METHOD AND APPARATUS FOR CAMERA-BASED 3D FLAW TRACKING SYSTEM
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United States of America Patent
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Issued Date -
May 15, 2014
app pub date -
Nov 15, 2013
filing date -
Nov 15, 2012
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Abandoned
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Abstract
Systems and methods facilitate long-range, accurate fiducial tracking using a mixture of pan-tilt and camera devices enabling generalized 3D tracking of fiducials with the automatic mapping of flaw data to component models within standard CAD packages. The invention is suitable to many various tracking applications, particularly large inspection sites such as aircraft surfaces which require vast coverage with a medium-degree of accuracy. A method of surface inspection comprises the steps of moving a fiducial target over a surface under inspection, and tracking the fiducial as it is moved by capturing and storing the coordinates of the fiducial in a database for subsequent retrieval. Machine vision is used to acquire surface inspection data associated with the coordinates of the fiducial as it is moved. The inspection data is integrated into a CAD model, enabling the use of finite element analysis (FEA) to determine or predict flaw and material behavior over time.
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