13 March 2003 Image registration
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This paper gives an overview of image registration algorithms and presents a new algorithm, which can be used to register images of the same or different modalities. In particular, a correlation-based scheme is used, but instead of grey values it correlates numbers formulated by different combinations of the extracted local Walsh coefficients of the images.
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Maria Petrou, Maria Petrou, George Lazaridis, George Lazaridis, "Image registration", Proc. SPIE 4885, Image and Signal Processing for Remote Sensing VIII, (13 March 2003); doi: 10.1117/12.463523; https://doi.org/10.1117/12.463523

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