METHOD FOR CONTROLLING THE AUTOMATIC SWITCHING OF THE PROJECTOR OF A VEHICLE
First Claim
1. A method for controlling an automatic switching of a projector of a vehicle, in particular of a motor vehicle, from a first lighting mode to a second lighting mode, said method being implemented when said vehicle is driven at night and comprising the following steps:
- acquisition by a black and white sensor of images representing night-time road scenes, extraction from the image zones corresponding to light sources, and discrimination of the type of light sources in accordance with the distribution of the levels of light intensity in said zones.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a method for controlling the automatic switching of the projector of a vehicle, in particular of a motor vehicle, from a first lighting mode to a second lighting mode, the method being implemented when the vehicle is driven at night and including the following steps: acquisition by a black and white sensor of images representing night-time road scenes, extraction from the images of the zones corresponding to light sources, and discrimination of the type of light sources in accordance with the distribution of the levels of light intensity in the zones.
19 Citations
25 Claims
-
1. A method for controlling an automatic switching of a projector of a vehicle, in particular of a motor vehicle, from a first lighting mode to a second lighting mode, said method being implemented when said vehicle is driven at night and comprising the following steps:
-
acquisition by a black and white sensor of images representing night-time road scenes, extraction from the image zones corresponding to light sources, and discrimination of the type of light sources in accordance with the distribution of the levels of light intensity in said zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19)
-
-
15. A device for controlling the automatic switching of the projector of a vehicle, in particular of a motor vehicle, from a first lighting mode to a second lighting mode, said device being activated when said vehicle is driven at night, comprising:
-
means for the acquisition of images representing night-time road scenes, comprising a black and white sensor;
means for the extraction from the images of the zones corresponding to light sources; and
means for the discrimination of the type of light sources in accordance with the distribution of the levels of light intensity in said zones. - View Dependent Claims (16, 17)
-
-
20. A method for automatically switching a headlight from a first lighting mode to a second lighting mode, said method comprising the steps of:
-
sensing an image representing a night-time road scene with a black and white sensor;
extracting from said image at least one zone corresponding to a light source; and
identifying said light source in response to a distribution level of light intensity in said at least one zone;
automatically switching said headlight from said first lighting mode to said second lighting mode in response to said distribution level. - View Dependent Claims (21, 22)
-
-
23. An automatic headlight switching system comprising:
-
a headlight;
a control for controlling an operation of said headlight;
a black and white sensor for sensing an image representing a night-time road scene and generating image data in response thereto;
a processing unit coupled to said black and white sensor for receiving said image data and for extracting from said image at least one zone corresponding to a light source and also for identifying said light source in response to a distribution level of light intensity in said at least one zone; and
said control automatically switching said headlight from said first lighting mode to said second lighting mode in response to said distribution level. - View Dependent Claims (24, 25)
-
Specification