Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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Comparison of Digital Number Distribution Changes of Each Class according to Atmospheric Correction in LANDSAT-5 TM

LANDSAT-5 TM 영상의 대기보정에 따른 클래스별 화소값 분포 변화 비교

  • Jung, Tae-Woong (Department of Advanced Technology Fusion, Konkuk University) ;
  • Eo, Yang-Dam (Department of Advanced Technology Fusion, Konkuk University) ;
  • Jin, Tailie (Department of Advanced Technology Fusion, Konkuk University) ;
  • Lim, Sang-Boem (Department of Advanced Technology Fusion, Konkuk University) ;
  • Park, Doo-Youl (Chung-Ang Aerosurvey Co. Ltd.) ;
  • Park, Hwang-Soo (Department of Advanced Technology Fusion, Konkuk University) ;
  • Piao, Minghe (Department of Advanced Technology Fusion, Konkuk University) ;
  • Park, Wan-Yong (Agency for Defense Development)
  • 정태웅 (건국대학교 신기술융합학과) ;
  • 어양담 (건국대학교 신기술융합학과) ;
  • 김태렬 (건국대학교 신기술융합학과) ;
  • 임상범 (건국대학교 신기술융합학과) ;
  • 박두열 (중앙항업) ;
  • 박황수 (건국대학교 신기술융합학과) ;
  • 박명학 (건국대학교 신기술융합학과) ;
  • 박완용 (국방과학연구소)
  • Published : 2009.02.28
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Abstract

Due to increasing frequency of yellow dust, not to mention high rate of precipitation and cloud formation in summer season of Korea, atmospheric correction of satellite remote sensing is necessary. This research analyzes the effect of atmospheric correction has on imagery classification by comparing DN distribution before and after atmospheric correction. The image used in the research is LANDSAT-5 TM. As for atmospheric correction module, commercial product ATCOR, FLAASH as well as COST model released on the internet, were used. The result of experiment shows that class separability increased in building areas.

우리나라는 황사발생 빈도가 증가하고 특히 하절기에 강우 및 구름 발생이 잦아 위성원격탐사영상의 대기보정처리를 필요로 한다. 본 연구에서는 대기보정 전후의 클래스별 화소값 분포 변화를 비교하여 대기보정이 영상화소분류에 미치는 영향을 분석하였다. 실험에 사용된 영상은 LANDSAT-5 TM이고, 대기보정 모듈로는 상용 소프트웨어인 ATCOR, FLAASH와 인터넷에 공개된 COST 모델 3가지를 적용하였다. 실험 결과, 건물밀집 지역 영역에서 클래스 분리도가 향상되는 것으로 나타났다.

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References

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