发明名称 |
System for automated determination of retroreflectivity of road signs and other reflective objects |
摘要 |
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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申请公布号 |
US2007216904(A1) |
申请公布日期 |
2007.09.20 |
申请号 |
US20070702421 |
申请日期 |
2007.02.05 |
申请人 |
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发明人 |
RETTERATH JAMES E.;LAUMEYER ROBERT A. |
分类号 |
G01N21/55 |
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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