Contributions to Colon Segmentation Without Previous Preparation in Computer Tomography Images

This explorer beam (EB) is a data structure to compute the information to decide how we can advance in the image

METHODOLOGY

• Iterative algorithm that uses the direction vector of the last iteration as a guide for advance (prediction). An EB is used to explore and evaluate the region (evaluation) in order to define a new direction vector (correction) and thus launch the local growing process. The stop criterion is the failure of the new direction vector search.

• Evaluating the Explorer Beam

• Correcting the Explorer Beam

• Stop Criterion

• Region Growing

Evaluating the Explorer Beam

• Evaluating the Explorer Beam

• The variance values associated to the vector voxels are in the valid range defined by the selected valid regions

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