estgeotform2d Not all transformType arguments are available?

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Michael Jones
Michael Jones 2024-3-20
评论： Michael Jones 2024-3-21
Hi,
I have a time series of images that have a translation with no rotation (it's a fixed stage in the rotation axis) that I need to align. So far I'm having great success with using detectSIFTFeatures and then aligning matched pairs with estgeotform2d, with the transformType set to "rigid". However, sometimes this introduces a rotation, and so a "translation" transformType would be better. But when I try this I get an error?
estgeotform2d(matchedDistorted,matchedOriginal,'translation')
Error using vision.internal.geotrans.parseEstimateGeometricTransform>checkTransformType2d
Expected TransformType to match one of these values:
'rigid', 'similarity', 'affine', 'projective'
The input, 'translation', did not match any of the valid values.
Error in vision.internal.geotrans.parseEstimateGeometricTransform (line 67)
[sampleSize, tformType] = checkTransformType2d(char(transformType), fileName);
Error in vision.internal.geotrans.algEstimateGeometricTransform (line 31)
vision.internal.geotrans.parseEstimateGeometricTransform(statusCode,...
Error in estgeotform2d (line 11)
vision.internal.geotrans.algEstimateGeometricTransform(...
The documentation clearly states that "translation" is an option (since R2022b): https://au.mathworks.com/help/vision/ref/estgeotform2d.html
But then if I click on the link in the error message it says that "translation" is not an option?
Do I need to update something? It seems my Matlab (2023b) has less functionallity?
Thanks in advance.

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采纳的回答

Walter Roberson
Walter Roberson 2024-3-21
You are looking at the R2024a documentation, but you are using R2023b.
(That and the fact that the R2024a documentation misses out noting the change in the change summary section.)
  1 个评论
Michael Jones
Michael Jones 2024-3-21
Thanks, this is what I suspected. It would be creat if this was noted somewhere...
I guess I'll see when my institution plans on rolling out 2024a

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