Difference between revisions of "Electromagnetic tracking"
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'''Electromagnetic tracking''' is a kind of [[3D tracking]] that generates magnetic fields and detects them from a sensor. It is a native technology for [[6DOF tracking]]. It can be implemented in an [[electromagnetic tracking system]]. | '''Electromagnetic tracking''' is a kind of [[3D tracking]] that generates magnetic fields and detects them from a sensor. It is a native technology for [[6DOF tracking]]. It can be implemented in an [[electromagnetic tracking system]]. | ||
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Magnetic tracking preserves high frequency transients in movement, like a flick of a finger. | Magnetic tracking preserves high frequency transients in movement, like a flick of a finger. | ||
Revision as of 19:34, 26 August 2024
Electromagnetic tracking is a kind of 3D tracking that generates magnetic fields and detects them from a sensor. It is a native technology for 6DOF tracking. It can be implemented in an electromagnetic tracking system.
Magnetic tracking preserves high frequency transients in movement, like a flick of a finger.
It was invented in about 1970 by Polhemus. Another company that has made electromagnetic tracking devices is Ascension Technologies.
The Magic Leap 1 uses magnetic tracking for its handheld controller, but in a poor form.
Examples of products include the Polhemus FASTRAK.
A metallic object has to be at least a foot or two away from the tracking area so it doesn't interfere. Metallic objects cause jitter and drift.
Companies
Types
- AC magnetic tracking (Polhemus)
- pulsed DC magnetic tracking (Used by Ascension, later NDI)