[Neuroimaging] Dipy question

張 嘉玲 j9988t at hotmail.com
Wed Mar 30 04:49:35 EDT 2016

I want to ask a question about Dipy.

There is a parameter "a_low" within EuDX algorithm.
"Towards an Accurate Brain Tractography" chapter 3 mentions that
Athr defines the lowest possible peak value that allows tracking to continue.
 I set this threshold as 0.2(typical for tensor), but some FA values are lower than 0.2 in the FA distribution (within  the track volume).
My question: 
The threshold is a "smooth" threshold in the algorithm or not?

thanks for help

Chia-Ling Chang, Master student
Medical Imaging Processing Laboratory
National Cheng Kung University
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