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xia wei


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09 Aug 2011 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 Dirk,
In bspline_registration_gradient.m,I find that there is a function bspline_error_3d_double to caculate the O_error and O_grad,but it also has other two functions image_difference and error_gradient3d to caculate the O_error and O_grad, why we need the functions image_difference and error_gradient3d?And in example_3d_norigid.m,which functions give us the results of O_error and O_grad?

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