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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
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Volume & Issues
Volume 23, Issue 4 - Dec 2005
Volume 23, Issue 3 - Sep 2005
Volume 23, Issue 2 - Jun 2005
Volume 23, Issue 1 - Mar 2005
Selecting the target year
The Study on the Development of Analysis and Management System for Traffic Accident Spatial DB
Yu Ji Yeon ; Jeon Jae Yong ; Jeon Hyeong Seob ; Cho Gi Sung ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 345~352
In up-to-date information anger time it is caused by with business of traffic accident control and analysis and two time it accomplishes a business. National Police Office which controls a traffic accident does not execute an up-to-date technique. And, it is working yet by the hand, There is to traffic accident analysis and the research regarding the analysis against the research which it follows in geography element and composition element and an accident cause is weak. Consequently, effectively establishment and it enforces a traffic safety policy and from the hazard which it evaluates traffic accident data the system and scientific analysis against a traffic accident occurrence cause and a feature in basic must become accomplished. The research which it sees constructs a traffic accident data in GIS base. It is like that, it uses the PDA where is not the collection of data of text form in existing and at real-time it converts store and an accident data rightly in standard traffic accident data form and it will be able to manage. It was related with a space data peculiarity and the research regarding the system development with the geography analysis data about an accident cause under manifesting it accomplished.
Accuracy Analysis of New Geopotential Model using GPS/Levelling Data
Yun Hong-Sic ; Cho Jae-Myoung ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 353~358
The purpose of this paper is to evaluate a new geopotential model, EIGEN-CG01C which had been developed from CHAMP and GRACE mission observations and surface gravity data. The accuracy analysis was conducted by comparing the geoidal heights computed from two types of geopotential models (i.e., EIGEN-CG01C and EGM96) with spirit leveled GPS bench mark. To this end, three hundred twenty GPS leveled bench marks are used as bases for the numerical investigation. From the analysis, it was possible to conclude that EIGEN-CG01C was more suitable to upgrade the KGEOID 98 since the results that the EGM96 was slightly biased.
A Study on Airborne LiDAR System Calibration and Accuracy Evaluation
Choi, Yun-Soo ; Kong, In-Ku ; Lee, Kang-Won ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 359~366
Airborne LiDAR integrated with on-board GPS/INS and scanning technology is a state-of the-art system for direct 3D geo-spatial data acquisition. In this study, LiDAR data were calibrated using ground points in calibration site for the higher system accuracy. The accuracy results are
in horizontal and
in vertical. The results show that LiDAR system has capability for precise DEM and contour generation, 3D urban modeling and engineering design.
Damage Degree Valuation of Forest Using NDVI from Near Infrared CCD Camera and Spectral Radiometer in a Forest Fire Area
Choi, Seung-Pil ; Kim, Dong-Hee ; Park, Jong-Sun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 367~374
Recently, forest damage has occurred often and made big issues. Among them, the damage by forest fire is not only damage of itself but also being connected with secondary damage like a flood. This is the fact that a forest fire is caused rather artificially by people than nature. In this study, we try to investigate damage of a forest fire through spectral reflectance of a plant community surveyed using a near infrared CCD camera and a SPM (Spectral Radiometer) as advanced work to use satellite image data. That is, damage of a forest fire by the naked eye observation was divided into the No damage, the light damage, the serious damage and we estimated activity of forest and grasped revival possibility of forest. Through correlation analysis between the spectral reflectance by SPM and the near infrared CCD camera, we could get high correlation in the No damage and light damage. Therefore, when we surveyed damage of a forest fire, we could grasp damage, that is hardly observed by the naked eye by, using jointly the spectral radiometer and the near infrared CCD camera.
3D GIS Network Modeling of Indoor Building Space Using CAD Plans
Kang Jung A ; Yom Jee-Hong ; Lee Dong-Cheon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 375~384
Three dimensional urban models are being increasingly applied for various purposes such as city planning, telecommunication cell planning, traffic analysis, environmental monitoring and disaster management. In recent years, technologies from CAD and GIS are being merged to find optimal solutions in three dimensional modeling of urban buildings. These solutions include modeling of the interior building space as well as its exterior shape visualization. Research and development effort in this area has been performed by scientists and engineers from Computer Graphics, CAD and GIS. Computer Graphics and CAD focussed on precise and efficient visualization, where as GIS emphasized on topology and spatial analysis. Complementary research effort is required for an effective model to serve both visualization and spatial analysis purposes. This study presents an efficient way of using the CAD plans included in the building register documents to reconstruct the internal space of buildings. Topological information was built in the geospatial database and merged with the geometric information of CAD plans. as well as other attributal data from the building register. The GIS network modeling method introduced in this study is expected to enable an effective 3 dimensional spatial analysis of building interior which is developing with increasing complexity and size.
