Pansharpening of multispectral images using filtering in fourier domain

Alper Akoguz*, Burak Kurt, Sedef Kent Pinar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In this study, there is examined filtering based pansharpening methods which means of using several 2D FIR filters in Fourier domain which implies that the filters are applied after taking 2D Discrete Fourier Transform of both multispectral and panchromatic image and after the pansharpening process in Fourier domain, the resulting pansharpened image is obtained with an inverse 2D DFT. In addition, these methods are compared with commonly used fusion methods which are combined as modulation based and component substitution based methods. The algorithms are applied to SPOT 6 co-registered image couples that were acquired simultaneously. Couples are chosen for three different regions which are a city image (Gebze/Turkey), a forest image (Istanbul/Turkey) and an agriculture field image (Sanliurfa/Turkey) in order to analyse the methods in different regional characteristics. These methods are compared by the fusion quality assessments that have common acceptance in community. The results of these quality assessments shows the filtering based methods had the best scores among the traditional methods.

Original languageEnglish
Title of host publicationImage and Signal Processing for Remote Sensing XX
EditorsJon Atli Benediktsson, Francesca Bovolo, Lorenzo Bruzzone
PublisherSPIE
ISBN (Electronic)9781628413076
DOIs
Publication statusPublished - 2014
EventImage and Signal Processing for Remote Sensing XX - Amsterdam, Netherlands
Duration: 22 Sept 201424 Sept 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9244
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceImage and Signal Processing for Remote Sensing XX
Country/TerritoryNetherlands
CityAmsterdam
Period22/09/1424/09/14

Bibliographical note

Publisher Copyright:
© 2014 SPIE.

Keywords

  • 2D FIR filters
  • Image fusion
  • Pansharpening
  • Quality assessment
  • Remote sensing
  • SPOT

Fingerprint

Dive into the research topics of 'Pansharpening of multispectral images using filtering in fourier domain'. Together they form a unique fingerprint.

Cite this