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siamak yousefi

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05 Aug 2009 B-spline Grid, Image and Point based Registration B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. Author: Dirk-Jan Kroon

hank you very much Drik.

04 Aug 2009 B-spline Grid, Image and Point based Registration B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. Author: Dirk-Jan Kroon

Thanks for you comments. I am using version 18 still have a problem using mask.

Siamak

03 Aug 2009 B-spline Grid, Image and Point based Registration B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. Author: Dirk-Jan Kroon

Hi Drik,

I have some questions related to register_volumes program:
1. Is it possible to generate the affine matrix or warp file of transformation when registering two images?
2. is it possible to reduce the run time of nonrigid registration using some parameters?
3. For nonrigid registration using a mask, How I can set the "Options.maskMoving". I tried several times using any sort of mask file type with the same dimention, but didn't work.

Siamak Yousefi

30 Jul 2009 B-spline Grid, Image and Point based Registration B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. Author: Dirk-Jan Kroon

Hi Drik,

Thanks for your comment. There is a typo in the help part of image_difference.m file. When I run "help image_difference", in the example section I see:
[t,I]=registration_error(I1, I2, 'sd');
It shold be changed to:
[t,I]=image_difference(I1, I2, 'sd');

Siamak

29 Jul 2009 B-spline Grid, Image and Point based Registration B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. Author: Dirk-Jan Kroon

Hi Drik,

I encountered another problem in registration_volumes. When I run this command:
Ireg= register_volumes(vol1, vol1, Options) That:
Options.Registration= 'Affine', all of the voxels of the output volume are zero.

Siamak
;
I am using a 3-D volume and try to

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