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System and method for improving the distortion tolerance of an electromagnetic tracking system

  • US 7,912,662 B2
  • Filed: 09/24/2007
  • Issued: 03/22/2011
  • Est. Priority Date: 09/24/2007
  • Status: Active Grant
First Claim
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1. A method of improving a distortion tolerance of an electromagnetic tracking system, the method comprising:

  • using a plurality of coil combinations to calculate a plurality of position and orientation values;

    using a computing device to analyze the plurality of position and orientation values to determine differences between the plurality of position and orientation values and removing the position and orientation values that are above an acceptable range or that are above a predetermined threshold value; and

    using an optimizing technique to change the operating conditions of the electromagnetic tracking system to reduce the differences between the plurality of position and orientation values.

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