Vehicle's visibility measurement determining method, involves transforming light distribution into perspective view of position such that another light distribution is retained, and determining measurements from latter light distribution

摘要

The method involves determining light distribution including brightness distribution and/or spectral distribution of light surfaces e.g. luminous surfaces, of a vehicle (1) and/or in surroundings of the vehicle using sensor units in the vehicle. The light distribution is transformed into perspective view of an observation position in an environment of the vehicle such that another light distribution is retained. Visibility measurements of the vehicle are determined from the latter light distribution. The transformation is based on simulation of light propagation in a vehicle system. An independent claim is also included for a system for determining visibility of a vehicle.