Recently, skeleton-based human action recognition has been receiving significant attention
from various research communities due to the availability of depth sensors and real-time …

One approach to parametric and adaptive model reduction is via the interpolation of
orthogonal bases, subspaces or positive definite system matrices. In all these cases, the …

We present a procedure to generate smooth interpolating curves on submanifolds, which
are given in closed form in terms of the coordinates of the embedding space. In contrast to …

We address the problem of computing Riemannian normal coordinates on the real, compact
Stiefel manifold of orthonormal frames. The Riemannian normal coordinates are based on …

A unified framework for studying extremal curves on real Stiefel manifolds is presented. We
start with a smooth one-parameter family of pseudo-Riemannian metrics on a product of …

In the present paper we give a historical account-ranging from classical to modern results–of
the problem of rolling two Riemannian manifolds one on the other, with the restrictions that …

Media streaming is the killer application in current Internet. There are a variety of media
streaming techniques in today's Internet, such as RTSP, HTTP live streaming and Adobe …

One approach to parametric and adaptive model reduction is via the interpolation of
orthogonal bases, subspaces or positive definite system matrices. In all these cases, the …

The objective of the current paper is essentially twofold. Firstly, to make clear the difference
between two notions of rolling a Riemannian manifold over another, using a language …

We discuss the rolling, without slipping and without twisting, of Stiefel manifolds equipped
with α-metrics, from an intrinsic and an extrinsic point of view. We, however, start with a more …