An efficient spatial domain technique for subpixel image registration

  • Authors:
  • Irene G. Karybali;Emmanouil Z. Psarakis;Kostas Berberidis;Georgios D. Evangelidis

  • Affiliations:
  • Department of Information and Communication Systems Engineering, University of the Aegean, 83200 Karlovassi-Samos, Greece;Department of Computer Engineering and Informatics, School of Engineering, University of Patras, 26500 Rio-Patras, Greece;Department of Computer Engineering and Informatics, School of Engineering, University of Patras, 26500 Rio-Patras, Greece;Department of Computer Engineering and Informatics, School of Engineering, University of Patras, 26500 Rio-Patras, Greece

  • Venue:
  • Image Communication
  • Year:
  • 2008

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Abstract

In this paper a new technique for performing image registration with subpixel accuracy is presented. The proposed technique, which is based on the maximization of the correlation coefficient function, does not require the reconstruction of the intensity values and provides a closed-form solution to the subpixel translation estimation problem. Moreover, an efficient iterative scheme is proposed, which reduces considerably the overall computational cost of the image registration problem. This scheme properly combined with the proposed similarity measure results in a fast spatial domain technique for subpixel image registration.