HEADLIGHT CONTROL DEVICE
First Claim
1. A headlight control device that automatically switches a light distribution pattern of a headlight for illumination ahead of a vehicle, the headlight control device comprising:
- an imager that sequentially takes images of a view ahead of the vehicle in a predetermined frame rate;
an another-vehicle recognizer that recognizes a light source of another vehicle from each of the images sequentially taken by the imager;
a light distribution controller that switches the light distribution pattern according to a recognition result of the another-vehicle recognizer; and
a signal provider that provides a signal to illumination light of the headlight by causing the luminance of the headlight to change in a predetermined cycle,wherein the another-vehicle recognizer recognizes, as reflected light of the headlight of the vehicle, a light source which is present within the image and of which luminance change is substantially similar to a luminance change of the signal.
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Accused Products
Abstract
A headlight control device automatically switches a light distribution pattern of a headlight for illumination ahead of a vehicle. The headlight control device including an imager that sequentially takes images of a view ahead of the vehicle in a predetermined frame rate, an another-vehicle recognizer that recognizes a light source of another vehicle from each of the images sequentially taken by the imager, a light distribution controller that switches the light distribution pattern according to a recognition result of the another-vehicle recognizer, and a signal provider that provides a signal to illumination light of the headlight by causing the luminance of the headlight to change in a predetermined cycle. The another-vehicle recognizer recognizes, as reflected light of the headlight of the vehicle, a light source which is present within the image and of which luminance change is substantially similar to a luminance change of the signal.
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Citations
8 Claims
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1. A headlight control device that automatically switches a light distribution pattern of a headlight for illumination ahead of a vehicle, the headlight control device comprising:
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an imager that sequentially takes images of a view ahead of the vehicle in a predetermined frame rate; an another-vehicle recognizer that recognizes a light source of another vehicle from each of the images sequentially taken by the imager; a light distribution controller that switches the light distribution pattern according to a recognition result of the another-vehicle recognizer; and a signal provider that provides a signal to illumination light of the headlight by causing the luminance of the headlight to change in a predetermined cycle, wherein the another-vehicle recognizer recognizes, as reflected light of the headlight of the vehicle, a light source which is present within the image and of which luminance change is substantially similar to a luminance change of the signal. - View Dependent Claims (3, 5, 7)
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2. A headlight control device that automatically switches a light distribution pattern of a headlight for illumination ahead of a vehicle, the headlight control device comprising:
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an imager that sequentially takes images of a view ahead of the vehicle in a predetermined frame rate; an another-vehicle recognizer that recognizes a light source of another vehicle from each of the images sequentially taken by the imager; a light distribution controller that switches the light distribution pattern according to a recognition result of the another-vehicle recognizer; and a luminance changer to change the luminance of the headlight in a predetermined cycle, wherein the another-vehicle recognizer recognizes, as reflected light of the headlight of the vehicle, a light source which is present within the image and of which luminance changes in a cycle substantially identical to a cycle of a luminance change of the headlight of the vehicle. - View Dependent Claims (4, 6, 8)
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Specification