geodesic_Riemann: Riemannian geodesic

In livioivil/Riemann: Riemann

Description

Computes the Riemannian geodesic using the Fisher (affine-invariant) metric between two Symmetric Positive Definite (SPD) matrices. mean_geometric_Riemann is the geodesic with t=.5.

Usage

geodesic_Riemann(M1, M2, t)

Arguments

M1	a SPD Matrix
M2	a SPD matrix (same dims of M1).
t	(real number) arc-length of the geodesic from M1 to M2 (e.g., t=0 yields M1, t=1 yields M2, t=.5 yields the geometric mean of M1 and M2).

Author(s)

Livio Finos, Marco Congedo

References

https://hal.archives-ouvertes.fr/hal-00681328 (see equation 4)

livioivil/Riemann documentation built on May 18, 2019, 1:26 a.m.