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Systems and methods for tracking points within an encasement

  • US 9,286,695 B2
  • Filed: 03/13/2014
  • Issued: 03/15/2016
  • Est. Priority Date: 03/13/2014
  • Status: Active Grant
First Claim
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1. A tracking method comprising:

  • designating, by a processor, an encasement at a first location within a first image acquired at a first time;

    identifying, by the processor, points to track within the encasement;

    determining, by the processor, characteristics of the points to track;

    tracking, by the processor, the points over time based on the characteristics; and

    determining, by the processor, a second location of the encasement within a second image acquired at a second time based on positions of the tracked points at the second time,wherein the determining of the second location of the encasement comprises;

    selecting pairs of the tracked points;

    for each of the pairs, determining a length of the encasement based on a position of each of the points with respect to the encasement and a distance between the points;

    for each of the pairs, determining the second location of the encasement within the second image based on the length of the encasement, the position of each of the points with respect to the encasement, and a position of each of the points at the second time andselecting an optimal second location of the encasement from the second locations of the encasement determined for each of the pairs.

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