[ITK-users] region growing with adaptative Threshold

[Sunshine]

HI,

I'm trying to segment the airways from 3D Ct image using this algorithm 
 1- determine the seed point and the intial threshold
 2- calculte the average intensity of voxels already classified to the
region (A)
 3- if the intensity  of the voxel  and  all closest (connected) neighbours
= (+/-) 0,05 A(step 2). voxel is classified to the region.

As explained, the threshold depends on the processed data, is their any
example in which the threshold is not defined as a constante like in the
region growing examples?

Best regards
SAmah

 



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