Subspace Extension to Phase Correlation Approach for Fast Image Registration

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

• Type: Conference
• Year: 2007
• Where: ICIP
• Authors: Jinchang Ren, Theodore Vlachos, Jianmin Jiang
• Keywords: 1-D Correlation, 1-d Fourier Transform, 1-D Motions, ICIP 2007, Image Processing, Phase Correlation, Subpixel Accuracy