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 15, Issue 2 - Dec 1997
Volume 15, Issue 1 - Jun 1997
Selecting the target year
Position Error Analysis of Digital Map for LIS/GIS Database
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 1~7
In the digital mapping for data base contruction, the positional information is used as an important tool in LIS/GIS(Land Information System/Geographic Information System) that is used for a facility management, urban/cadastral management as well as in spatial analysis. In this paper, for an error analysis of X, Y coordinates data on digital map, test area was classified by topography, density, and slope. The coordinates on topographic map were assumed as true values and they were compared with the coordinates on digital map. A result of the numerical test show that a vector data of line type had more gross error than vector data of polygon type. And, SME(stanadrd mean error) of urban or intermountain area had small values compared to that of suburban area in topography analysis. The SME of dense and middle zone had small values compared to that of loose zone in density analysis. In another slope analysis. the SME of steep of gentle slope had small values compared to that of flatland.
A Study on the Refraction Errors of Light in the Precise Leveling
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 9~20
The precise leveling is one of the important means of investigating fluctuation of earth's crust and foreknowing earthquake. This paper aims to study refraction errors developed in the inclined leveling route. Based on Kukkamaki's theory and data of weather, the author devised an experiment to test how Kukkimaki's corrections improved the discrepancy between fore and back sight leveling in actual slope. Additionally, through the repeated observation between fore and back sight leveling at one fixed station in the slope(2/100-4/100) and the experimental tests of continuous inclined leveling route, the author studied the effects and charcteristics of refraction. Especially, in inclined leveling(2/100-4/100), the distance of line of sight is ideally to be 25-30 m to minimize refraction errors. From the results of experimental tests of continuous inclined leveling route, the values of calculation by Kukkimaki's corrections were found to be nearly in accord with the values of observation.
A Study on the Management of Subway Structure as an Underground Facility
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 21~28
Since beginning of subway construction in 1974, for supplying the demand for increasing urban traffic and solving the traffic jam due to expansion of society and elevation of an individual income, the
construction have been almost done and
has been driving forward. However, according to an increment of com-mon usage with the passage of time, structures are superannuated and the amount of improvement and repairs keeps on increasing continuous. And many problems are taking place at underground space because of new constructions for underground facilities such as urban gas, electric power, waterworks, and sewerage. In consequence. The consideration of a counterplan for safety is required deeply This study analyzed problems on maintenance of structure about
class subway, and will present means that a manage civil structures scientifically and systematically by using GSIS concept that imported into several organizations for facility management recently as making digital graphic elements and historic data into a database rather than using an old method - documents and paper drawings.
National Datum Transformation Parameters of South Korea Using Weighted Parameter Constraints
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 29~39
The need of transformation parameters from local geodetic datums to a geocentric coordinate system is becoming more common, with the increasing application of satellite positioning techniques to LIS/GIS survey with cadastral management. In this paper, the national transformation parameters between the Korean geodetic coordinates which is based on the Bessel 1841 ellipsoid and the WGS84 ellipsoid are determined by the least square methods with weighted parameter constraints. Three-dimensional geocentric coordinates are based on GPS observation at 31 stations in the geodetic network, the datum parameters are computed within a standard deviation of less than 1 meter. In South Korea, the national transformation parameters with Bessel geoid-heights are useful for GPS baseline processing and for middle-scale map/database transformation.
Stereo Matching the Orientation Point Using the Method of Color Channel Separation
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 41~50
This study is aimed to suggest the method, color channel seperation, can match the common points in real-time automatically. Image coordinates which was calculated from the acquired image with CCDcamera in this study is checked with two methods; check the accuracy of image coordinate and common point matching through correct sort. In conclusion of check, The RMSE of object coordinate which is calculated by photogrammetry program with image coordinate is in the expect RMSE of close-range photogrammetry, and Match-ing of common point is also performed correctly by using sort. For these reason, this color channel separation method is adequate for the acquisition of accurate image coordinates and the matching of the common points. I think that this method will be useful for the fields of industry which need fast-correct processing with acquired information in real-time.
Tidal Computation of the Global Ocean using Fine-grid Numerical Model
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 51~61
A two-dimensional numerical tidal model with
resolution has been established to investigate the distribution of semidiurnal constituents
and diurnal constituents
of the global ocean. The
numerical model has been applied to the computation of detailed tidal distributions in the marginal seas and the shelf seas. Tidal characteristics in shallow areas could be hardly resolved with the existing global chart due to the low resolution. Computed tidal charts obtained by
numerical model have been compared with the existing global charts and the altimetry-derived tidal charts. Computed harmonic constants have also been com-pared with the pelagic tidal observations. The results obtained with fine-grid numerical model can be used to determine the time-independent sea surface topography by removing the tidal components from the altimetry-derived sea surface height.
Construction of Multimedia Information System to Guide Urban Information - at the city of Chin-ju -
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 63~73
The objective for the plan of informatization which the government earring out is the modernization of the in-formation service system to be diverse and speedy. With the increase in variety and volume of the available in-formation at the city now, it has become necessary to develop more efficient system of offering the various displays by using computer graphics and multimedia functions as well as storing and managing the information. The multimedia urban information system, which we developed, was designed to furnish various informations of the city to the citizens more efficiently by using Visual BASIC in the personal computer with inexpensive prior. The datas of text, voice, and dynamic images were integrated in this, system by multimedia tools. Also, the database was established to get the expert datas-traffic volume in peak hour, traffic accidents, and road information. as well as general urban informations.
