[Insight-users] PCA projection of an image?

[Zachary Pincus]

Hello,

Does anyone know if there is a method in ITK/VNL for projecting an 
image onto the orthogonal basis produced by principal components 
analysis? (The orthogonal basis is of course the set of eigenvector 
output images produced by something like 
itk::ImagePCAShapeModelEstimator.)

This sort of projection is often used in image 
compression/pre-whitening/classification in many vision tasks, so it 
would be useful to have.

If there is a good way to do this, I'd love to know what it is. If not, 
I'll get to work on an ImagePCAProjectionCalculator for ITK.

Zach Pincus

Department of Biochemistry and Program in Biomedical Informatics
Stanford University School of Medicine