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Tooth segmentation from dental computed tomography (CT) images with metal artifacts is challenging as metal artifacts make some of the crown boundaries unrecognizable. This letter proposes a semiautomatic method for crown segmentation from CT images with metal artifacts. A user manually selects a starting slice and initializes this slice. Then crown contours are segmented automatically from volumetric...
We discuss image reconstruction and segmentation in an improved watershed algorithm by using a plug-in function in flooding process. This extends the watershed transform for segmentation by allowing the integration of a priori information about image objects into flooding simulation processes. This method can customize the initial seeding, region growing and stopping rules of the watershed flooding...
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