METHOD FOR PROCESSING A LIGHT SIGNAL FOR DETECTING RAIN IN A VEHICLE, AND METHOD FOR DETECTING RAIN IN A VEHICLE

摘要

The invention relates to a method (200) for processing a light signal for detecting rain in a vehicle. The method (200) comprises a step of filtering (210) the light signal in order to create a stop band for light wavelengths and two pass bands for light wavelengths. The stop band extends between a first pass band located in the spectrum visible to the human eye and a second pass band located in the infrared spectrum. Values of the light signal from the second pass band are used to detect rain.