Method for determining information about relative velocity between e.g. passenger car and pedestrian, involves determining change of frequency of light to determine information about relative velocity between vehicle and object

摘要

The method involves determining change of frequency of light (120) emitted from a light source i.e. headlight (110), where the light represents light radiated of an object. Information such as alternation in relative velocity between a vehicle (100) and the object is determined based on the frequency change of the light. A determination is made whether a light signal is combined with a reference signal of the light to determine the change of the light frequency, where the light signal represents the light received by a light detecting device e.g. camera (112) and light sensor, of the vehicle. The light detecting device is designed as a light sensor and a camera. Independent claims are also included for the following: (1) a device for determining information about relative velocity between a vehicle and an object (2) a computer program product comprising instructions for determining information about relative velocity between a vehicle and an object.