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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 24, Issue 5 - Dec 2006
Volume 24, Issue 4 - Oct 2006
Volume 24, Issue 3 - Aug 2006
Volume 24, Issue 2 - Jun 2006
Volume 24, Issue 1 - Mar 2006
Selecting the target year
Analysis of Map Projection Distortion for UTM-K
Song, Yeong-Sun ; Heo, Joon ; Sohn, Hong-Gyoo ; Kim, Woo-Sun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 313~318
Recently, the single plane coordinate system which has one origin is required to create and manage continuous geographic framework data of entire Korean peninsula. For this, UTM-K (Univercial Transverse Mercator-K) was established in 2005. In this paper, the level of distortion was analyzed with respect to the central meridian and scale factor of UTM-K. The latitude and longitude values of the center point of 1/25000 scale digital maps were used for calculating the scale factor which was created by projection and the scale factor was used for index that presents the degree of distortion. As a result, accumulated distortion of scale factor by UTM-K map projection showed about
. On the other hand, the minimum distortion which was about
occurred when central meridian is
and scale factor of central meridian was 0.99994 respectively.
Comparison of Calibration Models for GPS Antenna Phase Center Variations
Park, Kwan-Dong ; Won, Ji-Hye ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 319~326
To get the highly-accurate and precise position of a GPS receiver, they should consider the state-of-the-art GPS force and measurement models. Especially, the phase center variations (PCV) of a GPS antenna can cause several centimeters of positioning errors in the vertical direction. In this study, we implemented four different models of PCV and evaluated their impact on the computed coordinates. The test data were taken from the 14 National Geography Information Institute permanent GPS stations and 30 Minisry of Government Administration and Home Affairs sites. For different combinations of calibration methods, an average of 1.3-2.6cm of height difference was observed. Also, we found a maximum error of
in the estimates of the precipitable water vapors.
A Study for Introducing a Method of Detecting and Recovering the Shadow Edge from Aerial Photos
Jung, Yong-Ju ; Jang, Young-Woon ; Choi, Yun-Woong ; Cho, Gi-Sung ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 327~334
The aerial photos need in a simple object such as cartography and ground cover classification and also in a social objects such as the city plan, environment, disaster, transportation etc. However, the shadow, which includes when taking the aerial photos, makes a trouble to interpret the ground information, and also users, who need the photos in their field tasks, have a restriction. Generally the shadow occurs by the building and surface topography, and the detail cause is by changing of the illumination in an area. For removing the shadow this study uses the single image and processes the image without the source of image and taking situation. Also, applying the entropy minimization method it generates the 1-D gray-scale invariant image for creating the shadow edge mask and using the Canny edge detection creates the shadow edge mask, and finally by filtering in Fourier frequency domain creates the intrinsic image which recovers the 3-D color information and removes the shadow.
A Study on Building Extraction from LiDAR Data Using LISA
Byun, Young-Gi ; Lee, Jeong-Ho ; Son, Jeong-Hoon ; Yu, Ki-Yun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 335~341
This paper aims at developing an efficient method that extracts building using local spatial association of raw LiDAR data without setting up empirical variables such as a minimum building area, and applying the method to survey data to evaluate the efficiency of that. To do this, LISA(Local Indicatiors of Spatial Association) statistics are used which reflect local variations that can be appeared in the research area. It can be also a preprocess that detects spatial outliers through the significance test of LISA statistics and interpolate using kernel estimation. Boundaries of buildings as well as buildings can be extracted based on quadrant of Moran Scatterplot. Experimental results show that the proposed method is promising in extracting buildings from LiDAR data automatically.
An Evaluation of Spatial Interpolation of Statistical Information Using Dasymetric Mapping
Lee, Byoung-Kil ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 343~350
For integrating and utilizing the statistical data, which is summarized by arbitrary areal unit such as demographics, with stellite imagery or other GIS data, areal unit of both data should be accorded. Dasymetric mapping is proposed as a useful method fur disaggregating the aggregated statistical data to finer areal unit or generating surface model from object data such as polygonal area. This research evaluate the effectiveness of dasymetric mapping by 1) summarizing the yellow page information by administrative district, 2) modeling the business density using dasymetric mapping, and 3) comparing the business densities of raw data and that of spatial interpolation result.
Determination of Priority in Installing Road in Farming and Fishing Communities by Using GIS & Statistical Analysis Techniques
Kim, Dong-Moon ; Lee, Sang-Yeun ; Park, Byung-Soo ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 351~358
The farming and fishing village roads is located in a mountainous geographical feature, a resident's movement zone is followed by many restrictions in economic activities or social activities. Establishment of general planning gets into guide of long-term development direction for road in farming and fishing villages area. This study examined and analyzed a regional characteristics such as a regional environment and traffic condition, etc. and an actual condition of farming and fishing village roads, selected a factor affecting a priority to open a road, calculated a weight per each factor by AHP & Statistical analysis techniques, converted it into GIS database, and determined a priority for paying forming and fishing village roads. It is that development precedence and estimation calculation are decided applying result of research, GIS and AHP and statistical processing techniques.
Development of Disaster Response and Management System using GIS Technique
Kim, Kam-Lae ; Cheong, Hae-Jin ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 359~365
Recently generated natural disaster of rainfall is transformed into nationwide generate form from a specific region of generated form that damages are steadily growing. such natural disaster lead to much influence such as socioeconomic, financial, physical and casualties etc, therefore model collection can be a step required establishment of systematically management foundation and offer of systematic solved plan. this study proposed to analyze and arrange pattern of disaster and systems designed plan and establishment further scientific, prompt service of disaster. with GIS technique for decision-making offer the necessary preliminary data. also, each city have orthophoto and digital elevation model that analyze real topography and situation. with establish management system in order to carry out appropriate service of disaster management and establish realistic management system. system had established that OpenGL make three dimensional illustrate scale image data and digital elevation model therefore a module of section analysis developed way to illustrate and to analyze topography and longitudinal section in screen.
DEM Generation by the Matching Line Using Exterior Orientation Parameters of the IKONOS Geo Imagery
Lee, Hyo-Seong ; Ahn, Ki-Weon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 24, issue 4, 2006, Pages 367~376
This study determines the optimum polynomial of exterior orientation parameters(EOPs) as a function of line number of linear array scanner. To estimate priori EOPs, meta data of IKONOS scene and ground control points are used. We select a first order polynomial and a constant for position elements modeling and rotation elements modeling. Positioning accuracy of the determined EOPs is compared with that of RPCs bias-corrected by the least squares adjustment. There is almost no difference between accuracies of the two methods. To obtain digital elevation model(DEM), matching line is established by the EOPs. The DEM is compared with DEM generated by ERDAS IMAGINE software, which utilizes the bias-corrected RPCs. Height differences of DEMs by the two methods are ranged within a allowable standard deviation. The produced DEM, therefore, shows accuracy similar to the verified method.