Dear all, "Images are not equally spaced (a difference of 0.6 vs 0.3 was detected)’ Why does this error occur? What causes the acquisition of acquired irregular geometry? is it something to do with CT machine, protocol, technique or just a problem with exporting the data? with Acquisition geometr…

Hi @manjula - There’s a description of the purpose and implementation technique in the git commit message linked below (small aside: it still makes me smile that Andras said he wished he’d thought of this : ) In your case it looks like the third cited motivation: 3) Variable table speed during CT…

Hi @pieper Thank you for the reply and I will go through it. This is what happens after loading this data and when I try to transform. Both in the stable and the preview release that I use (2021.06.24). I don’t know it is an error or not but I recorded a clip so you can see if it does what it inte…

This is probably correct because the volume rendering doesn’t take non-linear transforms like the acquisition correction into account. You can confirm this by making the slice views visible in the 3D view and they won’t match until you harden. It needs to be fixed at the VTK level, and we’ve discu…

[image] pieper: The volume rendering module should really generate a visible warning or error dialog when a volume with a nonlinear transform is selected The related issue is here: Non-linear transform is ignored by volume renderer …

Understanding CT Image spacing and Acquisition geometry regularization

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Davide_Punzo (Davide Punzo) November 13, 2023, 8:37am 7

NOTE: Support for regularization transform hardening in DICOM Scalar plugin has been added. See link.

Topic		Replies	Views
Not equally spaced error... solution? Support	1	204	April 24, 2024
Difference of spacing was detected during DICOM loading Support dicom	2	449	June 8, 2020
Arithmetic about apply regularization transform Development dicom	5	228	August 23, 2023
Uneven slice thickness Support dicom	11	1619	November 13, 2023
transversal DICOM image distorted and coronal DICOM image well Support	14	754	April 20, 2022

Understanding CT Image spacing and Acquisition geometry regularization

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