Comparison of Land Use Change Detection Methods with Satellite Image

위성영상을 이용한 토지이용 변화 검색기법 비교연구

  • 박순호 (경북대학교) ;
  • 김우관 (경북대학교 사회과학대학 지리학과)
  • Published : 1999.06.30

Abstract

Five land use change detection methods were applied to 1994 and 1997 Landsat Thematic Mapper (TM) images of Pook-Gu, Taegu city to determine the land-cover changes between the two dates. The two images were coregistred to UTM coordinates. A post-classification comparison method was the most commonly used quantitative method of change detection. A pre-classification comparison method was more effective method to change detection of land cover than a post-classification comparison method. Two indices were used to assess the accuracies of the studied methods. A image differencing method was found to be most accurate for detecting change verse no change among five land use change detection methods. The difference image of band 2 was found to be most accurate. The overall accuracy and Kappa index agreement of the difference image of band 2 were 0.810 and 0.447.