Projects SPD matrix S2 to the tangent space of SPD matrix S1
using the Affine-Invariant Riemannian Metric (AIRM).
Tangent vector is `S1^(1/2)
Usage
logmap_spd_airm(S1, S2, regularize_epsilon = 1e-06)
Arguments
- S1
Reference SPD matrix.
- S2
SPD matrix to project.
- regularize_epsilon
Epsilon for regularization. Default 1e-6.
Value
A symmetric matrix (tangent vector at S1).