System and method for providing guidance information to a driver of a vehicle

• US 8,988,525 B2
• Filed: 08/27/2009
• Issued: 03/24/2015
• Est. Priority Date: 08/27/2009
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Thompson, Justin, Rottner, Gunter, Latysh, Alexander
• Primary Examiner(s): Dailey, Thomas
• Assistant Examiner(s): TRAN, NAM T
• Application Number:
  US12/548,639
• Publication Number:
  US 20110050886A1
• Time in Patent Office: 2,035 Days
• Field of Search: None
• US Class Current: 348/148
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 1/28 with an adjustable field of view
• CPC Class Codes: B60R 2300/301 combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
• CPC Class Codes: B60R 2300/304 using merged images, e.g. merging camera image with stored images
• CPC Class Codes: B60R 2300/306 using a re-scaling of images
• CPC Class Codes: G01S 13/86 Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• CPC Class Codes: G01S 13/867 Combination of radar systems with cameras
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 2013/93272 in the back of the vehicles
• CPC Class Codes: G01S 2013/93275 in the bumper area

Abstract

A system for providing guidance information to a driver of a vehicle. In one implementation, the system includes an image capture device and an object sensor attached to the vehicle. The image capture device acquires an image of the vicinity of the vehicle. The object sensor is configured to detect an object near the vehicle. A processing unit processes the acquired image from the image capture device to produce an output image. The processing of the acquired image is based on information obtained from the object sensor. An image display unit is connected to the processing unit and displays the output image produced by the central processing unit.

Claims

1. A system for providing guidance information to a driver of a vehicle, comprising:

an image capture device configured to acquire an image of the vicinity of the vehicle;

an object sensor configured to detect an object near the vehicle and determine a distance between the object and the vehicle;

a processing unit connected to the image capture device and to the object sensor, the processing unit configured to produce a simulated image that appears as if it was captured from a simulated image capture device located directly above the vehicle, by orthogonally projecting the acquired image and combine the simulated image with the acquired image in a proportion and having a simulated angle of observation that is determined by the distance between the object and the vehicle to produce an output image that appears to have been taken by an image capture device in a direction that is between that of the actual image capture device and the simulated image capture device; and

an image display unit connected to the processing unit and configured to display the output image produced by the processing unit.

2. The system of claim 1, wherein the processing of the acquired images by the central processing unit is performed continuously based on the information obtained from the object sensor.

3. The system of claim 1, wherein the image capture device is attached to the rear of the vehicle and includes a wide-angle lens.

4. The system of claim 1, wherein the object sensor comprises an ultrasonic-based object sensor.

5. The system of claim 1, wherein the proportion of the simulated image increases as the distance between the object and the vehicle decreases.

6. The system of claim 1, wherein the proportion is determined using a lookup table.

7. The system of claim 1, wherein the simulated image and the acquired image are combined using morphing techniques.

8. A method of providing guidance information to a driver of a vehicle, comprising:

obtaining an acquired image from an image capture device attached to the vehicle;

detecting a distance between an object and the vehicle using an object sensor attached to the vehicle;

processing the acquired image using a central processing unit associated with the vehicle to produce an output image, wherein processing of the acquired image comprises producing a simulated image that appears as if it was captured from a simulated image capture device located directly above the vehicle, by orthogonally projecting the acquired image and combining the simulated image with the acquired image in a proportion and having a simulated angle of observation that is determined by the distance between the object and the vehicle that appears to have been taken by an image capture device in a direction that is between that of the actual image capture device and the simulated image capture device; and

displaying the output image produced by the central processing unit on an image display unit mounted in the vehicle.

9. The method of claim 8, wherein the processing of the acquired images by the central processing unit is performed continuously based on the information obtained from the object sensor.

10. The method of claim 8, wherein the image capture device is attached to the rear of the vehicle and includes a wide-angle lens.

11. The method of claim 8, wherein the object sensor comprises an ultrasonic-based object sensor.

12. The method of claim 8, wherein the proportion of the simulated image increases as the distance between the object and the vehicle decreases.

13. The method of claim 8, wherein the proportion is determined using a lookup table.

14. The method of claim 8, wherein combining the simulated image with the acquired image comprises combining the simulated image with the acquired image using morphing techniques.