Bayesian Formulation of Image Patch Matching Using Cross-correlation |
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Authors: | H?kan Ard? Kalle ?gstr?m |
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Affiliation: | 1. Centre for Mathematical Sciences, Lund University, Lund, Sweden
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Abstract: | A classical solution for matching two image patches is to use the cross-correlation coefficient. This works well if there
is a lot of structure within the patches, but not so well if the patches are close to uniform. This means that some patches
are matched with more confidence than others. By estimating this uncertainty, more weight can be put on the confident matches
than those that are more uncertain. To enable this two distribution functions for two different cases are used: (i) the correlation
between two patches showing the same object but with different lighting conditions and different noise realisations and (ii) the
correlation between two unrelated patches. |
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Keywords: | |
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