发明名称 |
SYSTEM FOR THE DETERMINATION OF RETROREFLECTIVITY OF ROAD SIGNS AND OTHER REFLECTIVE OBJECTS |
摘要 |
A system for the 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 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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申请公布号 |
US2013271613(A1) |
申请公布日期 |
2013.10.17 |
申请号 |
US201313781017 |
申请日期 |
2013.02.28 |
申请人 |
FACET TECHNOLOGY CORP. |
发明人 |
RETTERATH JAMIE E.;LAUMEYER ROBERT A. |
分类号 |
G01N21/55;G08G1/0967 |
主分类号 |
G01N21/55 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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