• 한국측량학회지
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• 제15권1호
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• pp.107-116
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• 1997

본 연구는 경계측량에서 평판측량과 트랜싯측량의 정확도 비교에 관한 연구이다. 현재 우리나라의 경계 측량에서 주로 사용하고 있는 평판측량은 인위적, 기계적 위치오차가 발생되어 민원의 여지가 있다 연구의 실행을 위하여 대상지역과 측점 및 측정점이 같은 곳에 위치하도록 실습장을 설치하고 토탈스테이션을 이용한 트랜싯측량과 평판측량으로 동일한 조건에서 측량하였다. 그 결과 평판측량에서 $\pm2~\pm20cm$, 트랜싯측량에서 $\pm0~\pm2cm$, 의 위치 오차가 발생되었다. 이와 같이 평판측량보다 트랜싯측량으로 경계측량을 실시하는 것이 훨씬 더 정확하다는 것을 알 수 있었다.

• 지적과 국토정보
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• 제44권2호
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• pp.1-23
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• 2014

한국은 지적측량에 의하여 설치되는 지상의 경계점을 효율적으로 관리하기 위하여 2013년 7월 17일 "측량 수료조사 및 지적에 관한 법률" 제65조를 신설하여 지상경계점등록부를 작성 관리하고 있다. 그러나 현재 이 제도는 작성시간의 과다한 소요와 활용성 미비로 제도 시행에 따른 부정적 인식이 확산되고 있다. 따라서 본 연구에서는 우리나라의 지상경계점등록부 운영과 관련한 문제점을 분석해 보고 선진 해외사례 조사와 국제 지적전문가의 인터뷰 등을 통하여 합리적인 개선방안을 제안하였으며 이를 통하여 우리나라의 지적측량에 대한 신뢰도가 보다 향상되기를 기대한다.

• 한국산업융합학회 논문집
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• 제25권6_2호
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• pp.969-977
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• 2022

Currently, in Korea, aerial photogrammetry is being studied for cadastral boundaries and numerical maps. Since the announced value of cadastral survey is closely related to ownership, the accuracy and reliability of the published value should be emphasized above all else. However, although aerial photogrammetry has great advantages in economic feasibility and surveying efficiency, it has many limitations when extracting the boundary of cadastral survey based on the acquired image. In order to improve these limitations, in this study, an aerial target was applied to obtain reliability improvement. Therefore, in order to examine the usefulness of aerial photogrammetry for cadastral survey application, cadastral boundary extraction and accuracy comparison analysis were conducted.

• 한국정보통신학회논문지
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• 제25권12호
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• pp.1942-1948
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• 2021

우리나라 토지공부는 일제 시대의 낙후된 기술로 정립되어 현재 국내 토지의 15%가 지적도와 맞지 않는다. 이에 정부는 '지적재조사 사업'이라는 이름 아래 우리나라 토지공부를 정립하고 측량 원점을 세계측지계로 변경 중에 있다. 지적재조사 사업이 끝난 후 우리나라 디지털 정보 서비스가 구축되어 디지털 지적정보가 제공될 때, 그 정보를 이용하여 손쉽게 측량할 수 있는 드론 경계 복원 측량 방법을 제안한다. Mobile GCS는 모바일 어플로 드론을 제어하고 토지공부에 기록된 경계점 좌표를 획득하여 드론이 자동 비행하여 경계점을 표시하도록 한다. 개발한 프로토타입 드론으로 6개 경계점을 2분 내로 순회하였다.

• 대한수학회보
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• 제48권4호
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• pp.791-812
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• 2011

This is a survey on American options. An American option allows its owner the privilege of early exercise, whereas a European option can be exercised only at expiration. Because of this early exercise privilege American option pricing involves an optimal stopping problem; the price of an American option is given as a free boundary value problem associated with a Black-Scholes type partial differential equation. Up until now there is no simple closed-form solution to the problem, but there have been a variety of approaches which contribute to the understanding of the properties of the price and the early exercise boundary. These approaches typically provide numerical or approximate analytic methods to find the price and the boundary. Topics included in this survey are early approaches(trees, finite difference schemes, and quasi-analytic methods), an analytic method of lines and randomization, a homotopy method, analytic approximation of early exercise boundaries, Monte Carlo methods, and relatively recent topics such as model uncertainty, backward stochastic differential equations, and real options. We also provide open problems whose answers are expected to contribute to American option pricing.

• Spatial Information Research
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• 제15권2호
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• pp.123-134
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• 2007

지적공부 등록요소의 확대와 3차원 지적정보체계 구축을 통한 국민의 안정적인 소유권 보호 등을 위해서는 지적도에 건물경계선의 등록이 필요하다. 본 연구에서는 타켓 TS 측량방법과 무타켓 TS 측량 방법의 정확도 및 효율성에 대한 비교를 통하여 무타켓 TS 측량에 의한 건물경계선 등록의 효율성을 제시하고자 하였다. 연구결과, 타켓 TS 측량과 무타켓 TS 측량성과의 RMS오차가 X좌표는 ${\pm}0.056m$, Y좌표는 ${\pm}0.043m$로 산출되어 무타켓 TS 측량성과의 높은 정확도를 확인할 수 있었다. 그리고 무타켓 TS 측량이 타켓 TS 측량에 비해 인원 및 관측시간 소요 면에서 효율적임을 알 수 있었다.

