Hybrid navigation parameter estimation from aerial image sequence

항공영상을 이용한 하이브리드 영상 항법 변수 추출

  • 심동규 (서강대학교 전자공학부) ;
  • 정상용 (서강대학교 전자공학부) ;
  • 이도형 (서강대학교 전자공학부) ;
  • 박래홍 (서강대학교 전자공학부) ;
  • 김린철 (한성대학교 정보전산학부) ;
  • 이상욱 (서울대학교 전기공학부전)
  • Published : 1998.02.01

Abstract

Thispapr proposes hybrid navigation parameter estimation using sequential aerial images. The proposed navigation parameter estimation system is composed of two parts: relative position estimation and absolute position estimation. the relative position estimation recursively computes the current velocity and absolute position estimation. The relative position estimation recursively computes the current velocity and position of an aircraft by accumulating navigation parameters extracted from two succesive aerial images. Simple accumulation of parameter values decreases reliability of the extracted parameters as an aircraft goes on navigating. therefore absolute position estimation is required to compensate for position error generated in the relative position step. The absolute position estimation algorithm combining image matching and digital elevation model(DEM) matching is presented. Computer simulation with real aerial image sequences shows the efficiency of the proposed hybrial algorithm.

Keywords