• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.04a
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• pp.521-525
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• 2004

우리나라는 지난 반세기 동안 6ㆍ25전쟁과 무분별한 국토의 개발로 인하여 문화재가 많이 파괴되고 유실되는 피해를 입어왔다. 한번 손실된 문화재는 기존 데이터 없이는 완전복구가 어려운 실정이지만, 이러한 문화재의 복원을 위해서 오늘날 아직도 일제시대의 지적도를 아무런 검증 없이 사용하고 있는 것이 현실이다. 또, 일제시대 지적측량의 기술상의 착오, 지적도면의 신축에 따른 오차를 무시하고 고분의 복원작업에 그대로 사용하고 있다. 따라서, 본 연구에서는 TS를 이용하여 일제시대의 지적도와 현재의 현황측량을 바탕으로, 일제시대의 지적도가 오늘날에 와서 고분들을 복원할 때 얼마나 이용가치가 있는지 판단 할 수 있는 토대를 만들기 위함이고, 또 과거와 현재의 자료를 비교 분석함으로써 역사적 사실을 알 수 있는 기초 자료기반을 구축하는데 있다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.1
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• pp.31-37
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• 2007

Since the government-owned land is the national property, the country is responsible for the management. Although one can see the recent activities of government to efficiently manage and maintain the government-owned land, its characteristics are not well reflected on the current managing methods. Obviously, efficient and prefer methods for the field survey is necessary for efficient management. In this study, the current management methods focused on the site srvey are analyzed and problems are deduced. Basically the current methods depending on the graphic information and cadastral survey results are compared with real illegal occupancy case. The investigation clearly shows the necessity of the cadastral survey and proved the current method is not sufficient to detect illegal occupancy on government-owned land. It is expected that this study contributes on establishing an efficient management methods for the government-owned land.

• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.395-400
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• 2007

본 연구의 목적은 측량성과의 체계적 품질관리, 측량성과 관리업무의 효율성 향상 및 비용절감을 위하여 측량성과의 전자납품 및 품질검사의 자동화 방안을 연구하는데 있다. 이를 위하여 측량성과의 품질관리 현황 및 작업규정을 분석하고, 측량성과의 전자납품 및 품질검사 자동화를 위한 기본방안을 제시하였다. 측량 성과품의 유형을 품질검사의 자동화 측면에 구분을 해보면, 첫째, 품질검사의 자동화가 불가능한 유형, 둘째, 포맷분석과 소프트웨어 개발을 통하여 자동화된 품질 검사가 가능한 유형, 셋째, 제도적인 보완을 통하여 자동화가 가능한 성과품 유형 등 세 가지 종류로 분류가 가능하다. 이러한 측량성과품의 품질검사업무의 자동화는 크게 단기간에 미시적으로 해야 할 사안들과 중 장기에 걸쳐 거시적으로 추진해야할 사안 등 두 가지 측면의 시각으로 접근해야 하며, 업무적인 측면, 제도적인 측면 및 정보기술적인 측면에서 종합적으로 검토되어야 할 것으로 판단된다.

• 한국공간정보시스템학회:학술대회논문집
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• 1999.06a
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• pp.217-228
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• 1999

최근 범국가적인 GIS구축사업을 위한 효율적인 지형공간정보취득기법에 대한 요구가 날로 증가하고 있다. 이는 HW, SW 및 데이터로 구성되는 GIS구축에서 지형자료가 차지하는 비중과 이의 취득에 필요한 노력이 매우 중요함을 반증하고 있다. 이에 부응하여 국내에서도 재래식측량기법의 자동화/현대화에서부터 GPS측량기술의 도입, Airborne-항공사진측량기법의 개발 및 고해상도위성영상의 활용방안에 이르기까지 새로운 측량기술에 대한 다양한 연구와 기술축적을 서두르고 있는 실정이다. 그러나 위의 어떠한 측량기법도 단독으로는 정확도, 신속성, 경제성, 현재성 등 GIS 자료취득의 모든 요구조건을 만족하는 Total Solution이 되지 못하고 있다. 따라서 본 연구에서는 매핑과 GIS-자료취득에 활용되고 있는 여러 가지 항공측량기술의 현황과 장단점을 살펴보았다. 또한 위성에 의한 위치결정시스템인 GPS와 관성항행장치인 INS를 결합하여 항공측량 분야에 필요한 센서의 위치와 회전각을 결정하므로서 시너지(Synergy)효과를 높이는 기법을 소개한다.

