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Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

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Sincerely, AFNI HQ

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Angel Wong
October 10, 2009 06:13AM
Hi all

I have a problem with resampling dataset. I have two datasets.

Dataset 1:
Data Axes Approximate Orientation:
first (x) = Right-to-Left
second (y) = Anterior-to-Posterior
third (z) = Superior-to-Inferior [-orient RAS]
R-to-L extent: -0.000 -to- 254.000 [L] -step- 2.000 mm [128 voxels]
A-to-P extent: -0.000 -to- 254.000 [P] -step- 2.000 mm [128 voxels]
I-to-S extent: -128.000 -to- 0.000 -step- 2.000 mm [ 65 voxels]

Dataset 2:
Data Axes Approximate Orientation:
first (x) = Right-to-Left
second (y) = Anterior-to-Posterior
third (z) = Superior-to-Inferior [-orient RAS]
R-to-L extent: -132.732 [R] -to- 121.268 [L] -step- 2.000 mm [128 voxels]
A-to-P extent: -127.329 [A] -to- 126.671 [P] -step- 2.000 mm [128 voxels]
I-to-S extent: -2.783 -to- 125.217 [S] -step- 2.000 mm [ 65 voxels]

I want to resample dataset 2 to meet the grid and extent as dataset 1. I have tried 3dresample and it can generate a dataset which can meet the grid and extent as dataset 1. But the two images (dataset 1 and new resampled dataset) are not matched with position as viewed by afni.

How can I resample the dataset 2 with just changing the axes extents same as dataset 1 and at the same time keeping the same image position as dataset 1 (that means these two images need to be overlapped)?

Any suggestions are welcomed.

Thank you.

Angel
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Subject Author Posted

resampling dataset

Angel Wong October 10, 2009 06:13AM

Re: resampling dataset

rick reynolds October 10, 2009 12:13PM

Re: resampling dataset

Daniel Glen October 20, 2009 05:03PM