An optimization algorithm based on Bi-SIFT for SAR image registration

Liu Fuqiang, Bi Fukun*, Chen Liang, Wei Hang, Tie Wenjie

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

Registration is an effective pre-processing for amounts of applications like image mosaic, mapping, remote detection, and change detection. The scale-invariant feature transform (SIFT) and block matching are two widely algorithms for registration in computer vision. However, as a result of speckle noises, the two algorithms perform unsatisfactorily on synthetic aperture radar (SAR) images. In this paper, we introduce an algorithm, which is named Bi-SIFT optimization algorithm, combing SIFT in two different scales and optimization model in block matching. Bi-SIFT ensures enough correct matching pairs rather than avoiding mismatching-pairs, which is used in traditional ways, to make it more effective. We illustrate the improvement brought by Bi-SIFT by both qualitative analysis and comparing test. Besides, we present serious registration applications of Bi-SIFT.

Original languageEnglish
Publication statusPublished - 2015
EventIET International Radar Conference 2015 - Hangzhou, China
Duration: 14 Oct 201516 Oct 2015

Conference

ConferenceIET International Radar Conference 2015
Country/TerritoryChina
CityHangzhou
Period14/10/1516/10/15

Keywords

  • Optimization model
  • SAR image registration
  • Scale-invariant feature transform (SIFT)
  • Synthetic aperture radar (SAR)

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