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Current sulcal modeling techniques depend, more or less, on manual interpretation. We propose a robust voxel-coding methodology for automatic extraction and parameterization of the sulcal surfaces from volume data sets. The cortical sulci are generated in two steps: initial contour extraction and final contour generation. A voxel-coding technique based on the exterior boundary of the cerebral cortex extracts the initial contours. A similar voxel-coding technique generates the final contours. Results, and comparisons with manually derived surface models, demonstrate the potential of our methodology.
Skeleton, Deformable Model, Region Growing, Cortical Sulcus, Voxel-Coding

A. W. Toga, Y. Zhou and P. M. Thompson, "Extracting and Representing the Cortical Sulci," in IEEE Computer Graphics and Applications, vol. 19, no. , pp. 49-55, 1999.
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