How can I fix the error "The specified transformation matrix is not valid because it is singular to working precision."
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I want to do image registration and therefore calculate the transformation matrix with the following code.
[tform, inlierIdx, status] = estgeotform2d(matchedPointsDis,matchedPointsRef,'projective', MaxNumTrials=100000, MaxDistance=1);
But really often the following error occurs:
The specified transformation matrix is not valid because it is singular to working precision.
Does anyone knows what the problem is?
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Siraj
am 4 Sep. 2023
Hi! It is my understanding that you have two images, and you are trying to register them. To my knowledge, the error that you are getting is because there are not enough inliners in “matchedPointsDis” and “matchedPointsRef”. One possible reason for such an error can also be that the inliner points are collinear.
To resolve this issue, try using some other feature extraction technique.
You can also check the “status” and see what is going wrong.
Refer to the following link to see what the “status” code signifies.https://www.mathworks.com/help/vision/ref/estgeotform2d.html#mw_f1265016-2bb6-4f73-a574-04fd68d80698
Hope this helps.
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