Accuracy Improvement of GPS/Levelling using Least Square Collocation
Yun Hong-Sic ; Lee Dong Ha ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 385~392
This paper describes an accuracy analysis of newly developed gravimetric geoid and an improvement of developed geoid using GPS/Levelling data. We developed the KGEOID05 model corrected with the correction term. The correction term is modelled using the difference between GPS/Levelling derived geoidal heights and gravimetric geoidal heights. The stochastic model used in the calculation of correction term is the least squares collocation technique based on second-order Markov covariance function. 373 GPS stations were used to model the correction term. The standard deviation of KGEOID05 is about 11 cm and it indicates that we can be determined accurate heights (
) when we made precise modelling using KGEOID05 and a few GPS measurements for the local area.
Utility of Separable Evaluation of the Vegetation Cover Rates and Vegetation Vigor Using Spectral Reflectance
Choi, Seung-Pil ; Park, Jong-Sun ; Kim, Hyung-Jin ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 393~399
Since vegetations are near the wavelength range in 700nm and have absorbent as well as reflective wavelength ranges, there is a much difference in terms of its reflection rate. There are currently many researches on vegetation index being conducted in order to apply the remote-sensing technology to vegetations rising their characteristics of absorbent and reflective wavelength ranges. Normalized Difference Vegetation Index (NDVI) and Perpendicular Vegetation Index (PVI) have been most commonly used. It is usually the evaporation, carbon-dioxide consumption, and chlorophyll density that represent the activity of vegetation, but chlorophyll density is the most commonly used among them. Since the red wavelength range used to obtain the NDVI and PVI has a strong extinction of chlorophyll, it is also useful to test chlorophyll density. The NDVI, in particular, is used to identify the vegetation conditions summarily, and thus, is suitable for initiative researches. Nevertheless, since these vegetation index produce mixed information of the Vegetation vigor and vegetation cover, it is essential to monitor a wavelength range that is independent from redundancy of the Vegetation vigor and vegetation cover. Although many vegetation indices have evaluated both the vegetation vigor and Vegetation cover simultaneously, this research intends to emphasize the utility of separable evaluations of the Vegetation vigor and Vegetation Cover rate through an experiment with grasses. As a result of evaluating vegetation index using spectral reflectance, a separable evaluation of the vegetation vigor and cover has been found more useful.
Submerged Structure Surveying using Digital Image
Park Kyeong Sik ; Jung Sung Heuk ; An Jeong Ook ; Lee Jae Kee ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 401~408
Presently many constructions establish in underwater, but approaching to underwater constructions are difficult, for comparing with ground, underwater environment is different in media. Usually measurement methods for underwater constructions are using tapes, using depth gauges, using acoustic positioning systems. But, tapes are hard to measure the correct distance, for applying a right tension is not easy in underwater. Depth gauges have a weakness in settling, for it takes long time to do it. Acoustic positioning systems don't work well in confined spaces and cost a lot. Hence, the purpose of this study is, at first, to understand rays path in multimedia like water, glass and air. The second thing is to perform a camera calibration at the field to compare with the interior orientation parameter. And the third thing is to find out whether photogrammetry is applied for underwater object in using cube for accuracy examination. The last thing is to perform underwater photogrammetry about underwater object, which is pier model and riverbed. We came to the conclusion through this experiment that the applying underwater photogrammerty for underwater constructions and underwater ground is possible
Development of Remote Control Robot-ship for Measuring Water Depth
Choi, Byoung-Gil ; Cho, Kwang-Hee ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 409~417
This study is aimed to develop a remote control robot-ship system using wireless communication and DGPS, which it is an automatic system for measuring exact depth and bed topography of reservoir or dam. Robot-ship is equipped with GPS and echosounder, and it is controled remotely using wireless internet. Robot-ship is consist of frame, each module and control board. Control segment is consisted of a processing system for positioning data and remote control system. A wireless communication system is developed which can communicate interactively between robot-ship and control segment, and it is developed in two channel system of RF modem and wireless internet. The robot-ship could be used acquire economically and exactly the water depth and bed topography of reservoirs, dams, rivers and so on.
Coastline Change Detection Using CORONA Imagery
Kim Gi Hong ; Choi Seung Pil ; Yook Woon Soo ; Song Yeong Sun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 23, issue 4, 2005, Pages 419~426
Recently the interest in coast area has been increased in the view of management and usage of national territory. Rapid coastal development has caused directly or indirectly coastline changes which may make environmental problems or threaten the nearby residents' livelihood. CORONA was one of the US satellite reconnaissance programs, and it's imagery provides informations about past coastline with high resolution. In this study, we applied rigorous geo-referencing algorithm to CORONA imagery in order to generate the mosaic image of the East coast area of 1969 with 20m accuracy. This old era CORONA mosaic image was compared with SPOT image of 2005, and the coastline changes were analyzed. We were able to ascertain considerable erosion and accumulation in some parts of study area. erosion area which is calculated from imagery is
from Kosung to Kangnung. Results of coastline change detection can provide useful information for related studies.