Unscented dual quaternion particle filter for SE (3) estimation

K Li, F Pfaff, UD Hanebeck - IEEE Control Systems Letters, 2020 - ieeexplore.ieee.org
We present a novel dual quaternion filter for recursive estimation of rigid body motions.
Based on the sequential Monte Carlo scheme, particles are deployed on the manifold of unit …

Grid-based quaternion filter for so (3) estimation

K Li, F Pfaff, UD Hanebeck - 2020 European Control …, 2020 - ieeexplore.ieee.org
A novel discrete Bayesian filtering scheme is proposed on the manifold of unit quaternions
for rotation estimation. Existing quaternion filters rely on specific distributions (typically the …

The Harmonic Exponential Filter for Nonparametric Estimation on Motion Groups

M Saavedra-Ruiz, SA Parkison, R Arora… - IEEE Robotics and …, 2025 - ieeexplore.ieee.org
Bayesian estimation is a vital tool in robotics as it allows systems to update the robot state
belief using incomplete information from noisy sensors. To render the state estimation …

Hyperspherical Dirac Mixture Reapproximation

K Li, F Pfaff, UD Hanebeck - arxiv preprint arxiv:2110.10411, 2021 - arxiv.org
We propose a novel scheme for efficient Dirac mixture modeling of distributions on unit
hyperspheres. A so-called hyperspherical localized cumulative distribution (HLCD) is …

[PDF][PDF] On-manifold recursive Bayesian estimation for directional domains

K Li - 2022 - core.ac.uk
Uncertainty quantification and state estimation of random variables in directional domains
play important roles in ubiquitous application scenarios, in particular, robotic perception …

A Hyperhemispherical Grid Filter for Orientation Estimation

F Pfaff, K Li, UD Hanebeck - 2020 IEEE 23rd International …, 2020 - ieeexplore.ieee.org
Estimating orientations of objects in Euclidean space is an omnipresent challenge in
robotics and autonomous systems. A useful representation of orientations involves unit …

Non-parametric mixed-manifold products using multiscale kernel densities

D Fourie, PV Teixeira, J Leonard - 2019 IEEE/RSJ International …, 2019 - ieeexplore.ieee.org
We extend the core operation of non-parametric belief propagation (NBP), also known as
multi-scale sequential Gibbs sampling, to approximate products of kernel density estimated …

Dual quaternion sample reduction for SE (2) estimation

K Li, F Pfaff, UD Hanebeck - 2020 IEEE 23rd International …, 2020 - ieeexplore.ieee.org
We present a novel sample reduction scheme for random variables belonging to the SE (2)
group by means of Dirac mixture approximation. For this, dual quaternions are employed to …

Filtering on the unit sphere using spherical harmonics

F Pfaff, G Kurz, UD Hanebeck - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
For manifolds with topologies that strongly differ from the standard topology of R n, using
common filters created for linear domains can yield misleading results. While there is a lot of …

Circular Discrete Reapproximation

K Li, F Pfaff, UD Hanebeck - 2022 25th International …, 2022 - ieeexplore.ieee.org
We present a novel nonparametric scheme for modeling circular random variables. For that,
the circular Cramer-von Mises distance (CCvMD) is proposed to measure the statistical …