CPC G01V 3/38 (2013.01) [G01V 3/108 (2013.01); G01V 3/36 (2013.01); G02B 27/017 (2013.01); G06F 3/011 (2013.01)] | 23 Claims |
1. A method, comprising:
using an electromagnetic (EM) tracking system to track a tangible object;
detecting a presence of interference with a magnetic field generated by the EM tracking system;
collecting interference samples with a receive coil used by the EM tracking system during periods when at least one transmit coil used by the EM tracking system is turned off;
periodically determining a number of interference samples that have been collected; and
generating, with a processor, a model of the interference after the periodically determining a number of interference samples that have been collected.
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10. A system, comprising:
an electromagnetic (EM) tracking transmitter;
an EM tracking receiver; and
a processor based apparatus in communication with the EM tracking transmitter and the EM tracking receiver;
wherein the processor based apparatus is configured to execute steps comprising:
using the EM tracking transmitter and the EM tracking receiver to implement an EM tracking system;
using the EM tracking system to track a tangible object;
detecting a presence of interference with a magnetic field generated by the EM tracking system;
collecting interference samples with a receive coil used by the EM tracking system during periods when at least one transmit coil used by the EM tracking system is turned off;
periodically determining a number of interference samples that have been collected; and
generating a model of the interference after the periodically determining a number of interference samples that have been collected.
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17. A non-transitory computer readable storage medium storing one or more computer programs configured to cause a processor based system to execute steps comprising:
using an electromagnetic (EM) tracking system to track a tangible object;
detecting a presence of interference with a magnetic field generated by the EM tracking system;
collecting interference samples with a receive coil used by the EM tracking system during periods when at least one transmit coil used by the EM tracking system is turned off;
periodically determining a number of interference samples that have been collected; and
generating a model of the interference after the periodically determining a number of interference samples that have been collected.
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