Stationary Dimensioning Apparatus and Method Employing Fluorescent Fiducial Marker
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Sep 11, 2015
filing date -
Sep 12, 2014
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Abstract
A stationary dimensioning apparatus dimensions a load on a movable conveyance by detecting a barcode fiducial that is situated on the conveyance and by detecting a large number of points in space that represent points on the surface of the load. The barcode fiducial fluoresces as a predetermined wavelength, and the points in space are detected in the form of electromagnetic energy at the same predetermined wavelength. The electromagnetic energy is subjected to a band pass filter that rejects all but the predetermined wavelength before the remaining electromagnetic energy is impinged on a camera sensor. The location of the barcode fiducial on the conveyance is compared with a reference location of a reference barcode fiducial, and a translation vector and a rotation vector between them are calculated. The translation and rotation vectors are then employed in a transformation matrix that is used to transform each of the detected points in space into transformed points in space to generate a characterization of the dimensions of the load.
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