A method of inspecting a road for substances includes generating a flash of infra-red light at a wavelength to illuminate a portion of the road. The wavelength corresponds to an absorption wavelength of a substance to be detected. The method further includes, in response to a difference in backscatter intensity of an image of the portion captured during the flash and an image of the portion captured before or after the flash being greater than a threshold amount, outputting a signal indicating presence of the substance on the portion.
System and Method for Inspecting Road Surfaces
12.10.2017
Patent
Elektronische Ressource
Englisch
ROAD SURFACE INSPECTING APPARATUS, ROAD SURFACE INSPECTING METHOD AND PROGRAM
Europäisches Patentamt | 2018
|System and method for automatically inspecting surfaces
Europäisches Patentamt | 2019
|SYSTEM AND METHOD FOR AUTOMATICALLY INSPECTING SURFACES
Europäisches Patentamt | 2018
|