“Fusion Method for IKONOS Imagery Using Steepest Decent Method”

Yasutake Kurita, Jun Ichi Kudoh

Research output: Contribution to journalArticlepeer-review


The image data of multispectral (MS) of 4 m resolution and panchromatic (PAN) of 1 m resolution can be obtained from IKONOS. The fused MS images of 1 m resolution can be obtained by applying the fusion process to the MS images and PAN image. When an existing image fusion process is applied to the IKONOS image, the distortion of the spectrum is appeared. This is because of not being reflected in 1 m MS images to obtain the reflection of spectral response between the band of MS and the band of PAN by fusion process. To solve this problem, we proposed an image fusion algorithm using steepest decent method in this paper. Our method has been succeeded to improve correlation coefficients between the original 4 m MS image and the fused MS image which present degree of spectral distortion.

Original languageEnglish
Pages (from-to)102-109
Number of pages8
JournalJournal of the Institute of Image Electronics Engineers of Japan
Issue number2
Publication statusPublished - 2006 Jan


  • Image fusion
  • Spectral response
  • Steepest decent method

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering


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