• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.31-33
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• 2004

Two receiving systems were established at the Asian Center for Research on Remote Sensing (ACRoRS) to receive remote sensing data from NOAA AVHRR and Terra/Aqua MODIS sensors in October 1997 and May 2001, respectively. The data, which has been received in the research center, are very important to support and promote the remote sensing research activities for global environmental issues in Asia. Since the day of the establishment, many research and applications, which used these data, have been conducted. The data sets have been provided to researchers and users in many countries in the region to conduct research, to strengthen the research collaboration and education.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1377-1379
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• 2003

Satellite and aerial remote sensing (RS) techniques have been provided to collect spatial data globally over the last few decades. However in developing countries such as China, there is still an urgent need for low cost and high resolution RS data. As an emerging RS platform, commercial Unmanned Aerial Vehicle (UAV) integrated with state-of-the-art sensors and information technologies has the potential to become a low cost tool to meet application demands. In this paper, the architecture of UAV RS operation system is mentioned. Moreover, key technologies in UAV RS system are analyzed and current work is reported.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 춘계종합학술대회
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• pp.329-332
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• 2002

본 연구에서는 해양과 수산 분야에 대한 GIS(Geographic Information System)와 RS(Remote Sensing)의 팔용에 대해 살펴보았다. GIS와 RS는 선진 과학 기술로서 중요한 역할을 하고, 지구 과학의 여러 분야에서 연구의 강력한 도구로 활용되고 있다. GIS와 RS는 해양과 수산에 관련된 다양한 현상을 관측하고 예측하기 위한 수단으로 크게 이용될 것이다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1268-1271
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• 2003

In the edge detection of RS image, the useful detail losing and the spurious edge often appear. To solve the problem, we use the dyadic wavelet to detect the edge of surface features by combining the edge detecting with the multi-resolution analyzing of the wavelet transform. Via the dyadic wavelet decomposing, we obtain the RS image of a certain appropriate scale, and figure out the edge data of the plane and the upright directions respectively, then work out the grads vector module of the surface features, at last by tracing them we get the edge data of the object therefore build the RS image which obtains the checked edge. This method can depress the effect of noise and examine exactly the edge data of the object by rule and line. With an experiment of a RS image which obtains an airport, we certificate the feasibility of the application of dyadic wavelet in the object edge detection.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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• pp.280.2-286
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• 1998

Flood is the main natural disaster mostly in the world. It is a care problem to prevent flood disaster generally. The frequency of flood disaster is high and the distributing field is wide, the 50 percent population and 70 percent properties distribute at the threaten field of flood disaster in China. Flood disaster has caused a huge amount of economical losses and these losses have an increasing trend. Along with the development of reducing natural disaster action, it has become one of the most attentive problems for monitoring flood, preventing flood and forecasting flood efficiently. Remote sensing has the characteristics of large spatial observing areas, wide spectrum ranges, and imaging far away from the targets, imaging capabilities all weather. Spatial remote sensing information, which records the full, processes of the disaster's occurrence and development in real-time. It is a scientific basis for management, planning and decision-making. Through systemic analyzing the RS monitoring theory, based on compounding RS information, the technology and method of monitoring flood disaster are studied.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 춘계종합학술대회
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• pp.737-739
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• 2003

RS 및 GIS 기술을 수산 및 해양과학분야에 실제로 어떻게 활용할 수 있는가를 제시하고 이 분야의 전문가들에게 관련 정보를 제공하는 데 있다. 앞으로 RS 및 GIS 기술은 수산 및 해양분야의 자연재해와 관련되는 여러 가지 현상들을 조사, 감시 그리고 예견하고 수산자원 및 해양환경의 관리와 보존에 활용되어 아주 유용하게 이용될 것이다.

