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 25, Issue 6_2 - Dec 2007
Volume 25, Issue 6_1 - Dec 2007
Volume 25, Issue 5 - Oct 2007
Volume 25, Issue 4 - Aug 2007
Volume 25, Issue 3 - Jun 2007
Volume 25, Issue 2 - Apr 2007
Volume 25, Issue 1 - Feb 2007
Selecting the target year
Matching Size Determination According to Land Cover Property of IKONOS Stereo Imagery
Lee, Hyo-Seong ; Park, Byung-Uk ; Lee, Byung-Gil ; Ahn, Ki-Weon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 587~597
This study determines matching size for digital elevation model (DEM) production according to land cover property from IKONOS Geo-level stereo image. We applied area based matching method using correlation coefficient of pixel brightness value between the two images. After matching line (where "matching line" implies straight line that is approximated to complex non-linear epipolar geometry) is established by exterior orientation parameters to minimize search area, the matching is carried out based on this line. The experiment is performed according to land cover property, which is divided off into four areas (water, urban land, forest land and agricultural land). In each of the test areas, matching size is selected using a correlation-coefficient image and parallax image. As the results, optimum matching size of the images was selected as
pixels window and
pixels window in the water area, urban land, forest land and agricultural land, respectively.
Economic Analysis of Floodplain Forecast using GIS and MD-FDA
Choi, Hyun ; Ahn, Chang-Hwan ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 599~611
Among natural disasters that lead to devastating damage, floods from heavy rains have been causing hundreds of victims and a great loss of their properties every year. Basically, there is no other way to deal with the problem considering the characteristics of natural disaster, but more specific studies for a preventive measure of flood has been in progress so far. However, the controversy over the problem is going on due to the objection of some environmental organizations or some economic reasons. The key point is to select the most likely area for a preventive measure of floods where a huge amount of the national budget is put into it. This is the factor which judges whether it would be a success or failure. This study aims to provide some basic data for deciding the priority order in a disaster preventing plan by drawing more potential damage areas from the connection with GIS and using them into the economic analysis for flood prevention industries.
Optimal National Coordinate System Transform Model using National Control Point Network Adjustment Results
Song, Dong-Seob ; Jang, Eun-Seok ; Kim, Tae-Woo ; Yun, Hong-Sic ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 613~623
The main purpose of this study is to investigate the coordinate transformation based on two different systems between local geodetic datum(tokyo datum) and international geocentric datum(new Korea geodetic datum). For this purpose, three methods were used to determine seven parameters as follows: Bursa-Wolf model, Molodensky-Badekas model, and Veis model. Also, we adopted multiple regression equation method to convert from Tokyo datum to KTRF. We used 935 control points as a common points and applied gross error analysis for detecting the outlier among those control points. The coordinate transformation was carried out using similarity transformation applied the obtained seven parameters and the precision of transformed coordinate was evaluated about 9,917 third or forth order control points. From these results, it was found that Bursa-Wolf model and Molodensky-Badekas model are more suitable than other for the determination of transformation parameters in Korea. And, transforming accuracy using MRE is lower than other similarity transformation model.
Drawing of Sea Mapping using Sound Detector
Lee, Jae-Gi ; Kim, Myoung-Bae ; Kim, Kam-Lae ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 625~633
Recently human beings are enforcing marine investigations to extend their living environment from land to the sea. Therefore, this study grasped objects in the bottom of the sea and its topographical undulation and acquired topographic map with a sound detector. In result, This study acquired their images with a sound detector and can draw up a Drawing of Sea Mapping and a three-dimensional modeling map.
Updating Digital Map using Images from Airborne Digital Camera
Hwang, Won-Soon ; Kim, Kam-Rae ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 635~643
As the availability of images from Airborne Digital Camera with high resolution is expanded, a lot of concern are in the production and update of digital map. This study presents the method of updating the digital map at the scale of 1/1,000 using images from Aerial Digital Camera. Geometric correction was completed using GPS surveying data. For digital mapping, digital photogrammetric system was utilized to digitize buildings and roads. The absolute positional accuracy was evaluated using GPS surveying data and the relative positional accuracy was evaluated using the digital map produced by analytical mapping. The absolute positional accuracy was as follows: RMSE in X and Y were
, and average distance error was 0.208m. The relative positional accuracy was as follows: RMSE in X and Y were
, and average distance error was 0.337m. Accuracies of updating digital map using images from airborne Digital Camera were within allowable error established by NGII. Consequently, images from airborne Digital Camera can be used in various fields including the production of the national basic map and the GIS of local government.
Generation of Progressively Sampled DTM using Model Key Points Extracted from Contours in Digital Vector Maps
Lee, Sun-Geun ; Yom, Jae-Hong ; Lim, Sae-Bom ; Kim, Kye-Lim ; Lee, Dong-Cheon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 645~651
In general, contours in digital vector maps, which represent terrain characteristics and shape, are created by 3D digitizing the same height points using aerial photographs on the analytical or digital plotters with stereoscopic viewing. Hence, it requires lots of task, and subjective decision and experience of the operators. DTMs are generated indirectly by using contours since the national digital maps do not include digital terrain model (DTM) data. In this study, model key points which depict the important information about terrain characteristics were extracted from the contours. Further, determination of the efficient and flexible grid sizes were proposed to generate optimal DTM in terms of both quantitative and qualitative aspects. For this purpose, a progressive sampling technique was implemented, i.e., the smaller grid sizes are assigned for the mountainous areas where have large relief while the larger grid sizes are assigned for the relatively flat areas. In consequence, DTMs with multi-grid for difference areas could be generated instead of DTMs with a fixed grid size. The multi-grid DTMs reduce computations for data processing and provide fast display.
A Study on the Application of Copyright for Digital Maps in Korea
Heo, Min ; Seo, Chang-Wan ; Yoon, Ha-Su ; Park, Hong-Gi ; Choi, Yun-Soo ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 25, issue 6_2, 2007, Pages 653~663
The purpose of this study is to suggest concrete approaches of copyright application among various map price policies to establish the system of a digital map market, to revitalize its market, and to give the public better map services. To do this, we analyzed copyright law in Korea and the copyright protection of digital map in foreign countries firstly, investigated the applicability of copyright to the map market in Korea, analyzed the effect on this market, and suggested an direction of the revision for the Surveying law and the National Geographic Information (NGlS) law lastly. We drew several conclusions. Firstly, the protection of the rights of database makers is the best approach to protect digital maps in korea. Secondly, we need to adopt copyright to the Surveying law and the National Geographic Information Systems (NGlS) law. Lastly, establishing a copyright trust organization to improve the quality of digital maps and to manage various affairs is needed.