Registration of Multispectral Satellite Images with Orientation-Restricted SIFT

Vural M. F., Yardimci Y., Temizel A.

IEEE International Geoscience and Remote Sensing Symposium, Cape-Town, Güney Afrika, 12 - 17 Temmuz 2009, ss.1545-1548 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/igarss.2009.5417801
  • Basıldığı Şehir: Cape-Town
  • Basıldığı Ülke: Güney Afrika
  • Sayfa Sayıları: ss.1545-1548
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, a modified version of the popular SIFT algorithm is introduced. The algorithm is robust to nonlinear intensity changes between images which makes it a strong candidate for multispectral image registration. The proposed Orientation Restricted SIFT algorithm combines the SIFT descriptor vector elements in opposite directions In this way, better feature matching performance is achieved with shorter descriptor vectors which translate into shorter matching complexity The effect of scale restriction and contrast stretching is demonstrated on multispectral satellite images and scale restriction is found to be useful in eliminating incorrectly matched features.