• Journal of Korean Society for Geospatial Information Science
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• v.10 no.1 s.19
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• pp.77-82
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• 2002

This study try to attempt to manage on-line system of land cadastral by computing land registration information, for application to computerized cadastral work through Geo-Spatial Information System. And also, in order to consult D/B of cadastral information, cadastral non-coincidence area uncapable to D/B when land-survey, taking advantage of GSIS drawing made by the present condition drawing and the aerial photograph survey by general survey, makes actual cadastral control point by some selected investigators. And so, it can be compared and analysed by the result of the present survey and, through the interpretation of the relatives, it aims to improve the precision of survey technique in consulting cadastral information D/B in the future.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.9 no.2
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• pp.57-66
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• 1991

This study aims to study the present situation of our national surveying system, in fields such as professional surveyor system, the surveying industry, the consultancy pricing system. The problems are identified to present an improvement plan for the system. The professional surveyor system was compared to other systems in the Asia Zone and the surveying industry related laws and regulations, were compared with those of foreign countries as well as with the regulations of the architectural industry. The improvements suggested include upgrading of surveying technology and of surveying personnel, increase investment into education and research and development. The government should support in policy upgrading such as providing aids to small scale companies and in distributing the concentrated activities in the capital city to other regional areas. Also the pricing for the surveying activities and consulting activities should he adjusted in fields such as price items, grades of surveyors and overhead costs.

• Journal of the Korean GEO-environmental Society
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• v.22 no.2
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• pp.35-39
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• 2021

Photogrammetry using drone can produce high-resolution ortho image and acquire high-accuracy 3D information, which is useful. Therefore, this study attempted to determine the possibility of using drone-photogrammetry in park construction by producing a topographic map using drone-photogrammetry and analyzing the problems and accuracy generated during production. For this purpose, we created ortho image and DSM (digital surface model) using drone images and created topographic status map by vectorizing them. Accuracy was compared based on topographic status map by GPS (global positioning system) and TS (total station). The resulting of analyzing mean of the residuals at check points showed that 0.044 m in plane and 0.066 m in elevation, satisfying the tolerance range of 1/1,000 numerical maps, and result of compared lake size showed a difference of about 4.4%. On the other hand, it was difficult to obtain accurate height values for terrain in which existed vegetation when producing the topographic map, and in the case of underground buried objects, it is not possible to confirm it in the image, so direct spatial information acquisition was necessary. Therefore, it is judged that the topographic status map using drone photogrammetry can be efficiently constructed if direct spatial data acquisition is achieved for some terrain.

• JOURNAL OF ELECTRICAL WORLD
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• s.339
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• pp.23-46
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• 2005

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.31 no.1
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• pp.79-87
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• 2013

This study proposed a method to analyze the economic benefit of the national map revision program using the replacement cost method. The replacement cost method measures the benefit of a project as the minimum cost to replace functions of the project with those of alternative goods or services in an existing market. Thus, the demands on 1/5,000 topographic map revision in 18 administrative tasks such as city and district management planning were surveyed in three local autonomous entities. Then the cost to alternatively fulfill the demands was estimated with the standard construction estimating system for the field surveying and surveying results in commercial GIS companies for the site investigation. With this cost estimation model, the benefit of the current national map revision program to the local autonomous entities was estimated as 265,960,999 won. And cost benefit ratios according to several revision frequencies from 0.5 to 4 year were also compared to find the optimal frequency.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2003.10a
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• pp.43-48
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• 2003

This study presents the detailed methods for university facilities mapping using GPS and totalstation. In the control survey by GPS network adjustment, the level of significance for the height value of fourth order triangulation stations was estimated about loom. The accuracy analysis of height determination by totalstation for the traverse points showed that the RMSE came out 9mm to the basis of direct leveling, so it indicated that trigonometric leveling by totalstation was correct comparatively. For GPS/RTK method, the result of accuracy analysis about traverse points showed that the RMSE came out 33㎜ in horizontal location to the basis of totalstation's outcome and 15㎜ in height value to the basis of direct leveling. In the construction survey, GPS/RTK surveying is quicker and more economical than totalstation surveying in the feasible areas of GPS surveying, but there were many impossible areas lot GPS/RTK surveying by the obstacles like a building.