A computer system with one or more cameras monitors the head poses produced by a head-tracking system and produces a pass/fail indication that the head poses are reliable in a high assurance environment. The system may identify individual fiducials and independently verifying that they conform to the computed pose; and/or compute a location of fiducials as would be observed by a single verification camera and compare the computed locations to actual observed locations. The verification camera may be part of a second head-tracking system, utilized while not operating in its ordinary capacity. The computer system may also calibrate the head-tracking system to account for temperature and pressure fluctuations and perform image stabilization before the image frames are passed to the head-tracking system for processing by observing separate fiducials in fixed locations relative to the camera.
High assurance head tracker monitoring and calibration
15.09.2020
Patent
Elektronische Ressource
Englisch
Tracker quality monitoring by nondedicated calibration flights
Online Contents | 2014
|Tracker Quality Monitoring by Nondedicated Calibration Flights
Online Contents | 2014
|NTRS | 1968
|TIBKAT | 1968
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