• 대한지리학회지
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• 제51권5호
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• pp.577-612
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• 2016

이 논문의 목적은 임진정계(1712) 경계표지물에 대한 역대 실지조사기록을 검토하여, 1712~1713년에 만들어진 경계표지물의 분포를 복원하는 것이다. 허량 박도상(1713), 김우식(1883), 이중하(1885), 오록정(1907), 오소네 세이지(1907), 유건봉(1908), 일제지형도(1933), 청진교원대학 백두산탐사대(1948), 길림성 장백산 여행단(1957)의 실지조사기록을 검토하였다. 이를 통하여, 1713년 최종 완성된 임진정계 경계표지물의 분포를 도표와 지도로 제시하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제26권2호
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• pp.43-62
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• 2017

Purpose This study provided empirical support for the model that explain the formation of privacy concerns in the perspective of Information Boundary Theory. This study investigated an integrated model suggesting that privacy concerns are formed by the individual's disposition to value privacy, privacy awareness, awareness of privacy policy, and government legislation. The Information Boundary Theory suggests that the boundaries of information space dependends on the individual's personal characteristics and environmental factors of e-commerce. When receiving a request for personal information from e-commerce websites, an individual assesses the risk depending on the risk-control assessment, the perception of intrusion give rise to privacy concerns. Design/methodology/approach This study empirically tested the hypotheses with the data collected in a survey that included the items measuring the constructs in the model. The survey was aimed at university students. and a causal modeling statistical technique(PLS) is used for data analysis in this research. Findings The results of the survey indicated significant relationships among environmental factors of e-commerce websites, individual's personal privacy characteristics and privacy concerns. Both individual's awareness of institutional privacy assurance on e-commerce and the privacy characteristics affect the risk-control assessment towards information disclosure, which becomes an essential components of privacy concerns.

• 자원환경지질
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• 제33권1호
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• pp.41-50
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• 2000

Geo-radar survey which has the advantage of high-resolution and relatively fast survey has been widely used for engineering and environmental problems. Three-dimensional effects have to be considered in the interpretation of geo-radar for high-resolution. However, there exists a trouble on the analysis of the three dimensional effects. To solve this problem an efficient three dimension numerical modeling algorithm is needed. Numerical radar modeling in three dimensional case requires large memory and long calculating time. In this paper, a finite difference method time domain solution to Maxwell's equations for simulating electromagnetic wave propagation in three dimensional media was developed to make economic algorithm which requires smaller memory and shorter calculating time. And in using boundary condition Liao absorption boundary. The numerical result of cross-hole radar survey for tunnel is compared with real data. The two results are well matched. To prove application to three dimensional analysis, the results with variation of tunnel's incident angle to survey cross-section and the result when the tunnel is parallel to the cross-section were examined. This algorithm is useful in various geo-radar survey and can give basic data to develop dat processing and inversion program.

• Korean Journal of Geomatics
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• 제3권1호
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• pp.73-79
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• 2003

To manage national territory and cadastral data efficiently, accuracy and cost-efficiency in cadastral boundary surveying is inevitable. The efficient management of cadastral data is a very important element in national land management. Survey techniques are being introduced. Recently, improvements in survey techniques have been made with the development of satellite surveying, Allowing accurate and fast surveys. If we can calculate the output accurately in real-time in survey fields, it will open a new method in cadastral detail surveying. According to the classification on Law of cadastral surveying, Cadastral surveying can be divided into cadastral control point surveying and cadastral detail surveying. The control point survey can be divided into cadastral triangulation surveying and cadastral traverse surveying. The detailed survey is usually perform by plane surveying. Among these, cadastral detail surveying will be reviewed in this study. In this study, the combination of the satellites, such as US managed GPS and Russian managed GLONASS was used. In the satellite survey in downtown, data interruption symptoms arose(according to the mask angle of the satellite). Therefore; we combined the satellites to get date more accurately. A block of Haewoondae New City in Busan, Korea, which has Numerical Cadastral Law was selected as the sample area for this study. Block II and III are surrounded by high rise apartments. One side of Block I and IV is level ground and the other side is full of high rise apartments. Especially, Block II is surrounded by high rise apartment houses with 20 meters width. In the results of the study Block II did not satisfy the allowable precision, while Block I, II and IV satisfied the allowable precision of the enforcement regulations of Cadastral Law. Therefore, it is judged that the traditionally used Total Station method should be used for supplementary survey on Block II, in stead.