US 9,335,255 B2
System and Assessment of Reflective Objects Along a RoadwayGeneral
US 9,335,255 B2
System and Assessment of Reflective Objects Along a Roadway
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Michael P Stafira
Art Unit:
2886 Optics
Inventors:
James E. Retterath; Robert A. Laumeyer
Assignee:
Priority:
10/13/14
Filed:
10/13/14
Granted:
05/10/16
Expiration:
08/10/21
Abstract
A system for the assessment of reflective surfaces disposed along a roadway repeatedly illuminates an area along the roadway that includes at least one reflective surface using a 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 assessment for that reflective surface.
Cooperative Patent Classification (CPC)
G01G01N2201/06113G01S17/06G01NG08G1/096758G08GG06V20/582G06V