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Bibliographic Details
Main Authors: Lu, Tianlu, Sijan, Asif, Noh, Thomas, Chen, Huaijin, Popov, Andrey A.
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.03105
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Table of Contents:
  • This paper introduces the ensemble directional Kalman filter (EnDKF), an ensemble-based Kalman filtering approach for pose tracking that jointly estimates an object's position and attitude using ideas from directional statistics. The EnDKF integrates a unit-quaternion attitude representation to move beyond canonical Kalman filter mean and covariance assumptions that poorly capture directional uncertainty. Experiments on a synthetic constant-velocity constant-angular-velocity system and a digital-twin head-tracking scenario using the FoundationPose algorithm demonstrate a significant reduction in error as opposed to merely using measurements.