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Construction and Data Analysis of Test-bed by Hyperspectral Airborne Remote Sensing

초분광 항공원격탐사 테스트베드 구축 및 시험자료 획득

  • Chang, Anjin (Department of Civil & Environmental Engineering, Seoul National University) ;
  • Kim, Yongil (Department of Civil & Environmental Engineering, Seoul National University) ;
  • Choi, Seokkeun (School of Civil Engineering, Chungbuk National University) ;
  • Han, Dongyeob (Department of Marine and Civil Engineering, Chonnam National University) ;
  • Choi, Jaewan (School of Civil Engineering, Chungbuk National University) ;
  • Kim, Yongmin (Department of Civil & Environmental Engineering, Seoul National University) ;
  • Han, Youkyung (Department of Civil & Environmental Engineering, Seoul National University) ;
  • Park, Honglyun (School of Civil Engineering, Chungbuk National University) ;
  • Wang, Biao (School of Civil Engineering, Chungbuk National University) ;
  • Lim, Heechang (School of Civil Engineering, Chungbuk National University)
  • 장안진 (서울대학교 건설환경공학부) ;
  • 김용일 (서울대학교 건설환경공학부) ;
  • 최석근 (충북대학교 토목공학부) ;
  • 한동엽 (전남대학교 해양토목공학과) ;
  • 최재완 (충북대학교 토목공학부) ;
  • 김용민 (서울대학교 건설환경공학부) ;
  • 한유경 (서울대학교 건설환경공학부) ;
  • 박홍련 (충북대학교 토목공학부) ;
  • 왕표 (충북대학교 토목공학부) ;
  • 임희창 (충북대학교 토목공학부)
  • Received : 2013.02.28
  • Accepted : 2013.04.16
  • Published : 2013.04.30

Abstract

The construction of hyperspectral test-bed dataset is essential for the effective performance of hyperspectral image for various applications. In this study, we analyzed the technical points for generating of optimal hyperspectral test-bed site for hyperspectral sensors and the efficiency of hyperspectral test-bed site. In this regard regions we analyzed existing construction techniques for generating test-bed site in domestic and foreign, and designed the test-bed site to acquire images from the airborne hyperspectral sensor. To produce a reference data from the image of constructed test-bed site, this study applied vicarious correction as a pre-processing and analyzed its efficiency. The result presented that it was ideal to use tarp for the vicarious correction, but it is possible to use the materials with constant spectral reflectance or with relatively low variance of spectral reflectance. The test-bed data taken in this study can be employed as the reference of domestic and foreign studies for hyperspectral image processing.

분광 영상의 효과적인 테스트베드 구축은 초분광 영상의 다양한 활용을 위하여 선행되어야한다. 본 연구에서는 다양한 연구 분야에 적용할 수 있는 테스트베드의 구축 방법 및 효용성에 대한 기초 연구를 수행하였다. 이를 위하여, 기존의 국내 외 테스트베드 생성 방법을 분석하고, 이를 바탕으로 하여 항공기 기반 초분광 센서의 촬영을 위한 테스트베드를 설계하였다. 구축된 테스트베드를 촬영한 영상에서 기준자료를 생성시키기 위하여, 본 연구에서는 대리보정에 의한 전처리 기법을 적용하고, 이에 대한 효용성을 분석하였다. 실험결과, 대리보정은 타프를 이용하는 것이 가장 이상적이지만, 상황에 따라서 분광반사율이 일정하거나, 변화폭이 상대적으로 적은 물질을 이용하는 것이 가능하다는 것을 확인하였다. 본 연구에서 촬영한 테스트베드 자료는 국내 외의 초분광 영상 처리 연구에 참조자료로 사용될 수 있을 것으로 사료된다.

Keywords

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