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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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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 22, Issue 4 - Dec 2004
Volume 22, Issue 3 - Sep 2004
Volume 22, Issue 2 - Jun 2004
Volume 22, Issue 1 - Mar 2004
Selecting the target year
Tunnel Convergence and Crown Observation using Industrial Photogrammetry
Jung Sung Hyuk ; Lee Jae Kee ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 209~215
Together with the requirements of tunnels, its construction methods and technologies have been pretty much developed, but frequent accidents happened under the constructions are just one of important problems which should be improved. To detect the potential hazardous factors in or ahead of time, speedy and accurate observation are absolutely required, but currently surveying method using tapes, level and total station, has been generally taken in measuring of tunnel convergence and crown. The purpose of this study is, as using of industrial photogrammetry system which is supplying more accuracy and speedy in the measure of tunnel convergence and crown. From the result of this study, we have got up to 1/20,000 accuracy and totally 6 minutes, from picturing 5 sections by one person to data edition, has been taken except setting targets.
Study on the Improvement of the Positioning Accuracy for Inverted RTK Using FARA
Choi Byung Kygu ; Lim Sam Sung ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 217~223
In order to improve real-time positioning accuracy, a number of methods have been tested and one of those is the inverted RTK(Real-time kinematic) that gives a precise positioning by handling carrier phase measurements. For the inverted RTK positioning, it needs the L1 phase measurement at least for 1～2 minutes and the additional reference stations/communication system and a data processing server are required. The L1 code and carrier phase measurements for real-time application are used simultaneously and then Kalman filter is applied to estimate integer ambiguities. Double differenced integer ambiguities are resolved by utilizing the FARA(Fast Ambiguity Resolution Approach). In this paper, we propose the method to improve the positioning accuracy and performed the field tests for several baselines from DAEJ reference station in KAO(Korea Astronomy Observatory).
A Comparative Analysis on Parcel Boundaries between the Map and Ground
Jung Young Dong ; Choi Han Young ; Cho Kyoo Jang ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 225~232
The human history has progressed closely related to land. Mankind started land administration as a tool of governance to make land the object of imposing taxation as well as developing the land administration as a concept of securing property rights. People have drawn boundary lines on the ground to form a land parcel according to the usage and/or ownership. Furthermore, the land administration has been developed as a registering system of cadastral records fer the public announcement of fixed boundary instead of changeable ground boundary. Currently the citizens demand the provision of accurate and diverse information on the land which is assessed to has high property value encouraged by the rapid development in the post-industrial society today. However, even though the fact that the Korean cadastral registers produced during the Land Investigation Project are still practically in use causes land-related disputes and promotes public mistrust because of the changed boundaries by parcel mutation, the expansion and contraction of map sheets and the quality deterioration and damage of map paper, but the ultimate resolution is not yet made so far. The distance difference between boundary points are compared and analyzed using TS surveying method in the research as a methodology to resolve the boundary inconsistency, the current problem of cadastral records. Consequently, I'd say that the new surveying method of registering the coordinates of real ground boundary has been regarded as more efficient than considering the matter on the map regardless of urban or rural areas.
The Discontinuity Information Extraction of Rock Slope using the 3D Digital Image
Um Dae Yong ; Lee Sung Soon ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 233~244
Recently, digital image is increasing greatly practical use degree in several industry fields including construction. And interest about 3D digital image that can express practical object realistically is augmented greatly. In this study, developed 3D digital image generation system based on digital photogrammetry and created 3D digital image fer object. And, wished to verify of 3D digital image through comparative analysis with processing result by digital photogrammetry system been using much the latest for acquisition of 3D information. Also, wished to apply to surface information acquisition about rock slope and execute investigation about discontinuity of joint etc. As the result, could created 3D digital image fur object using the 3D digital image generation system developing in this study, and acquire surface information about rock slope efficiently.
A Selection of Building Registration Method to Construct the Three Dimensional Information Cadastral Map
Yang In Tae ; Oh Yi Kyun ; Yu Young Geol ; Chun Gi Sun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 245~251
Recently, in a field of cadastre, a computerization of cadastral map is in progress with great growth of GSIS field. Also, the needs fer the integration of land and building information are widely increasing for integral-management and its application of various land related information. Through a revision of cadastral laws to replace the existing 2D-Cadastre with the 3D-Cadastre, a legal basis to register the position of buildings and facilities is prepared in the governmental or civil fields. This paper presented 3D-Cadastre theory that has been studied on Europe and surveyed building position directly with Totalstation at cadastral control point after choosing pilot test area, Also, the most efficient surveying method of registering building in a cadastral map is presented with comparing and analyzing building position after surveying digital orthophoto and digital map. And it is constructed a 3D information cadastral map model that can make the integral management of land, building, connecting land recorders, building management ledgers, building titles, building pictures, and related attribute information.
Confidence Improvement of Serial Cadastral Map Edit Using Ortho Image
Kim Kam Lae ; Ra Yong Hwa ; Ahn Byung Gu ; Park Se Jin ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 253~259
The sheetwise cadastral map data needs to become a Serial Cadastral Map (SCM) database for the promotion of the reliability of cadastral surveying, for the efficient operation of the Parcel Based Land Information System, and for the convenient use of land information as well. A large amount of money and time are required for the editing process of producing SCM DB in accordance with the
Guideline for the Production of Serial Cadastral Maps
by the Ministry of Construction & Transportation if any of field surveying techniques is accompanied by. In addition, a boundary line that extends to a neat line does not meet the counterpart of the neighboring map sheet at a point. Such cases frequently occur and are much dependent upon the decisions of individuals in charge of editing or inspecting. The core processes of the research, firstly overlay SCM produced by the edition of the sheetwise cadastral maps with Autodesk Map on orthophoto images, secondly adjust the parcel boundaries which are delineated over more than one map sheet, and lastly compare the original boundary coordinates and areas with the corresponding adjusted ones and calculate root mean square errors (RMSEs). The research aims at promoting the quality of SCM by minimizing the inconsistency of parcel boundaries by means of the comparative analysis of the calculated RMSEs.
