[Neuroimaging] [DIPY] Question about whole tracks *.trk registration using SLR

[Perea Camargo, Rodrigo Dennis]

Hi Eleftherios & DIPY community,
I am trying to register two whole brain tracts as shown in your recent publication using the streamline-based linear registration. I am diving into Dipy now and I might have some problems loading the files or registering them.
Following your example ( http://nipy.org/dipy/examples_built/bundle_registration.html#example-bundle-registration), there are 2 issues that may arise when I try it.

1) How to load *.trk files is not shown in your example (it looks like you added to cingulum bundles from your dataset using the dipy.data value…) So I follow this tutorial (http://nipy.org/dipy/examples_built/streamline_formats.html ) to load the streamline and hdr but I am not sure if this is the format SLF() wants it in.

2) So then I try using the srr.optimize( ) function but I get the following problems (check below).

I hope you can help me.
Rodrigo


Here is my Jupyter notebook with the errors I found (any help will be greatly appreciate it):

[cid:E8007168-CC60-44C2-98D4-377B91D1A9D9 at mgh.harvard.edu]






The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/neuroimaging/attachments/20170920/f322037b/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PastedGraphic-1.png
Type: image/png
Size: 195056 bytes
Desc: PastedGraphic-1.png
URL: <http://mail.python.org/pipermail/neuroimaging/attachments/20170920/f322037b/attachment-0001.png>