[Insight-users] RE: Error: jointPDFSum == 0!
Li, George (NIH/NCI)
ligeorge at mail.nih.gov
Fri Dec 10 13:47:02 EST 2004
Luis and Jim:
My obvious mistake: the initialParameters were not changed
to 3D. After the change, it seems working fine: only one
iteration is made.
Here is the key output:
Iteration = 1
Metric value = -0.56463
Stop Condition = 1
Of course, the code does not recognize *.dcm as an output
file name. That is the only problem, which may be coded as
"Stop Condition = 1".
So, for the output file, does ITK support dicom series as
output file? Or what kind of output file format is does
support?
Thanks a lot for your previous helps.
George
-----Original Message-----
From: Li, George (NIH/NCI)
Sent: Friday, December 10, 2004 9:51 AM
To: 'Luis Ibanez'
Cc: 'insight-users at itk.org'; 'Miller, James V (Research)'
Subject: RE: [Insight-users] RE: Error: jointPDFSum == 0!
Luis:
I don't get any output from the observer. It throws
the exception pretty early in the execution, not even done
the first iteration. I have followed the VC6 debugger into
the code, it is stopped at the first time of getting metric
value. Therefore, it might be suspicious that I have not
done the initialization correctly with ITK. For instance,
It might miss a step of something. If you can do a quick
check on the code for me, it will be greatly appreciated.
Here I attached two files: one is the complete code I used based on the
modification of the two examples, and the other is the output of the
messages by execute the code. hopefully, it will helpful to nail down the
problem.
I really appreciate all of the helping efforts you guys provide.
Thanks,
George
-----Original Message-----
From: Luis Ibanez [mailto:luis.ibanez at kitware.com]
Sent: Friday, December 10, 2004 12:24 AM
To: Li, George (NIH/NCI)
Cc: 'Miller, James V (Research)'; 'insight-users at itk.org'
Subject: Re: [Insight-users] RE: Error: jointPDFSum == 0!
Hi George,
The Example ImageRegistration4.cxx has already a Command/Observer connected
to the optimizer.
When you run the example... do you get any output
from this observer ?
It should be something like an iteration number,
the metric value and the list of transform parameters (potentially many of
those lines).
Please post the the list *all* the messages that you
get before you see the exception being thrown.
Thanks
Luis
--------------------------------
Li, George (NIH/NCI) wrote:
> Jim:
>
> I used the same image series for both fixed and moving images, so that
> it is guaranteed to have overlap between the two. Of course,
> presumably the origin of the two is the same, as it was indicated in
> both print-out of the images (I did not provide both in my previous
> mail, because they are identical).
>
> Based on your explanation on the exception message, similar to what I
> guessed from these words, there must be something else that has not
> been set correctly, rather than the image series themselves.
>
> Based on your experience, do you think my simple approach to register
> 3D images is valid? I did simple substitution of imageFileReader in
> the imageRegistration4.cxx by the dicomSeriesReader from the other
> example. I assumed that the registration behind the scene is
> implemented independent of the dimension of the image, as it should.
>
> Anyway, I am new to ITK and your input is very valuable.
>
> Thanks,
>
> George
>
>
>
> -----Original Message-----
> From: Miller, James V (Research) [mailto:millerjv at crd.ge.com]
> Sent: Thursday, December 09, 2004 1:56 PM
> To: Li, George (NIH/NCI); 'insight-users at itk.org'
> Subject: RE: [Insight-users] RE: Error: jointPDFSum == 0!
>
>
> George,
>
> What is the origin of the other image?
>
> It looks like the origin of one image is [0, 0, -1264.5].
>
> Your transform is probably initially the identity, resulting in an
> assumption that the two image set overlap in physical space (meaning
> if you laid out the two images pinned down at their respective
> origins, and the sizes of the image took into account the spacing of
> the pixels, then the two images would overlap).
>
> Whenever you get the message
>
> Too many samples map outside moving image buffer: 0 / 10000
>
> It means the fixed and moving image are not overlapping (after the
> application of the current transform). A set of points is selected in
> on of the images and mapped through the transform to identify
> locations in the other image. If the mapping puts all the samples
> outside the other image, then an exception occurs.
>
> If you "know" the images are supposed to span the same region of
> anatomy, then the two image series may simply have had different
> landmarks prescribed during acquisition. In this case, you can either
> set the initial transformation to be a translation of
>
> movingImageReader->GetOutput()->GetOrigin() -
> fixedImageReader->GetOutput()->GetOrigin()
>
> or you can use the ChangeInformationImageFilter to override the origin
> of one of the images.
>
> Jim
>
>
>
>
> -----Original Message-----
> From: Li, George (NIH/NCI) [mailto:ligeorge at mail.nih.gov]
> Sent: Wednesday, December 08, 2004 10:08 AM
> To: 'Miller, James V (Research)'; 'insight-users at itk.org'
> Subject: RE: [Insight-users] RE: Error: jointPDFSum == 0!
