ITKElastix | ITK Python interface to elastix , a toolbox
kandi X-RAY | ITKElastix Summary
kandi X-RAY | ITKElastix Summary
Provides an [ITK] Python interface to [elastix] a toolbox for rigid and nonrigid registration of images. elastix is open source software, based on the well-known [Insight Toolkit (ITK)] The software consists of a collection of algorithms that are commonly used to solve (medical) image registration problems. The modular design of elastix allows the user to quickly configure, test, and compare different registration methods for a specific application.
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Top functions reviewed by kandi - BETA
- Create a transformation matrix from an iterator .
- Compute Jacobian Jacobian .
- Create a new Transformix Filter field .
ITKElastix Key Features
ITKElastix Examples and Code Snippets
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QUESTION
Given 3D MRI scans A
, B
, and C
I want to perform an affine (co)registration of B
onto A
, take the transformation affine matrix of the registration and apply it on C
.
My problem is that the affine matrix of the registration transform has the wrong signs. Maybe due to wrong orientation?
The TransformParameters
contain 12 values of which the first 9 are the rotation matrix in row-major order and the last 3 are the translation values.
ANSWER
Answered 2022-Mar-11 at 19:38Taking a look at this diff, you might be more interested in the old way of doing it. It directly constructs an ITK transform from 4x4 matrix.
But beware, I think there is a bug somewhere in this code. I added this recently and it decreased test accuracy, which makes me believe there is a bug somewhere in there.
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