E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
E01C 23/01 (2006.01) E01B 35/00 (2006.01)
Patent
CA 2509076
There is provided a vision system and a method for scanning a traveling surface such a road to detect surface defects thereof such as cracks. The vision system, which is mountable on a vehicle, is provided with a linear imaging system for imaging successive adjacent transversal linear portions of the traveling surface as the vehicle advances. The vision system is also provided with laser line projecting means angularly projecting a laser line onto the transversal linear portion of the traveling surface to be imaged in a substantially coplanar relationship with the linear imaging system. The present vision system is particularly devised to be immune to surrounding light conditions variations to provide optimum cracks image contrast for both transverse and longitudinal cracks.
Doucet Michel
Laurent John
Institut National D'optique
Robic
LandOfFree
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