Interpolation of Manifold-Valued Functions via the Polar Decomposition
Evan Gawlik
UCSD
Abstract:
Manifold-valued data and manifold-valued functions play an important
role in a wide variety of applications, including mechanics, computer
vision and graphics, medical imaging, and numerical relativity. This
talk will discuss techniques for interpolating manifold-valued
functions, approximating the Riemannian exponential map on matrix
manifolds, and computing means on matrix manifolds. Emphasis will be
placed on techniques that involve the polar decomposition -- the
well-known factorization of a real nonsingular matrix into the product
of a symmetric positive-definite matrix times an orthogonal matrix --
and its generalization to Lie groups.