How to initlialize the 'RotationMatrices' property in a cameraParameters Object?

I want to generate / initialize my own cameraParamters object with the 'RotationMatrices' Property.

I'm getting this error:

'RotationMatrices' is not a recognized parameter. For a list of valid name-value pair arguments, see the documentation for this function.

cPara = cameraParameters('IntrinsicMatrix',W','RotationMatrices',R,'TranslationVectors',T);

I try to convert it to a structure, add the field and then reconvert back but to no avail.

I'm doing this to use with the bundleAdjustment function. Can someone tell me how to go about this? Thanks

[John D'Errico]

Please don't use the tags to add long rambling comments.

Answer 1

[Walter Roberson]

You cannot initialize that property. That property is a Dependent property, calculated from other properties, at approximately line 418 of toolbox/vision/vision/+vision/+internal/+calibration/CameraParametersImpl.m . The RotationVectors are used to compute it. The RotationVectors can be initialized.

[BLEARGH BUNY]

Okay, Say I have Rotation Matrices of form 3x3x4, how to initialize rotation vectors so I can fill in the RM's in the struct?

[BLEARGH BUNY]

can try this

for i = someding:someding

...

R(i,:) = rotationMatrixToVector(r);

...

end

cpas = cameraParameters('IntrinsicMatrix',W','RotationVectors',R,'TranslationVectors',T);

Dont know how well this would work though.. or what errors can creep in..

[Walter Roberson]

It appears to me that you could loop using vision.internal.calibration.rodriguesMatrixToVector to convert the rotation matrix back to the vectors that are used.

[BLEARGH BUNY]

Hi Walter thanks for your answer:

Please answer this question for me https://www.mathworks.com/matlabcentral/answers/369124-create-a-cameraparameters-object-with-more-than-one-intristic-matrix

BB

[BLEARGH BUNY]

Hey Walt,

Answer my other question if you can buddy, you would really be helping me out..

Thanks mate

BB

[Walter Roberson]

Sorry, I am not familiar with that topic.