Image analysis – Applications – Vehicle or traffic control
Reexamination Certificate
2006-05-09
2006-05-09
Choobin, Barry (Department: 2623)
Image analysis
Applications
Vehicle or traffic control
C382S162000, C382S106000, C359S627000
Reexamination Certificate
active
07043057
ABSTRACT:
A system for the automated determination of retroreflectivity values for reflective surfaces disposed along a roadway repeatedly illuminates an area along the roadway that includes at least one reflective surface using a strobing light source. Multiple light intensity values are measured over a field of view which includes at least a portion of the area illuminated by the light source. A computer processing system is used to identifying a portion of the light intensity values associated with a reflective surface and analyze the portion of the light intensity values to determine at least one retroreflectivity value for that reflective surface.
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Laumeyer Robert A.
Retterath James E.
Choobin Barry
Facet Technology Corporation
Patterson Thuente Skaar & Christensen P.A.
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