Device for preventing head lamp glare and method for preventing glare using the same

Patent metadata

Field	Value
Publication number	US-2016339768-A1
Application number	US-201514937723-A
Country	US
Kind code	A1
Filing date	Nov 10, 2015
Priority date	May 20, 2015
Publication date	Nov 24, 2016
Grant date	—

Abstract

A method for preventing glare caused by a head lamp of an opposite side vehicle is provided. The method includes detecting a position of the head lamp from an image photographed in a front direction of a vehicle, when a light is detected in front of the vehicle. The detected position of the head lamp is then matched on a head-up display image and a filtering image is generated to block the light of the head lamp using the head-up display image. The filtering image is finally output on a vehicle windshield.

First claim

What is claimed is:

1 . A method for preventing glare by a head lamp of an opposite side vehicle, comprising:
detecting, by a controller, a position of the head lamp from an image photographed in a front direction of a vehicle, when a light is detected in front of the vehicle; matching, by the controller, the detected position of the head lamp on a head-up display image; generating, by the controller, a filtering image to block the light of the head lamp using the head-up display (HUD) image; and outputting, by the controller, the filtering image on a windshield.

2 . The method for preventing glaring by a head lamp of claim 1 , wherein the detecting of the position of the head lamp includes:
photographing, by the controller, the image in front of the vehicle using a camera of a black box or a camera of a Lane Departure Warning System; and recognizing, by the controller, the head lamp from the photographed image.

3 . The method for preventing glaring by a head lamp of claim 2 , wherein the recognizing of the head lamp includes:
recognizing, by the controller, the light as the head lamp when at least two lights having a distance similar to the width of a vehicle are detected.

4 . The method for preventing glaring by a head lamp of claim 1 , wherein the matching of on the HUD image includes:
transforming, by the controller, the position of the head lamp to a coordinate of the head-up display image using distance information between of the head lamp of the opposite side vehicle.

5 . The method for preventing glaring by a head lamp of claim 1 , wherein the generating of the filtering image includes:
generating, by the controller, the filtering image to include a blocking region to block the light of the head lamp.

6 . The method for preventing glaring by a head lamp of claim 1 , further comprising:
terminating, by the controller, the output of the filtering image when the opposite side vehicle has passed.

7 . A device for preventing glaring by a head lamp, comprising:
a head lamp position detection unit configured to detect a position of the head lamp illuminating a light, from an image photographed in a front direction of a vehicle; a coordinate transforming unit configured to transform the detected position of the head lamp to match on a head-up display image; and an output unit configured to generate a filtering image to block the light of the head lamp and output the filtering image on a windshield.

8 . The device for preventing glaring by a head lamp of claim 7 , further comprising:
a controller configured to generate and output of the filter image, and terminate the output of the filtering image when the opposite side vehicle has passed.

9 . The device for preventing glaring by a head lamp of claim 8 , wherein the coordinate transforming unit includes:
a matching unit configured to match the position of the head lamp of opposite side vehicle on the head-up display image using distance information between of the head lamps of the opposite side vehicle.

10 . The device for preventing glaring by a head lamp of claim 9 , wherein the controller is configured to adjust the head-up display image to output at an area that the light of the head lamp is illuminated on the windshield.

11 . The device for preventing glaring by a head lamp of claim 10 , wherein the output unit includes:
a filtering image generating unit configured to generate a filtering image overlapping with the head-up display image and forming a blocking region to block the light of the head lamp.

12 . The device for preventing glaring by a head lamp of claim 11 , wherein the filtering image generating unit is configured to generate a black image to block the light of the head lamp at the blocking region.

13 . A non-transitory computer readable medium containing program instructions executed by a controller to prevent glare by a head lamp of an opposite side vehicle, the computer readable medium comprising:
program instructions that detect a position of the head lamp from an image photographed in a front direction of a vehicle, when a light is detected in front of the vehicle; program instructions that match the detected position of the head lamp on a head-up display image; program instructions that generate a filtering image to block the light of the head lamp using the head-up display (HUD) image; and program instructions that output the filtering image on a windshield.

14 . The non-transitory computer readable medium of claim 13 , further comprising:
program instructions that photograph the image in front of the vehicle using a camera of a black box or a camera of a Lane Departure Warning System; and program instructions that recognize the head lamp from the photographed image.

15 . The non-transitory computer readable medium of claim 14 , further comprising:
program instructions that recognize the light as the head lamp when at least two lights having a distance similar to the width of a vehicle is detected.

16 . The non-transitory computer readable medium of claim 13 , further comprising:
program instructions that transform the position of the head lamp to a coordinate of the head-up display image using distance information between of the head lamp of the opposite side vehicle.

17 . The non-transitory computer readable medium of claim 13 , further comprising:
program instructions that generate the filtering image to include a blocking region to block the light of the head lamp.

18 . The non-transitory computer readable medium of claim 13 , further comprising:
program instructions that terminate the output of the filtering image when the opposite side vehicle has passed.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Ro Heejin

Classifications

• G02B27/0101

  characterised by optical features (G02B27/0172 takes precedence) · CPC title

• G02B2027/0138

  comprising image capture systems, e.g. camera · CPC title

• G02B2027/014

  comprising information/image processing systems · CPC title

• G06T5/20

  using local operators · CPC title

• G06K9/00825

  Physics · mapped topic