and GPS/Levelling data has been collected by the unified control point and survey on the benchmark project which were funded by the national geographic information institute. The newly obtained data has much better distribution and precision so that it could be used for update precision of geoid model. In this study, the new precision geoid has been calculated based old and new gravity data and this model showed 5.29cm of precision compared to 927 points of GPS/Levelling data. And the degree of fit and precision of hybrid geoid has been calculated 2.99cm and 3.67cm. The new gravimetric geoid has been updated about 27% over whole country. And it showed 42% of precision update due to collection of new gravity data on the Kangwon/Kyeongsang area which showed quite low distribution. In 2010, about 4,000 points of gravity and 300 points of GPS/Levelling data has been obtained by unified control and survey on benchmark project. We expect that new data will contribute to updating geoid precision and veri tying precision more objectively.
Vulnerability Analysis on Fire Service Zone using Map Overlay Method in GIS
Lee, Seul-Ji ; Lee, Ji-Yeong ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 91~100
DOI : 10.7848/ksgpc.2011.29.1.91
Fire stations should be located in optimal location to act quickly in case of emergency and minimize damages as a public facility that protects life and property of local residents. Siting fire stations without regard for the accessibility and occurrence factors of an accident may provide fire service unequally. Therefore service analysis is necessary to reduce the blind spot of disaster and safety and to offer equal fire-service at this time. Especially fire stations can service more efficiently than before by reducing a more likely vulnerable area. This study suggests methods of mapping index of value that represents vulnerability of the occurrence of an accident and extracting service zone map of fire stations, as an initial research for offering efficient fire service. Geographical distribution mismatch between service zone map and vulnerability map is figured out and vulnerable area for fire service is defined by using map overlay method.
Research of Matching Performance Improvement for DEM generation from Multiple Images
Rhee, Soo-Ahm ; Kim, Tae-Jung ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 29, issue 1, 2011, Pages 101~109
DOI : 10.7848/ksgpc.2011.29.1.101
This paper describes the attempts to improve the performance of an image matching method for multiple image. Typically, matching between two images is performed by using correlation between a reference and corresponding images. The proposed multiple image matching algorithm performs matching in an object space, chooses the image closest to the true vertical image as a reference image, calculates the correlation based on the chosen reference image. The algorithm also detects occluded regions automatically and keep them from matching. We could find that it is possible to create high quality DEM by this method, regardless of the location of image. From the performance improvement experiments through the occlusion detection, we could confirm the possibility of a more accurate representation of 3D information.