How to detect the fog by spectroscopic analysis and equipment

摘要

This invention, regards the detection, density measurement or classification of the aerosol with spectroscopic analysis. In this case, at least from one picture, the 1st value for a certain parameter is required making use of the picture which was photographed by the camera on vehicle, in first step, by 1st color filtering, or without doing that with the 2nd color filtering which differs in 2nd step, preceding color filtering, the 2nd value for the same parameter is required. Next the value which was required at least with two steps is compared, depends on the relative result and detection or density measurement or classification of the aerosol are executed.