Adaptive headlight beam
A vehicle, headlight system and method of operating the headlight. The headlight system includes a headlight, a sensor configured to obtain an image of an object, and a processor. The processor is configured to determine a projection of the object within the headlight, identify a pixel having a portion thereof within the projection, and turn off the pixel to reduce glare from the headlight at the object.
1 . A method of operating a headlight of a vehicle, comprising:
obtaining an image of an object via a sensor;
determining, via a processor, a projection of the object within the headlight, wherein the headlight includes an array of pixels and a low beam cutoff separating the array into a high beam region and a low beam region;
identifying, via the processor, a pixel having a portion thereof within the projection;
adjusting a height of the low beam cutoff to place the projection above the low beam cutoff; and
turning off the pixel, via the processor, to reduce glare from the headlight at the object.
2 . The method of claim 1 , wherein adjusting the height of the low beam cutoff further comprises rotating the headlight along an axis.
3 . The method of claim 1 , wherein turning off the pixel further comprises turning off a vertical pixel and a single-row pixel at a same lateral position of the headlight as the projection.
4 . The method of claim 3 , further comprising determining a vertical gap between a bottom of the projection and a low beam cutoff and turning on the single-row pixel within the vertical gap.
5 . The method of claim 4 , further comprising turning on the single-row pixel within the vertical gap when a distance between the object and the vehicle is greater than a down aim road distance of the headlight and turning off the single-row pixel within the vertical gap when the distance is less than the down aim road distance.
6 . The method of claim 1 , wherein the object comprises a first object and a second object, further comprising determining a first projection for the first object and a second projection for the second object, turning off a first pixel to produce a first non-glare region for the first projection and turning off a second pixel to produce a second non-glare region for the second projection.
7 . The method of claim 1 , wherein the sensor is one of: (i) a separate device from the headlight; and (ii) integrated into the headlight.
8 . A headlight system for a vehicle, comprising:
a sensor configured to obtain an image of an object;
a processor configured to:
determine a projection of the object within a headlight, wherein the headlight includes an array of pixels and a low beam cutoff separating the array into a high beam region and a low beam region;
identify a pixel having a portion thereof within the projection;
adjust a height of the low beam cutoff to place the projection above the low beam cutoff; and
turn off the pixel to reduce glare from the headlight at the object.
9 . The headlight system of claim 8 , wherein the processor is further configured to adjust the height of the low beam cutoff by rotating the headlight along an axis.
10 . The headlight system of claim 8 , wherein the processor is further configured to turn off a vertical pixel and a single-row pixel at a same lateral position of the headlight as the projection.
11 . The headlight system of claim 10 , wherein the processor is further configured to determine a vertical gap between a bottom of the projection and a low beam cutoff and turn on the single-row pixel within the vertical gap.
12 . The headlight system of claim 11 , wherein the processor is further configured to turn on the single-row pixel within the vertical gap when a distance between the object and the vehicle is greater than a down aim road distance of the headlight and turn off the single-row pixel within the vertical gap when the distance is less than the down aim road distance.
13 . The headlight system of claim 8 , wherein the object comprises a first object and a second object and the processor is further configured to determine a first projection for the first object and a second projection for the second object, turn off a first pixel to produce a first non-glare region for the first projection and turn off a second pixel to produce a second non-glare region for the second projection.
14 . The headlight system of claim 8 , wherein the sensor is one of: (i) a separate device from the headlight; and (ii) integrated into the headlight.
15 . A vehicle, comprising:
a headlight;
a sensor configured to obtain an image of an object;
a processor configured to:
determine a projection of the object within the headlight, wherein the headlight includes an array of pixels and a low beam cutoff separating the array into a high beam region and a low beam region;
identify a pixel having a portion thereof within the projection;
adjust a height of the low beam cutoff to place the projection above the low beam cutoff; and
turn off the pixel to reduce glare from the headlight at the object.
16 . The vehicle of claim 15 , wherein the processor is further configured to adjust the height of the low beam cutoff by rotating the headlight along an axis.
17 . The vehicle of claim 15 , wherein the processor is further configured to turn off a vertical pixel and a single-row pixel at a same lateral position of the headlight as the projection.
18 . The vehicle of claim 17 , wherein the processor is further configured to determine a vertical gap between a bottom of the projection and a low beam cutoff and turn on the single-row pixel within the vertical gap when a distance between the object and the vehicle is greater than a down aim road distance of the headlight.
19 . The vehicle of claim 15 , wherein the object comprises a first object and a second object and the processor is further configured to determine a first projection for the first object and a second projection for the second object, turn off a first pixel to produce a first non-glare region for the first projection and turn off a second pixel to produce a second non-glare region for the second projection.
20 . The vehicle of claim 15 , wherein the sensor is one of: (i) a separate device from the headlight; and (ii) integrated into the headlight.