Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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New Simple Decomposition Technique for Polarimetric SAR Images

완전편파 SAR영상의 새로운 영상 분해 기법

  • Lee, Kyung-Yup (Department of Electronic Information and Communication Engineering, Hongik University) ;
  • Oh, Yi-Sok (Department of Electronic Information and Communication Engineering, Hongik University)
  • 이경엽 (홍익대학교 전자정보통신공학과) ;
  • 오이석 (홍익대학교 전자정보통신공학과)
  • Published : 2010.02.28
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Abstract

This paper proposes a new decomposition technique for polarimetric synthetic aperture radar (SAR) images. This new decomposition technique is based on the degree of polarization (DoP) and co-polarized phase-difference (CPD) of the measured polarimetric backscattering coefficients. This decomposition technique is compared with the existing three- and four-component decomposition techniques with the ALOS PALSAR full polarimetric L-band data acquired in 2009. It is shown that the new decomposition technique is better or comparable to the existing techniques for the study areas such as sea, bare soil, forest, and urban area.

이 논문은 편파화 정도(degree of polarization: DoP) 와 동일편파 위상차이(co-polarized phasedifference:CPD)를 이용하여 완전편파 SAR 영상을 분해하는 새로운 기법을 제안한다. 이 영상 분해 기법을 검증하기 위해 2009년에 춘천 지역에서 얻은 ALOS PALSAR 완전편파 L-밴드 영상데이터를 이용하여 이 새로운 영상 분해 기법의 결과와 기존의 3-성분 분해방법과 4-성분 분해방법의 결과들과 비교한다. ALOS PALSAR 영상 자료의 바다, 맨땅, 산림 그리고 도심지역을 선정하여 새로운 DoP-CPD 영상 분해기법을 적용한 결과, 제안된 영상 분해 기법의 정확도가 기존의 분해기법보다 높거나 유사함을 보인다.

Keywords

References

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