• 제목/요약/키워드: Sensing and Application

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리모트센싱과 GIS의 통합 및 그 적용기법에 관한 연구 (A Study on the Application Technique and Integration of Remote Sensing and Geographic Information System)

  • 안철호;연상호
    • 한국측량학회지
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    • 제9권1호
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    • pp.97-107
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    • 1991
  • 본 연구에서는 리모트센싱과 GIS의 장점을 살려 하나의 시스템에서 여러 기능을 복합적으로 이용하기 위한 리모트센싱과 GIS의 통합을 시도한 것이다. 래스터와 벡터 데이타의 동시 통합 출력을 위한 중복 알고리즘을 개발하였으며, 리모트센싱과 GIS의 통합결과를 시험적용하기 위하여 인공위성 화상 데이타와 지형도 벡터 그래픽 데이타를 정확하게 통합시켰다. 실제 적용에서는 리모트센싱과 GIS의 주요 적용분야의 주제별 적용에 대한 데이타 모집과 중복 그리고 좌표계 변환을 통하여 대상지역에 다각적으로 적용할 수 있는 기법을 시도함으로써 벡터와 래스터의 중복의 효용성을 입증하고 복합적인 현안분석을 통해서 리모트센싱과 GIS의 복합적용을 위한 새로운 적용 기법을 제시하였다.

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SAR Remote Sensing Technology Development and Application in China

  • Jing, Li
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.448-453
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    • 2002
  • Remote sensing technology is one of the most powerful tools for human to know the nature and their living environment. However, before microwave remote sensing was developed and applied, remote sensing application was limited strongly by weather and time. Microwave remote sensing technology solves the problem. It makes us to have the capability to acquire information at all time of the day and under all weather condition, and make remote sensing technology be used in more wider area. Microwave remote sensing system include mainly Synthetic Aperture Radar (SAR), Microwave Radiometer, Microwave Scatterometer, and Altimeter (ALT). As SAR can acquire image whose spatial resolution is similar with visible and infrared image, it is paying much attention to and playing a more and more important role in earth observation. In recent year, the development of new SAR technology (multi-band and multi-polarization technology, InSAR technology, D-InSAR technology, and so on) makes SAR remote sensing go to an new stage, and its application area become more and more widely. The first Synthetic Aperture Radar (SAR) in the world appeared in 1960. After that, SAR and its application all developed very fast. Some radar satellites launched and run (include Seasat-A in 1978, ERS-1 in 1991, JERS-1 in 1992, Radarsat in 1995, and so on) promote SAR research and application in world greatly. China began to develop its SAR sensor and research SAR application in 1970s. After more than 30 years' research, it get some important development in sensor development data processing method, and application. Some operational systems have been used and play an important role. This paper will introduce the development of SAR technology and its application in China.

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Flood Monitoring and Assessment by Remote Sensing and GIS in China

  • Jiren, Li;Silong, Zhang;Sun, Chun-Peng
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.175-182
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    • 2002
  • The paper introduces the application of flood monitoring and assessment by remote sensing and GIS in china and describes the frame of operational system for practical performance of flood disaster mitigation. In addition, The operational system for flood monitoring and assessment in RSTAC/ MWR and its application in the floods of 1998,1999 in china are introduced.

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Evaluation of Geo-based Image Fusion on Mobile Cloud Environment using Histogram Similarity Analysis

  • Lee, Kiwon;Kang, Sanggoo
    • 대한원격탐사학회지
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    • 제31권1호
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    • pp.1-9
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    • 2015
  • Mobility and cloud platform have become the dominant paradigm to develop web services dealing with huge and diverse digital contents for scientific solution or engineering application. These two trends are technically combined into mobile cloud computing environment taking beneficial points from each. The intention of this study is to design and implement a mobile cloud application for remotely sensed image fusion for the further practical geo-based mobile services. In this implementation, the system architecture consists of two parts: mobile web client and cloud application server. Mobile web client is for user interface regarding image fusion application processing and image visualization and for mobile web service of data listing and browsing. Cloud application server works on OpenStack, open source cloud platform. In this part, three server instances are generated as web server instance, tiling server instance, and fusion server instance. With metadata browsing of the processing data, image fusion by Bayesian approach is performed using functions within Orfeo Toolbox (OTB), open source remote sensing library. In addition, similarity of fused images with respect to input image set is estimated by histogram distance metrics. This result can be used as the reference criterion for user parameter choice on Bayesian image fusion. It is thought that the implementation strategy for mobile cloud application based on full open sources provides good points for a mobile service supporting specific remote sensing functions, besides image fusion schemes, by user demands to expand remote sensing application fields.

