Volumetric Image Registration From Invariant Keypoints

Abstract

We present a method for image registration based on 3D scale- and rotation-invariant keypoints. The method extends the scale invariant feature transform (SIFT) to arbitrary dimensions by making key modifications to orientation assignment and gradient histograms. Rotation invariance is proven mathematically. Additional modifications are made to extrema… (More)
DOI: 10.1109/TIP.2017.2722689

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