<div>II use ITK to extract the centreline of 3D vessel ,The basic theory is to calculate the Hessian matrix of image at scale</div>
<div>Then</div>
<div>lamda1<lamda2<lamda3 and lamda1<lamda2<0</div>
<div>The scale product of eigenvector1 and gradient of image is equal to zero </div>
<div>The scale product of eigenvector2 and gradient of image is equal to zero </div>
<div>But in ITK software, I only find function itkSymmetricEigenAnalysisImageFilter to deal with 3D Hessian matrix and there is no method to get the eigenvector</div>
<div>I want to know there is any other fuction to get the eigenvector of 3D Hessian matrix </div>
<div>Thank you </div>