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Efficient image registration with subpixel accuracy

Abstract : The contribution of this paper is twofold. First, a new spatial domain image registration technique with subpixel accuracy is presented. This technique is based on a double maximization of the correlation coefficient and provides a closed-form solu- tion to the subpixel translation estimation problem. Second, an efficient iterative scheme for integer registration is proposed, which reduces significantly the number of searches, as com- pared to the exhaustive search. This scheme can be used as a pre-processing step in the sub-pixel accuracy technique, lead- ing to lower computational complexity. Extensive simulation results have shown that the performance of the proposed tech- nique compares very favorably with respect to existing ones.
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https://hal.inria.fr/hal-00865121
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  • HAL Id : hal-00865121, version 1

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Irene Karybali, Emmanouil Psarakis, Kostas Berberidis, Georgios Evangelidis. Efficient image registration with subpixel accuracy. 14th European Signal Processing Conference (EUSIPCO), Sep 2006, Florence, Italy. ⟨hal-00865121⟩

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