[Camino-users] voxel size

[u.ferizi at cs.ucl.ac.uk]

Hello Claire,

When you synthesise the data, you also specify the radius (R) and inter-cylinder separation (S),  via e.g.:
-cylinderrad 1.5E-6 -cylindersep 4E-6
R should not be greater than S (and I suppose you've worked it's connection with volume fraction to be S=R sqrt(2pi/(f sqrt3))).

I hope this answers somehow your question.
Uran
PS: If you've not specified the radius/separation, and you want to know what the default values are, then I will try to find them --- but I hope it is clear that you can specify the geometry to your liking.
________________________________
From: camino-users-bounces at www.nitrc.org [camino-users-bounces at www.nitrc.org] on behalf of ClaireMarie Barnes [cmbarnes at live.co.uk]
Sent: 07 October 2012 4:47 PM
To: camino-users
Subject: [Camino-users] voxel size

Hi there,

I was wondering if anyone could help me; I have been simulating data using camino however, I have been asked to use a model to calculate FA and compare with the values given by camino. As part of the equation I need to find the extracellular volume fraction. I have used hexagonal cylinder packing and so am able to work out the the volume of the cylinders but I'm not sure of the dimensions used for a voxel by the -datasynth option in camino can anyone help

Many thanks
Claire :)
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