>
>
> Jim:
>
> Thanks for the tip to print out the image. Here is the print out
> content about the image and the exception. Maybe it will give a clue
> to what has gone wrong. This time, the exception seems thrown out a
> bit earlier in the
> GetValue() method. It complains "Too many samples map outside moving image
> buffer" at the end.
>
>
> Argument[1]: ..\ITK_Data\PQ_HDR_VR-vr
> Argument[2]: ..\ITK_Data\PQ_HDR_VR-vr
>
> Now reading series:
>
> 2.16.840.1.113662.2.2534022882858481901029150326.1
> Image (0166FE68)
> RTTI typeinfo: class itk::Image<unsigned short,3>
> Reference Count: 1
> Modified Time: 2805
> Debug: Off
> Observers:
> none
> Source: (0166DA80)
> Source output index: 0
> Release Data: Off
> Data Released: False
> Global Release Data: Off
> PipelineMTime: 1447
> UpdateMTime: 2806
> LargestPossibleRegion:
> Dimension: 3
> Index: [0, 0, 0]
> Size: [512, 512, 43]
> BufferedRegion:
> Dimension: 3
> Index: [0, 0, 0]
> Size: [512, 512, 43]
> RequestedRegion:
> Dimension: 3
> Index: [0, 0, 0]
> Size: [512, 512, 43]
> Spacing: [0.742188, 0.742188, 10]
> Origin: [0, 0, -1264.5]
> PixelContainer:
> ImportImageContainer (0166FF80)
> RTTI typeinfo: class itk::ImportImageContainer<unsigned long,
> unsigned short>
> Reference Count: 1
> Modified Time: 1515
> Debug: Off
> Observers:
> none
> Pointer: 0166FFB0
> Container manages memory: true
> Size: 11272192
> Capacity: 11272192
>
> ExceptionObject caught !
>
> itk::ExceptionObject (0104FBE4)
> Location: "Unknown"
> File: C:\Programming\ITK_1.8.0\InsightToolkit-1.8.0\Code\Algorithms\
> itkMattesMutualInformationImageToImageMetric.txx
> Line: 623
> Description: itk::ERROR:
> MattesMutualInformationImageToImageMetric(01667B50):
> Too many samples map outside moving image buffer: 0 / 10000
>
>
> I checked the origin with another image series, it has all zero value
> but with the same exception, so the negative z0 should not be
the
> cause.
>
> Any idea about "Too many samples map outside moving image Buffer"?
>
> Thanks,
>
> George
>
>
>
>
> -----Original Message-----
> From: Miller, James V (Research) [mailto:millerjv at crd.ge.com]
> Sent: Tuesday, December 07, 2004 2:49 PM
> To: Li, George (NIH/NCI); 'insight-users at itk.org'
> Subject: RE: [Insight-users] RE: Error: jointPDFSum == 0!
>
>
> George,
>
> Are the images being read in correctly? After you do a
> fixedImageReader->Update(), can you print out the image
>
> fixedImageReader->GetOutput()->Print(std::cout);
>
> (and the same for the moving image) to make sure the images have the
> proper resolution?
>
> Jim
>
> -----Original Message-----
> From: Li, George (NIH/NCI) [mailto:ligeorge at mail.nih.gov]
> Sent: Tuesday, December 07, 2004 1:48 PM
> To: 'insight-users at itk.org'
> Subject: [Insight-users] RE: Error: jointPDFSum == 0!
>
>
> BTW, even if I used the identical dicom image series
> for both fixedImage and movingImage, this problem is
> still there. In this case, jointPDFSum must equal to
> 1.0. So, it shouldn't be image data related problem,
> unless the data is not read properly or completely.
>
> As a matter of fact, I think jointPDFSum is assigned
> by a value that is not initialized, because in VC6++
> debug tool, jointPDFSum value is 1.#QNAN00000000000.
>
> Anyone can help me with this?
>
> Thanks,
>
> George
>
>
>
>
> Hi, Luis and insight users:
>
> I did a test to combine two examples together and
> see how image registration can be applied to 3D
> image series. Enclosed please find my code for the registration of 3D
> image series.
>
> Basically, I used the ImageRegistration4.cxx as the
> major code but replaced the image reading part with corresponding code
> in DicomSeriesReadImageWrite.cxx.
>
> Unfortunately, I got an exception that is related a
> zero sum for the jointPDFSum, which supposed to be 1,
> inside itkMattesMutualInformationImageToImageMetric::
> GetValue().
>
> What could be done wrong here? Is there extra things
> need to be done for the image series, comparing with
> single image file?
>
> Thanks a lot.
>
> George
>
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