How to use "imregister" with "InitialTransformation"?

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Wei Zheng
Wei Zheng 2022 年 3 月 17 日
回答済み: Steve Eddins 2022 年 3 月 24 日
Hi everyone,
I try to use imregister with intialization:
% im: 3D image to be registered
% fixed: 3D Reference image
% [optimizer, metric] = imregconfig('monomodal');
% R_reg_old: an imreg3d object
[movingRegistered, R_reg] = imregister(im,fixed,'rigid',optimizer, metric,'InitialTransformation',R_reg_old);
But I get this error:
Error using imregtform>preparseSpatialRefObjects (line 492)
Expected spatial referencing arguments to be 2nd and 4th input arguments.
Error in imregtform>parseInputs (line 243)
[R_moving,R_fixed,varargin] = preparseSpatialRefObjects(varargin{:});
Error in imregtform (line 124)
parsedInputs = parseInputs(varargin{:});
Error in imregister (line 119)
tform = imregtform(varargin{:});
I checked the document of imregister: https://www.mathworks.com/help/images/ref/imregister.html
But I still don't understand why I got this error. Can anyone help me with this?
Thank you so much!

採用された回答

Steve Eddins
Steve Eddins 2022 年 3 月 24 日
The value of InitialTransformation is supposed to be an affine3d object, not an imref3d object. See the doc description for the InitialTransformation input.

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