[Insight-users] Inputs do not pccupy the same physical space!

[Miller, James V (GE Global Research)]

Hui, 

Can you look inside the mhd files at the header and see what the origins are listed as in the file?

What about another file format? Does the same thing happen with the NIFTI format?

Jim


On Oct 21, 2011, at 5:09 AM, Hui Tang - TNW wrote:

> Dear all,
>  
> Thanks a lot fot this!!!!!!!
>  
> Bill, I donot know really what you mean with Point to datasets.........how can I oint that?
> Jim, I never change origins on purpose, and I have no idea these origins were changed after a filter.............what can I do with it?
> Arnaud, Hans,thank you tooo for your quick reply
> Thanks!
>  
> Best,
>  
> Hui
> Van: Bill Lorensen [bill.lorensen at gmail.com]
> Verzonden: donderdag 20 oktober 2011 23:39
> Aan: Hui Tang - TNW
> CC: insight-users at itk.org; Jim Miller; Jimbo
> Onderwerp: Re: [Insight-users] Inputs do not pccupy the same physical space!
> 
> Hui,
> 
> We recently added this check. Looks like we need to add a tolerance to the check.
> 
> I'ved cc'ed Jim Miller. He added the new check.
> 
> Can you point us to the datasets?
> 
> Bill
> 
> On Thu, Oct 20, 2011 at 2:31 PM, Hui Tang - TNW <H.Tang at tudelft.nl> wrote:
> Dear ITK user,
>  
> I got this error
>  
> terminate called after throwing an instance of 'itk::ExceptionObject'
>   what():  /home/htang/Programs/ITK4/ITK/Modules/Core/Common/include/itkImageToImageFilter.hxx:253:
> itk::ERROR: xxxxxxxxxxxtImageFilter(0x166f080): Inputs do not occupy the same physical space!
> InputImage Origin: [0.117188, 12.0703, 104.7], InputImage1 Origin: [0.117188, 12.0703, 104.7]
> when I read one image.
>  
> I did
> software1.exe -i input.mhd -o output1.mhd
> software2.exe -m output1.mhd -n input2.mhd -o output2.mhd
>  
> software1 is built on ITK3
> software2 is built on ITK4
>  
> If I replace output1.mhd with  input2.mhd , software 2 does not give any error.
> (do  software2.exe -m input2.mhd -n input2.mhd -o output2.mhd)
>  
> The weird thing is if I visually check output1.mhd and  inpput2.mhd, they do not look different, but their position of origion  differs slightly.
>  
>  the origins are:
> 5.000000000005e-07
> 11.9531125
> 104.4
>  
> and
>  
> 4.99188999997235e-07
> 11.9531254992
> 104.400004148079
>  
> I would appreciate you if you can help me to solve this problem, thanks a lot!!!
> 
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Jim Miller
Senior Scientist
GE Research 
Interventional and Therapy

GE imagination at work

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