Kopfverfolgungssystem mit Erweitertem Kalman-Filter, der Absolute und Relative Navigation Kombiniert

Details

Veröffentlichungs-Nr.

EP4209867

Aktenzeichen

EP23151205

Anmeldetag

11. Januar 2023

Veröffentlichung

12. März 2025

Erteilung

12. März 2025

Rechtsraum

EP

IPC

G06F3/01F41G3/22G06F3/03

Abstract

A system and method for head tracking for a head worn display (HWD) includes head-frame and platform-frame IMUs providing high-rate pose data of the wearer's head and a mobile platform. An optical tracker estimates an optical pose of a camera oriented at fiducials based on a comparison of 2D image data captured by the camera (and portraying the fiducials within the image) and the known location of each fiducial in a 3D marker frame. The pIMU also provides low-rate, high-integrity georeferenced pose data of the mobile platform (e.g., in an earth frame). The head tracker provides low-rate, high-integrity absolute head pose solutions (e.g., user head pose in the earth frame) based on the georeferenced pose data and current high-rate head/platform pose data, updating the absolute pose solutions with high-rate updates based on combined extended Kalman filter propagation of the high-rate head and platform pose data with refined optical pose data.

Anmelder

Firma

Rockwell Collins, Inc.

Land

🇺🇸 USA

Fachgebiete