System and method for measuring position and orientation using distortion-compensated magnetic fields
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United States of America Patent
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May 13, 2008
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app pub date -
Sep 20, 2004
filing date -
Sep 20, 2004
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Abstract
An electromagnetic tracking system (600) and a distortion compensation method (500) that utilize a lead-lag network model to compensate for position and orientation distortion caused by eddy currents formed in one or more conductive distorters (330, 658A-C) located within a tracking environment during electromagnetic tracking of one or more objects (612). the method is adaptive relative to the amount of distortion cause by the conductive distorters.
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