Comparative Analysis between Normalized Burn Ration and Normalized Difference Vegetation Index in Forest Fire Damage Area
Choi Seung Pil ; Park Jong Sun ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 261~268
Analysis on forest through satellite image data can be obtained from normalized burn ration (NBR) and normalized difference vegetation index (NDVI) from descriptive information of reflection on the earth's surface recorded each waveband. This study focuses on the efficiency of NBR through comparative analysis after obtaining NBR and NDVI of images form 1 you, 2 years and just after the forest fire and the time of forest-preserved of the area before the forest fire in Sacheon myeon, Cangneung City where the forest fro broke out. As a result, it shows dynamic changes with greater range that differences between NBR images rather than differences between NDVI images, which means it would be better to use NBR image for the analysis of the degrees of damages from forest fire or the status of vegetation restoration and also NBR image more distinctly shows both than NDVI image in forest fro damage area.
Prioritizing the Building Order of the Geographic Framework Data
Choi Yun-Soo ; Jun Chul-Min ; Kim Gun-Soo ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 269~275
Geographic data have widely been applied in different areas including landuse, city planning and management, environment, disaster management and even daily use of citizens. Since geographic data have been built individually using different methods, many problems such as data inconsistency, duplicated investment, and confusion in decision making have arisen. Thus, the necessity of national framework database that can be shared by different areas has increased. As a result, eight fields of the framework database were defined by NGIS Law and 19 detailed items were selected. This study used the AHP (Analytical Hierarchy Process) and the decision tree to evaluate the relative importance of the items (eg. roads, railroads, coastline, surveying control points, and etc.) and presented the groups classified according to the priorities of the items. The result of this study is believed to contribute to effective budget planning for building national framework database.
A Study on Large Scale Digital Mapping Using High Resolution Satellite Stereo Images
Sung Chun Kyoung ; Yun Hong Sic ; Cho Jae Myoung ; Cho Jung Ho ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 277~284
The subject of this study is to apply experimentally In resolution stereo imagery of IKONOS to producing 1:50,000 scale maps for Munsan area in Paju, being near the Military Demarcation Line, is inaccessible for aerial photography. Ground control points were acquired from GPS surveying to perform geometric corrections on images. Digital maps were produced from IKONOS stereo imagery on the digital photographic workstation. From field investigation, RMS errors of the plane and vertical positions are estimated respectively at
1.231m, respectively. These plane and vertical accuracies are within the tolerance limits of those provided in the NGIS Digital Topographic Map Production Rules. Therefore this suggested method is recommended for producing the large scale digital maps of 'No flight' zone near the M.D.L.
Block Adjustment with GPS/INS in Aerial Photogrammetry
Park Woon Yong ; Lee Kang Won ; Lee Jae One ; Jeong Gong Uhn ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 285~291
GPS photogrammetry or the GPS/INS photogrammetry, which are based on the direct measurement of the projection centers and attitude at the moment of camera exposure time through loading the GPS receiver or INS in aircraft. Both photogrammetric methods can offer us to acquire the exterior orientation parameters with only minimum ground control points, even the ground control process could be completely skipped. Consequently, we can drastically reduce the time and cost for the mapping process. In this thesis, test flight was conducted in Suwon area to evaluate the performance of accuracy and efficiency through the analysis of results among the three photogrammetric methods, that is, traditional photogrammetry, GPS photogrammetry and GPS/INS photogrammetry. Test results shows that a large variety of advantages of GPS photogrammetry and GPS/INS photogrammetry against traditional photogrammetry is to be verified. Especially, the number of ground control points for the exterior orientation could be saved more than 70～80%, respectively.
Correlation Analysis of Land Used Pattern and Air Pollution Using GIS
Choi Byoung Gil ; Kim Ki Bum ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 293~301
This study analyzes the interrelationship with air pollution quality and land used patterns, and analyzes the history and optimal allocation of TMS using GIS. Seasonal air pollution map are maded of TMS data in study area, and land used patterns based on Land Cover Classification Map are reclassified as residential area, commercial area, industrial area, traffic concentrated area, and non-Polluted area. Pollution sources can be identified through analyzing the correlation of air pollution and land used patterns by GIS spatial overlaying technique. Hence, the result shows that it coincides with the characteristics of conventional air pollution. Air pollution quality measured by TMS shows similar to that of its near stations or the same land used patterns, through the history and allocation analysis of TMS. Therefore, it is need to consider these characteristics in setting TMS positions in the future.
Boundary Detection using Adaptive Bayesian Approach to Image Segmentation
Kim Kee Tae ; Choi Yoon Su ; Kim Gi Hong ;
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, volume 22, issue 3, 2004, Pages 303~309
In this paper, an adaptive Bayesian approach to image segmentation was developed for boundary detection. Both image intensities and texture information were used for obtaining better quality of the image segmentation by using the C programming language. Fuzzy c-mean clustering was applied fer the conditional probability density function, and Gibbs random field model was used for the prior probability density function. To simply test the algorithm, a synthetic image (256
256) with a set of low gray values (50, 100, 150 and 200) was created and normalized between 0 and 1 n double precision. Results have been presented that demonstrate the effectiveness of the algorithm in segmenting the synthetic image, resulting in more than 99% accuracy when noise characteristics are correctly modeled. The algorithm was applied to the Antarctic mosaic that was generated using 1963 Declassified Intelligence Satellite Photographs. The accuracy of the resulting vector map was estimated about 300-m.