| 摘要 |
A method of analysing an image of a road along which a vehicle is travelling, comprises capturing an image of the road with an image capture apparatus on the vehicle and having a field of view, the image capture apparatus having a first area of the field of view over which the image capture apparatus is responsive preferentially to light of a first polarisation and a second area of the field of view over which the image capture apparatus has a different response to polarised light; determining the change in intensity of a feature in the captured image between the first and second areas; and determining from the change in intensity of the feature a parameter of the feature. By measuring a difference in intensity of the light reflected from the feature from areas of the field of view having different responses to polarised light, information relating to the orientation of the feature can be determined, particularly if the features is a lane marking or not. |
