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1/25,000 수치지도를 이용한 1/25,000 지형도 제작
최석근 ( Seok Keun Choi ),조의환 ( Ui Hwan Jo ) 충북대학교 건설기술연구소 2010 건설기술논문집 Vol.29 No.1
Recent, high-resolution digital aerial images and airborne LiDAR data, digital data acquisition and data processing is very fast With the rapid development of measurement techniques. Therefore, digital maps and topographic mapping has become easy and precise. This study, there are way to create digital maps by the technique of producing topographic maps used 0.25m digital aerial image and aerial LiDAR data. Among them, through the program automatically generates to create the topographic map, how to edit the 1:1 possibility of production were analyzed with 0.25m digital aerial imagery and airborne LiDAR data. The resulting predictive accuracy of 1/25,000 topographic was found in the satisfaction. and Topographic mapping could be used effectively.
최석근(Choi Seok-Keun),조의환(Jo Eui-Hwan),이승기(Lee Seung-Kee),이병용(Lee Byung-Yong) 대한공간정보학회 2010 한국지형공간정보학회 학술대회 Vol.2010 No.3
본 연구는 디지털 항공영상의 축소편집을 이용하여 제작한 1/25,000 수치지도를 이용하여 동 축척의 지형도를 제작하는 방안에 대하여 연구 수행하였다. 국가기본도제작은 전국을 권역으로 나누어 일정한 주기로 촬영하여 제작하고 있기 때문에 최신 자료제공 및 경제성 등에 많은 문제점을 나타내고 있다. 현재 국가에서는 고품질 디지털항공영상을 이용한 국가기본도 제작을 수행하고 있기 때문에, 이들 자료를 이용하여 지형도제작에 활용함으로써 지도정보의 최신성을 확보하고, 지도제작비용을 최소화할 수 있는 가능성을 분석하고자 한다. 이를 위해 수치지도 및 지형도의 지형ㆍ지물분류체계를 분석하였고, 지형도제작 공정에 따라 자료처리를 수행한 후 그 효용성을 분석하였다.
최석근(Choi Seok Keun),조의환(Jo Ui Hwan),이병용(Lee Byung Yong) 대한공간정보학회 2010 대한공간정보학회지 Vol.18 No.1
The latest multi-dimension spatial information technology is emerging its importance as material for carrying out efficient facilities management’s supporting business about numerous facilities inside a university, budgeting decision-making supporting business such as operating expenses’ budgeting and management, etc. and admission advertisement, etc. Accordingly, the present study selected an optimal location that can maximize spatial utilization of a building to be newly built by constructing multi-dimension spatial information for facilities management of a university, and executed a site suitability analysis according to transfer of a university symbol and a landscape analysis, etc. according to external environment change. As a result, it appeared that the effects such as prevention of duplicate investment and budget saving, etc. due to university’s comfortable spatial composition and systematic comprehensive development & budgeting or decision-making support in case of execution, etc. caused by rationalization of facilities plan & management can be maximized.
최석근(Choi Seok Keun),이교한(Yi Gyo Han),조의환(Jo Ui Hwan),이병용(Lee Byung Yong) 대한공간정보학회 2008 한국지형공간정보학회 학술대회 Vol.2008 No.10
현재의 조감도 제작방법은 3D-Max, 포토샵과 같은 그래픽 프로그램을 이용하여 편집하는 방법이 일반적이다. 이러한 조감도는 일반적으로 제작과정에서의 특성상 2차원 평면 데이터를 이용하여 모델링하지만 지표면의 3차원 공간데이터를 사용하지 않고 대상지역의 사진 등을 편집하여 사용하기 때문에 주변 시설물을 정확히 반영하지 못하는 문제점을 가지고 있다. 본 연구에서는 다차원데이터를 이용하여 LiDAR 데이터에서 획득한 고정밀의 DEM과 고품질의 항공영상을 이용한 3차원 모델을 제작하여 조망권, 가시권, 지형분석 등을 수행하고, 주변의 모든 대상물을 고려한 효율적인 조감도를 제작하는 것이 본 연구의 목적이다.
문용현(Moon, Yong Hyun),김명석(Kim, Myoung Suk),조의환(Jo, Eui Hwan),최석근(Choi, Seok Keun) 대한공간정보학회 2012 대한공간정보학회지 Vol.20 No.3
The construction of data connection is required due to the digital map do not have the new address data which is implemented by the Korea government and it cannot use between government and other agency. The manually matching of digital map and new address data is time and money consuming process due to the huge amount of data. In this research, new system is developed for data generation of attribute data by the data connection method of digital map and new address data using spatial matching and matching rate of data connection is analyses. The results of data matching rate in the research area are 84% in building case and 67% in road case in 1:1000 digital map at Suwon and 18% in building case and 21% in road at Seogwipo.
최석근(Choi Seok Keun),이승기(Lee Soung Ki),조의환(Jo Ui Hwan),박상전(Park Sang Jeon) 대한공간정보학회 2009 대한공간정보학회지 Vol.17 No.3
Field surveys for the digital map being constructed is being conducted using various work guide books based on the digital mapping internal rule. However, a modification of a rule used for paper map construction is being used for the digital mapping rule, which is causing many problems with the quality of the digital map. Therefore, to construct a high-quality digital map, general standards related to conducting field surveys need to be reviewed, and it's extremely important to construct an accurate digital map based on this. Accordingly, in this study, problems related to conducting field surveys for the construction of the digital map are analyzed in order to establish more suitable field survey standards for constructing an accurate digital map. To this end, work regulations related to construction of a digital map were analyzed, and attribute and field survey data were compared to those of a previously-constructed digital map for analysis. By reflecting opinions of field surveyors and related experts to the results of the analysis, more suitable field survey standards for constructing the digital map were presented.