Development of Underground Facilities Management System on Subway Construction
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 75~80
In other to construct a subway, we have to consider the position of the subway and acquisition of a topography, profile-map, cross-map, underground facilities map. All information of underground is demanded accurate location in other to prevent of accident of underground in subway construction. We must think about water lines, sewer lines, electronic lines, telephone lines, all urban gas-line because these are needed construction the subway. And attributes of underground facilities recorded on topography are characteristics. length, width. number, position, and depth of the lines. We have to record these attributes because these are very important to design map on subway construction. If we develop GIS (Geographic Information System) to use the exact in-formation of the underground facilities, we can be management safely and prevent very dangerous accident as fast as possible. In this study, attribute informations are linked geographic informations about underground facilities and we can develop Underground Facilities Management System(UFMS) to analysis dangerous region through dangerous degreed and predict accident range with these informations.
The Digital Model Generation for the Human Body Measurement
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 81~89
The size and shape of the human body has been an important factor not only in anthropology but in integration of designs aimed for daily use. Although the three-dimensional measurements have been proposed and obtained introducing new methods, there still remains many problems concerning how to analyze and evaluate the results. In this study, we have got the internal and external orientation factors, image coordinates from the ac-quired photographs, have calaulated the object coordinates through Bundle Adjustment, have matched multi-images. have drawn the object in the computer, and smoothly handled the surface of the body model using the Au-to-CAD system or graphic processing utility then we could generate the digital model of human body. The. results show that once digital modeling of the body is generated. the information which a designer needs can be acquired and the adequate calculations for many application fields can be done easily and many geometrical properties could be extracted. Therefore we propose the possibility of indirect human body measurement through digital model generation.
Deformation Measurement of Structures by Close - Range Photogrammetry - A Target for Tunnel Structures -
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 91~96
In order to ensure the safety of a structure, it is essential to put in practice all sorts of measurement from the plan and execution to the management by stages. These measurements make it possible to verify a propriety of a plan and forecast an accident or a collapse caused by long lapse of time, making use of accumulated data. Close-Range Photogrammetry is a method to meet improvement and development of surveting technique. which offered data for maintenance and management of a structure. Dus to applying this way. reliance on measuring a variation of structure. Besides, data of variation will be utilized for maintenance and management of a structure.
Graphic Information Acquisition of Architectures using Multi-Image System
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 97~105
In order to conserve architecture accurately as original feature, we need to get the data which is measured in detail about the information of size, position, type, shape, and other terms for architectures. Recently, we need to get data fast and correctly, to compose and to update the database of geographic information system, but using existing method. it is difficult to update the data effectively in the rapid development of information industry. In this study, therefore, It is measured precisely architecture using accurate close-range photogrammetry The aims of this study are real-measured plan by processing acquired image through multi-image matching method if photogrammetry, suggesting the method which is able to draw in detail front plane and plane of well-established architecture, and giving data to obtain accurate size and 3-D coordinate using analytical method.
A Study on Comparison of Accuracy Degree in Boundary Survey
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 107~116
This study is concerned about the comparison of accuracy between the plane table survey and the transit survey in the boundary survey. Up to the present, the plane table survey is used for the boundary survey in Korea the plane table survey usually causes both human and mechanical observational errors large enough. In this study, both the plane table survey and the transit survey using total station were used and the same points were measured from the same station. As the results, the positional error has 2~20 cm in plan table survey and 0~2 cm in the transit survey. Thus the transit survey is considerably accurate compared to the plane table survey in the boundary survey.
A Study on the Quality Assurance of National Basemap Digital Mapping Database
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 117~129
In recent years, the 1 : 5,000 scale Digital National Basemap(DNB) has been generated under National Geo-graphic Information System(NGIS) Project. The DNB database generated will be the backdrop data for thematic maps, underground facilities maps and so on. The DNB database will be distributed to the government and private sectors in near future so that it should meet the requirements as the basic data. In order to assure the quality of DNB database, the establishment of quality assurance process to database was in great need. In this study, we were mainly concerned with improving the quality of digital national basemap database in geomatric aspect as well as the processing time due to the amount of digital data generated. As a results of this study, the quality assuance process of DNB database is established and automatic quality assurance program is developed. Also, the program developed in this study is contributed to quality assurance of DNB database as well as economic aspects.
Geoidal Heights Analyses in and around Korean Peninsula using EGM96 and OSU91A Geopotential Model
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 15, issue 1, 1997, Pages 131~139
Geopotential models were used to determine the reference surface in geoid modelling and until now, OSU91A model has been most widely used in the world. But what so called EGM96, GSFC/DMA geopotential model published in the latter half of the 1996 by GSFC/DMA project. In this paper, we intended to compare the results of spherical harmonic analyses using the both geopotential model and the spherical harmonic analyses performed up to degree and order 300 and the gravimetric geoidal heights considering gravity data on each
grid point in and around Korean peninsula. The results showed that the average geoidal height of study area computed from EGM96 is larger 0.40 m than that computed from OSU91A and the gravimetric geoidal heights us-ing EGM96 is larger 0.35 m than that using OSU91A model.