如何使用Python在SimpleITK中进行逆B样条变换

Question

我想逆转以下转换。以下是我在Python中使用SITK库进行的B样条转换：

def get_random_bspline_2d(physical,m=4):
    dimension = 2
    spline_order = 3
    bspline = sitk.BSplineTransform(dimension, spline_order)
    bspline.SetTransformDomainPhysicalDimensions(physical)

    mesh_size = [m,m]
    bspline.SetTransformDomainMeshSize(mesh_size)

    # Random displacement of the control points.
    originalControlPointDisplacements = np.random.random(len(bspline.GetParameters())) * 20 - 10
    bspline.SetParameters(originalControlPointDisplacements)
    return bspline

bspline = get_random_bspline_2d([100,100])
img = sitk.GetImageFromArray(np.reshape(np.arange(100*100),[100,100])) 
img_transformed = sitk.GetArrayFromImage(sitk.Resample(img, bspline))
#plt.imshow(img_transformed)