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b1: Laplacian Edge Detector

The b1 algorithm is inspired by Petrick et al. [135,136], who used a Laplacian edge detector in order to find closed regions in an enhanced image of the mammogram. Similar to the a1 algorithm, the DWCE filter is applied as a enhancement process to highlight potential masses. Applying an edge detector makes it possible to select these regions.



Arnau Oliver 2008-06-17