Image Fusion for Improving Classification

  • Lee, Dong-Cheon (Dept. of Geoinformation Engineering / Research Institute of Geoinformatics & Geophysics, Sejong University) ;
  • Kim, Jeong-Woo (Dept. of Geoinformation Engineering / Research Institute of Geoinformatics & Geophysics, Sejong University) ;
  • Kwon, Jay-Hyoun (Dept. of Geoinformation Engineering / Research Institute of Geoinformatics & Geophysics, Sejong University) ;
  • Kim, Chung (Dept. of Geoinformation Engineering / Research Institute of Geoinformatics & Geophysics, Sejong University) ;
  • Park, Ki-Surk (Geospatial Information Technology)
  • Published : 2003.11.03

Abstract

classification of the satellite images provides information about land cover and/or land use. Quality of the classification result depends mainly on the spatial and spectral resolutions of the images. In this study, image fusion in terms of resolution merging, and band integration with multi-source of the satellite images; Landsat ETM+ and Ikonos were carried out to improve classification. Resolution merging and band integration could generate imagery of high resolution with more spectral bands. Precise image co-registration is required to remove geometric distortion between different sources of images. Combination of unsupervised and supervised classification of the fused imagery was implemented to improve classification. 3D display of the results was possible by combining DEM with the classification result so that interpretability could be improved.

Keywords