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

• US 9,630,477 B2
• Filed: 11/10/2015
• Issued: 04/25/2017
• Est. Priority Date: 05/20/2015
• Status: Expired due to Fees

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Ro, HeeJin
• Primary Examiner(s): PATEL, KANJIBHAI B
• Application Number:
  US14/937,723
• Publication Number:
  US 20160339768A1
• Time in Patent Office: 532 Days
• Field of Search: 382260, 382275
• CPC Class Codes: B60J 3/04 adjustable in transparency
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G06T 5/20 using local operators
• CPC Class Codes: G06V 20/584 of vehicle lights or traffic lights

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.

Claims

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 the photographed image with 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 the detected position on the photographed image with 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 photographed image with the head-up display image using distance information between 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 the photographed image with 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.