Method and system for geometric distortion free tracking of 3-dimensional objects from 2-dimensional measurements
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United States of America Patent
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app pub date -
Oct 8, 2004
filing date -
Apr 2, 2004
priority date (Note) -
Abandoned
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Abstract
Certain embodiments of the present invention provide a method and system for improved tracking of an internal object, such as an implant or part of the anatomy, during an image-guided operation. In an embodiment, the method may include obtaining a plurality of fiducials for an internal object from a plurality of projection views, obtaining a plurality of measurements for the internal object using the plurality of fiducials, forming a three-dimensional model of the internal object using the plurality of measurements from a plurality of projection views for use in tracking the internal object, and performing an image-guided operation using an image data set and a three-dimensional representation of the internal object. The fiducials may be indentations, curves, grooves and/or identifying features in the internal object. In an embodiment, the representation of the internal object is compared to a computer-generated model of the internal object.
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