• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.126-129
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• 2006

The marine environment is under considerable threat from intentional or accidental oil spills, ballast water discharged, dredging and infilling for coastal development, and uncontrolled sewage and industrial wastewater discharges. Monitoring spills and illegal oil discharges is an important component in ensuring compliance with marine protection legislation and general protection of the coastal environments. For the monitoring task an image processing system is needed that can efficiently perform the detection and the tracking of oil spills and in this direction a significant amount of research work has taken place mainly with the use of radar (SAR) remote sensing data. In this paper the level set image segmentation technique was tested for the detection of oil spills. Level set allow the evolving curve to change topology (break and merge) and therefore boundaries of particularly intricate shapes can be extracted. Experimental results demonstrated that the level set segmentation can be used for the efficient detection and monitoring of oil spills, since the method coped with abrupt shape’s deformations and splits.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.610-614
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• 2006

In this paper the advanced method of geodesic active contours was developed for the task of building detection from aerial and satellite images. Automatic extraction of man-made structures including buildings, building blocks or roads from remote sensing data is useful for land use mapping, scene understanding, robotic navigation, image retrieval, surveillance, emergency management procedures, cadastral etc. A level set method based on a region-driven segmentation model was implemented with which building boundaries were detected, through this curve propagation technique. The essence of this approach is to optimize the position and the geometric form of the curve by measuring information along that curve, and within the regions that compose the image partition. To this end, one can consider uniform intensities inside objects and the background. Thus, given an initial position of the curve, one can determine global, region-driven functions and provide a statistical description of the inside and outside object area. The calculus of variations and a gradient descent method was used to optimize the variational functional by an iterative steady state process. Experimental results demonstrate the potential of the proposed processing scheme.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 추계학술발표회 논문집
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• pp.435-440
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• 2004

In this study, it is aimed to construct a remote home doctor system utilizing GIS technique. Remote home doctor system consists of three major compartments ; full-duplex communication system, visible communication system, and data backup system. On this system, a company request home doctor is connected with environment specialists and pollution control equipment company. The database in this system consists of spatial data and attribute data. Spatial data are made by topographic data and company location data. Attribute data consists in document data, status of company, products, amount of raw material used, odor discharge process, pollution discharge information and prevention equipments.

• 한국측량학회지
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• 제26권5호
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• pp.475-483
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• 2008

본 연구의 목적은 국내 측량관련 전문학회의 학회지, 석 박사 학위논문을 대상으로 하여 논문분야별, 연도별 분석을 통하여 측량분야의 연구동향을 파악하는데 있다. 본 연구에서는1957년 이후 현재까지의 국내에서 발표된 측량관련 전문학술지 발표논문, 석 박사 학위논문을 취합 정리하였다. 연구 동향을 연도별과 분야별로 그 현황을 분석하였으며 각 연구 분야에 사이의 상관관계를 분석한 결과 원격탐사 분야와 GIS 분야가 매우 높은(약 98%) 상관관계를 가지고 있었으며, 그 다음으로는 GPS와 원격탐사 분야가 높은(약 95%) 상관관계를 가지고 있음을 알 수 있었다. 각 논문분야의 발표연도변화에 따른 회귀분석 결과 측지분야를 제외하면 대부분 추세선이 대부분 3차식에 유의함을 알 수 있었다. 또한, 일반측량, 사진측량, 원격탐사, 토지정보 분야의 논문은 증가하는 것으로 예상되며, GPS, GIS, 수치지도, 측지분야는 감소하는 것으로 예상됨을 알 수 있었다.

• 한국측량학회지
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• 제14권2호
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• pp.219-228
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• 1996

본 연구에서는 국내에서 발표된 측량관련 논문과 저서의 제목을 조사하고 정리하여 기구축된 논문-저서 제목의 목록을 최신화하였으며, 이 논문-저서 제목 목록의 관리와 효율적인 검색을 위하여 목록 데이터베이스를 구축하고 그에 따른 측량관련 논문 전문 검색 프로그램을 개발하였다. 현재까지 우리나라에서 발표된 측량관련 논문-저서는 총 971편이며 분야별로는 일반측량 206편, 사진측량 218편, 원격탐사 183편, 측지 및 GPS 127편 그리고 수치지형 및 GIS 237편이다. 측량관련 논문 전문 검색 프로그램은 윈도우즈 환경에서 운용될 수 있도록 Visual Basic 3.0 for Windows 3.1을 사용하여 개발하였으며, 구조적 질의어(SQL:Structured Query Language)를 이용하여 자료검색을 할 수 있도록 하였다.

• 한국측량학회지
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• 제13권1호
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• pp.85-94
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• 1995

국토개발에 관한 각종정보, 도시환경 및 토지이용정보, 농수산자원 조사, 지질조사, 수종의 분류, 나무의 생육상태등의 많은 정보를 수집하고 추출하는데 원격탐사는 중요한 일익을 담당하고 있다. 본 연구는 원격탐사를 수행하는데 영상처리 자료의 위치 정확도를 향상시키기 위하여 실시하는 기하학적 보정을 하는데 있어 지도를 이용하는 방법과 GPS를 이용하는 방법을 서로 비교하여 보다 정확한 인공위성 영상의 좌표변환을 위한 것이다. 실제 지형지물에서 GCP를 획득할 때의 문제점과 어려운 점에 대하여 개선방안을 찾으려고 하였으며, 향후 전국적인 인공위성영상 접합을 위한 좌표계에 대한 고려를 고찰해 보았다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.165-169
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• 2004

Recently remote sensing technology is applied for construction projects planning and design areas by use of high resolution satellite images according to engineering application technology in the various experimental tasks. In this study, It was applied for optimum route selection methods and basic design by comparing to present railway and new expand dual railway route on the new construction plan path of 20km at national railway lines, and then showed 3-dimensional images and fly simulation images to possibility for various application as low cost and short time compare to airplane and helicopters survey methods. As a results of its applied, It gained the results not only improvement of present methods but also real various application possibilities.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2007년도 춘계학술발표회 논문집
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• pp.183-186
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• 2007

Hyperspectral remote sensing data contain plenty of information about objects, which makes object classification more precise. Over the past several years, different algorithms for the classification of hyperspectral remote sensing images have been developed. In this study, we proposed method based on absorption band extraction and Gravity type model to solve hyperspectral image classification problem. In contrast to conventional methods that are based on correlation techniques, this method is simple and more effective. The proposed approach was tested to evaluate its effectiveness. The evaluation was done by comparing the results of preexiting SFF(Spectral Feature Fitting) classification method. The evaluation results showed the proposed approach has a good potential in the classification of hyperspectral images.

• 제어로봇시스템학회논문지
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• 제9권11호
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• pp.891-898
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• 2003

Unmanned remote survey system is proposed to measure distance and angle of the present position of micro-tunneling machine from any starting point of entrance. Cross type linear LED that can be controlled remotely is attached to the tunneling machine. Range finder and angle measuring devise fixed to internal of the pipe can scan the center of LED. Distance and angle measuring devises are disposed in the measurable position of the pipe, then the present position of tunneling machine can be calculated automatically from the measurements.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2006년도 춘계학술발표회 논문집
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• pp.159-163
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• 2006

The domestic Remote Sensing field uses mainly Landsat TM image that is used to the monitoring of the wide area. In this study, it is analyzed the land cover change of rural and urban area by time series using satellite images and is proposed the vision for a urban balanced development. It execute an analysis for urban change which is a fundamental data of city planning through the integration of the spatial analysis technique of GIS and Remote Sensing using satellite data