Vehicle mirror adjustment method and system

• US 8,926,105 B2
• Filed: 06/22/2009
• Issued: 01/06/2015
• Est. Priority Date: 06/23/2008
• Status: Active Grant

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Verheyden, Karl Frans Mario
• Primary Examiner(s): Shafer, Ricky D
• Application Number:
  US13/001,011
• Publication Number:
  US 20110122520A1
• Time in Patent Office: 2,024 Days
• Field of Search: 359/843, 359/865, 359/872, 359/900, 348/143, 348/148, 382/115, 382/117, 701/49
• US Class Current: 359/843
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/0607 with remote position control adjustment
• CPC Class Codes: B60R 1/062 with remote control for adjusting position B60R1/0607 takes precedence
• CPC Class Codes: B60R 2300/105 using multiple cameras
• CPC Class Codes: Y10S 359/90 Methods

Abstract

The present invention relates to a method and system of automatically adjusting a mirror (14, 16, 18) in a vehicle (10) to provide a driver (1) with an optimized rear view. A camera (24, 26, 28) is provided that is directed at the adjustable mirror (14, 16, 18). A camera capture area (60) is defined in the adjustable mirror (14, 16, 18), and the mirror (14, 16, 18) is automatically adjusted until the eyes (50) of the driver (1) are captured by the camera (24, 26, 28) within the capture area (60).

Claims

1. A method of automatically adjusting a mirror in a vehicle to provide a driver with an optimized rear view, the method comprising:

providing a camera directed at the mirror;

defining a camera capture area in the mirror; and

adjusting the mirror until both eyes of the driver are captured by the camera within the camera capture area, wherein an eye position of the driver is correlated with the optimized rear view;

wherein the mirror is located inside the vehicle;

defining an optimal position of a border of the mirror in a further capture area of the camera;

detecting the border of the mirror; and

adjusting the mirror to bring the border in the defined optimal position.

2. A method according to claim 1, wherein the step of defining the camera capture area further comprises:

manually adjusting the mirror;

detecting, with said camera, a position of both eyes of the driver in the manually adjusted mirror; and

defining the camera capture area around the detected position of both eyes of the driver.

3. The method of claim 2, further comprising:

storing the defined camera capture area in a memory.

4. The method according to claim 1, wherein the adjusting step comprises repeating the steps of adjusting the mirror and checking if both eyes of the driver are within the camera capture area until both eyes are captured within the camera capture area.

5. The method according to claim 1, wherein said adjusting step is executed when the driver is looking into the mirror.

6. The method of claim 1, wherein the camera capture area is predefined.

7. The method of claim 1, further comprising:

generating a mirror adjustment control signal from displacement of both eyes relative to the camera capture area.

8. The method of claim 1, further comprising:

storing the optimal position of the border in a memory.

9. A mirror adjustment system comprising:

a camera having an output;

a processor having an input coupled to the camera output, said processor comprising object recognition algorithms for detecting both eyes of a driver in a capture area of an adjustable mirror, detecting a border of the adjustable mirror with said camera, and having an output for providing a signal for adjusting the adjustable mirror in response to said object recognition algorithms, wherein an eye position of the driver is directly correlated with an optimized rear view; and

wherein the adjustable mirror is a mirror internal to the vehicle, and the processor is configured to define an optimal position of said border in the capture area of the camera, detect the border of the adjustable mirror, and adjust the adjustable mirror to bring the border in the defined optimal position.

10. The mirror adjustment system according to claim 9, wherein the processor is configured to define the capture area in response to a manual adjustment of the adjustable mirror.

11. The mirror adjustment system of claim 10, wherein the defined capture area is stored in a memory.

12. The mirror adjustment system according to claim 9, wherein the processor is responsive to the driver looking into the vehicle internal mirror.

13. A vehicle comprising:

the mirror adjustment system according to claim 9, wherein the camera is directed at the adjustable mirror, and the adjustable mirror is coupled to the output of the processor.

14. The vehicle according to claim 13, wherein the vehicle comprises a plurality of adjustable mirrors and the mirror adjustment system comprises a respective camera for each adjustable mirror.

15. The mirror adjustment system of claim 9, wherein the capture area is predefined.

16. The mirror adjustment system of claim 9, wherein a mirror adjustment control signal is generated from displacement of both eyes relative to the capture area.