Subspace extension to phase correlation approach for fast image registration

Ren, Jinchang and Vlachos, T. and Jiang, J.; (2007) Subspace extension to phase correlation approach for fast image registration. In: 2007 IEEE International conference on image processing, Volumes 1-7. IEEE International Conference on Image Processing (ICIP) . IEEE, USA, pp. 481-484. ISBN 9781424414369

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Abstract

A novel extension of phase correlation to subspace correlation is proposed, in which 2-D translation is decomposed into two I-D motions thus only 1-D Fourier transform is used to estimate the corresponding motion. In each subspace, the first two highest peaks from I-D correlation are linearly interpolated for subpixel accuracy. Experimental results have shown both the robustness and accuracy of our method.