• 한국정보통신학회논문지
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• 제7권5호
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• pp.1068-1075
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• 2003

오늘날 위성원격탐사와 지리정보시스템은 첨단과학기술분야에 중요한 역할을 담당하고 있으며 여러 가지 다양한 지구과학분야들을 연구 및 조사하는데 이용되는 매우 유용한 도구가 되었다. 그러나 이러한 RS 및 GIS 기술은 대체적으로 육상에만 국한하여 활용되어져 온 것이 현실이다. 따라서 여기서는 RS 및 GIS 기술을 수산 및 해양과학분야에 실제로 어떻게 활용할 수 있는가를 제시하고 이 분야의 전문가들에게 관련 정보를 제공하는데 있다. 앞으로 RS 및 GIS 기술은 수산 및 해양분야의 자연재해와 관련되는 여러 가지 현상들을 조사, 감시 그리고 예견하고 수산자원 및 해양환경의 관리와 보존에 활용되어 아주 유용하게 이용될 것이다.

• 대한원격탐사학회지
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• 제16권3호
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• pp.243-260
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• 2000

가시광 영역에서 해수의 원격반사($R_{rs}$)도 및 수출광(water leaving radiance: Lw) 스펙트럼 크기를 해수의 광 특성(흡광도; a, 역산란; $b_b$)에 영향을 가장 크게 미치는 3개 물질 즉, 클로로필, 무기성 부유입자, 용해유기물의 량으로 모델링 하였다. 모델은 간략하게 $R_{rs}$=0.046 $b_b$/(a+$b_b$)로 주어졌으며, 모델의 대상 해역은 광특성이 전혀 다른 적조 발생해역, 맑은 해수, 탁수해역으로 나우어 연구하였다. 모델로 얻어진 원격반사도는 형장 관측치와 스펙트럼의 모양, 값의 분포 및 기존의 해색 클로로필 알고리즘 등으로 비교하여 모델의 타당성을 검증하였다. 결과는 아주 다양한 광 특성을 같은 해양이라 하여도 본 연구의 모델은 거의 완벽하게 해색 스펙트럼, 원격반사도 혹은 water leaving radiance(Lw)를 재현할 수 있는 것으로 나타났다. 본 모델은 앞으로 OSMI와 같은 해색위성 알고리즘 개발, CASE-II water 알고리즘, neural network 알고리즘 개발에 크게 기여할 것으로 사료되며 그 외에도 해색 대기보정 모델 개발에서 대기 신호의 정밀 보정에 활용될 수 있을 것으로 기대된다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.49-52
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• 2007

This study uses empirical method to estimate absorption coefficient of colored dissolved organic matter $(a_{dom})$ from GOCI satellite data with the relationship between band ratio of remote sensing reflectance $(R_{rs})$ and $a_{dom}$. For development of $a_{dom}$ estimation algorithm, the used data is in-situ data about ocean optical properties in the around seawater area of the Korean Peninsula during 1998 - 2005. The relationship of $R_{rs}$(412)/$R_{rs}$(555), $R_{rs}$(443)/$R_{rs}$(555), $R_{rs}$(490)/$R_{rs}$(555), $R_{rs}$(510)/$R_{rs}$(555) and $a_{dom}$(412) showed $R^2$ values of 0.707, 0.707, 0.597 and 0.552, respectively. The spectrum of $a_{dom}({\lambda})$ is shape of exponential function $a_{dom}({\lambda})$ value decreases with increasing wavelength. For estimation of $a_{dom}$ from satellite data, we developed an algorithm from the relationship of $a_{dom}$(412) and $R_{rs}$(412)/$R_{rs}$(555). This algorithm was employed on SeaWiFS imagery to estimate $R_{rs}$(412) in the South Sea, East Sea, Yellow Sea and northern East China Sea areas. Also, SeaDAS-derived $a_{dg}$(412) from same SeaWiFS imagery, These $a_{dg}$(412) was then compared with in-situ and empirical-algorithm-derived $a_{dom}$(412), but these values were different. We think two points that such different values are caused by discrepancy related to failure of standard atmospheric correction scheme, the other are caused by error related to definition of $a_{dom}$(412) and $a_{dg}$(412).

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1301-1303
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• 2003

Tarim River is the biggest inland river in China, its problem of eco-environment is worsening in the lower reach. For keeping this trend within limits, the measure of emergent water transportation to the lower reach was taken. In this paper, the remote sensing technology will be applied to the analysis of eco-environment effect after water transportation. The result is: the vegetation index and cover ratio increased but not markedly, the eco-environment situation can't been improved obviously up to now. It is some effective but temporary . The continuity, quality and quality of water source for the Tarim River must been ensured.