Patent ID: 9372112
Filing Date: 2016-06-21
CPC Classification: B60Q,G01J,G08G

Claim Text:
1. A traveling environment detection device, comprising: an image obtaining unit obtaining captured images of an outside of a vehicle, the images being captured at different times; a parameter extracting unit extracting a parameter from the captured images, the parameter being a parameter relating to brightness of a road surface of a road where the vehicle is traveling, the parameter extracting unit extracting, as the parameter relating to brightness of a road surface, time rate of change in luminance of road surface portions in the captured images; a traveling environment estimating unit estimating a traveling environment of the vehicle on the basis of the parameter; a vehicle light source information obtaining unit obtaining vehicle light source information for detecting a light source of a vehicle, the vehicle light source information depending on the estimated traveling environment; a vehicle light source detecting unit detecting the light source of a vehicle from the captured images on the basis of the vehicle light source information depending on the traveling environment; and a lighting area change unit changing a lighting area of a headlight such that the lighting area is out of the light source of a vehicle, when the vehicle light source detecting unit has detected the light source of a vehicle, wherein the vehicle light source detecting unit includes: the vehicle light source information obtaining unit includes a probability changing unit changing the relation between the positions in the captured images and the probability of being the light source of a vehicle in the probability information, depending on the estimated traveling environment.