Error importing .nii file?

Questions about BrainVisa usage and installation

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francois
Posts: 63
Joined: Tue Jul 25, 2017 9:37 am

Error importing .nii file?

Post by francois »

Hello,

What's wrong with this volume: https://www.dropbox.com/s/pph7iqff08rwf ... i.zip?dl=0 ?
It was sent to me by developers at Yokogawa/Ricoh (Japanese MEG manufacturer)...
in Import T1 MRI 2 The following command failed : "AimsFileConvert" "-i" "c:\users\franc\appdata\local\temp\tmpbiwup9.nii" "-o" "C:\Work\RawData\brainvisa_db\subjects\Ricoh01\t1mri\default_acquisition\Ricoh01.nii.gz" "-t" "S16" "-r" "--omin" "0" "--omax" "4095"
ImportationError
Thanks
Francois
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riviere
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Re: Error importing .nii file?

Post by riviere »

Hi,

There is a problem in the handling of some temporary files actually on Windows, we have already found and fixed it in our sources, but haven't got time to release the fixed version yet.
In your case I thing the problem is triggered by the fact that your image is considered as float voxel values where they are expected to be 16 bit ints (what they are actually), so an additional conversion is done, which runs into this temp file problem.
You can try "fixing" this manually by forcing the data type manually, using this command:

Code: Select all

AimsFileConvert -i F:\RawData\0Formats\Data\Ricoh\Example2\2_PatientMEGData\NIfTI\Anatomy.nii -o F:\RawData\0Formats\Data\Ricoh\Example2\2_PatientMEGData\NIfTI\Anatomy.nii -t S16
Only the scale factors will change actually (but you can write the output in a different place if you are afraid of overwriting the input image), then try again, it might work this time.

We will release a fix when we can... (please be patient...)

Denis
francois
Posts: 63
Joined: Tue Jul 25, 2017 9:37 am

Re: Error importing .nii file?

Post by francois »

Ok thanks.
And it works with the WSL version too :)
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