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Fig. 5 | BMC Medical Imaging

Fig. 5

From: Statistical Permutation-based Artery Mapping (SPAM): a novel approach to evaluate imaging signals in the vessel wall

Fig. 5

This figure highlights the function of cluster-enhancement on an artificial example signal. An exemplary point is marked in all of the panels. Panel a demonstrates that only locally connected regions directly under the given point contribute to the enhancement. Unconnected local maxima are ignored. Panel b shows a two-dimensional sample function expressed as a three-dimensional topological surface before and after cluster-enhancement is applied. The enhanced map is not only dependent on the original signal intensity, but also on the amount of surrounding pixels that show a similar signal intensity. This enhances local maxima in larger connected clusters of pixels

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BMC Medical Imaging

ISSN: 1471-2342

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