Crew`s Remote Sensing Researches on the International Space Station

  • Lee Joo-Hee;Choi Gi-Hyuk;Kim Yeon-Kyu;Kim Jong-Woo
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.386-388
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    • 2004
  • The International Space Station (ISS) offers research opportunities to researchers through crew's space mission in the field of remote sensing. ISS provides the facilities to place and operate experiment equipments in a variety of fields, especially, microgravity experiments and Earth observations. This paper is intended to give readers a brief introduction to the ISS utilization and the capabilities for remote sensing researches. We investigate what kind of crew missions and payloads should be developed for remote sensing researches on the ISS.

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The Application of Digital Watermarking in Remote Sensing Image

  • Jin, Peidong;Qin, Xuwen
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.1264-1267
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    • 2003
  • To protect the digital image, video and audio from non-authorized use, the digital watermarking technology has received a great attention in the field of multimedia in recent years . An overview of the development of watermark techniques is given in the current paper followed by a discussion of potential application of spatial domain, transform domain watermark techniques in remote sensing images copyright protection and verification in different forms of processed images.

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ITO Extended Gate Reduced Graphene Oxide Field Effect Transistor For Proton Sensing Application

  • Truong, Thuy Kieu;Nguyen, T.N.T.;Trung, Tran Quang;Son, Il Yung;Kim, Duck Jin;Jung, Jin Heak;Lee, N.E.
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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    • pp.653-653
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    • 2013
  • In this study, ITO extended gate reduced graphene oxide field effect transistor (rGO FET) was demonstrated as a transducer for a proton sensing application. In this structure, the sensing area is isolated from the active area of the device. Therefore, it is easy to deposit or modify the sensing area without affecting on the device performance. In this case, the ITO extended gate was used as a gate electrode as well as a proton sensing material. The proton sensing properties based on the rGO FET transducer were analyzed. The rGO FET device showed a high stability in the air ambient with a TTC encapsulation layer for months. The device showed an ambipolar characteristic with the Dirac point shift with varying the pH solutions. The sensing characteristics have offered the potential for the ion sensing application.

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An initial study on ecological environment changes after emergent water transportation at lower reaches of Tarim River, China based on remote sensing technique

  • Jianli, Zhang;Lin, Li;Longjiang, Du
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.313-315
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    • 2003
  • Tarim River is the longest continental river in China. Its downstream ecological environment declination and valley remedy got great concern. To improve ecological environment of lower Tarim River, “Emergent water transportation project for Tarim river valley remedy” was carried out from May 2000. Water was transported five times till May 2003. Several periods MODIS image was used to monitor water body in river channel. Two periods ETM image was used to interpreter changes of environment. Area of vegetation in 1999 was similar with 2001, but become better in total. The normalized difference vegetation index (NDVI) and vegetative coverage reflected environment changed better.

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인공위성 원격탐사 정보의 활용 (Application of Spaceborne Earth Remote Sensing Information)

  • 가민호
    • 대한원격탐사학회지
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    • 제16권3호
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    • pp.261-279
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    • 2000
  • 오늘날 저궤도 및 정지궤도 인공위성에 탑재하여 운용되고있는 원격탐사 장비는 관련기술의 급속한 발전에 힘입어 현재 그 수요가 계속 증가하고있는 추세이다. 2000년까지 약 15개 국가에서 위성탑재 원격탐사 시스템 보유계획을 갖고있으며 운용되는 인공위성이 수십개에 이를것으로 예상된다. 국내에서도 우주개발 계획에따라 탐사위성이 계속 발사될 예정이며 응용분야또한 광범위하여 파급효과 또한 클것이다. 원격탐사 정보를 사회 제반 분야에 효과적으로 응용한다는 것은 잠정적 수요자가 지구 원격탐사시스템의 정보, 임무 및 동작특성과 접한다는 것을 의미하나 현재 국내상황으로볼 때 이와관련된 내용들이 더 보충되어야할 필요성이 있는 것이 사실이다. 이를위하여 본 총설에서는 현재 운용되고있거나 계획도어있는 미국, 러시아 및 기타국가의 지구원격탐사 시스템의 정보 활용에 대하여 살펴보려하며 내용의 범위는 대중적 정보수요가 있는 응용분야, 임무 및 시스템으로 국한하였다. 아울러 본 총설의 많은 부분은 참고문헌을 편술한 내용을 참고로 하였음을 밝혀둔다.