System and method for image based sensor calibration
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United States of America Patent
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Nov 27, 2012
Grant Date -
Mar 3, 2011
app pub date -
Nov 8, 2010
filing date -
Jun 14, 2000
priority date (Note) -
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Abstract
Apparatus and methods are disclosed for the calibration of a tracked imaging probe for use in image-guided surgical systems. The invention uses actual image data collected from an easily constructed calibration jig to provide data for the calibration algorithm. The calibration algorithm analytically develops a geometric relationship between the probe and the image so objects appearing in the collected image can be accurately described with reference to the probe. The invention can be used with either two or three dimensional image data-sets. The invention also has the ability to automatically determine the image scale factor when two dimensional data-sets are used.
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