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Probe tracking using multiple tracking methods

  • US 8,478,383 B2
  • Filed: 12/14/2010
  • Issued: 07/02/2013
  • Est. Priority Date: 12/14/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving at a processor an input indicative of respective measured locations of a plurality of points disposed along a length of a probe inside a body of a subject, the probe having a predetermined shape;

    applying a model of known mechanical properties of the probe to the respective measured locations with respect to a plurality of shapes of the probe different from the predetermined shape;

    choosing a shape of the plurality of shapes and determining preliminary coordinates of the respective measured locations responsively to the chosen shape;

    minimizing differences between the respective measured locations and the preliminary coordinates; and

    generating corrected coordinates of the points along the length of the probe based on the minimized differences.

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