LICENSE PLATE RECOGNITION SYSTEM AND LOCATION FORECASTING

• US 20140376778A1
• Filed: 06/25/2013
• Published: 12/25/2014
• Est. Priority Date: 06/25/2013
• Status: Abandoned Application

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Muetzel, Ronald, Roesch, Thomas
• Application Number:
  US13/926,349
• Publication Number:
  US 20140376778A1
• Time in Patent Office: Days
• US Class Current: 382/105
• CPC Class Codes: B60R 25/305 using a camera
• CPC Class Codes: G06V 20/625 License plates
• CPC Class Codes: G06V 20/63 Scene text, e.g. street names
• CPC Class Codes: G08G 1/0175 by photographing vehicles, e.g. when violating traffic rules

Abstract

A license plate recognition system may include a vehicle and an analysis server. The vehicle may include an image capture device and an on-board device. The image capture device may capture a vehicle image that includes a license plate of a target vehicle. The on-board device may capture various vehicle data of the target vehicle, such as speed, direction, and location. The analysis server may receive and process the vehicle image and/or vehicle data to determine whether alert criteria are met, e.g., if the target vehicle is stolen. If so, the analysis server may send an alert indication to the vehicle that may include a possible current location of the target vehicle.

Claims

1. A vehicle comprising:

an image capture device integrated in the vehicle operable to capture a target vehicle image that includes a license plate of a target vehicle; and

an on-board device integrated in the vehicle operable to;

capture target vehicle data comprising a speed of the target vehicle;

send the target vehicle image and the target vehicle data to an external processing system; and

receive an alert indication from the external processing system when the license plate of the target vehicle meets a predetermined alert criteria.

2. The vehicle of claim 1, where the target vehicle data further comprises a location of the target vehicle.

3. The vehicle of claim 1, where the target vehicle data further comprises a travel direction of the target vehicle.

4. The vehicle of claim 1, where the alert indication indicates a possible current location of the target vehicle.

5. The vehicle of claim 1, where the alert indication indicates multiple possible current locations of the target vehicle.

6. The vehicle of claim 1, where the alert indication comprises a license plate string of the target vehicle.

7. The vehicle of claim 1, further comprising a user interface operable to present the alert indication.

8. The vehicle of claim 7, where the user interface is operable to display a map and mark a possible current location of the target vehicle on the map.

9. The vehicle of claim 1, where the on-board device is operable to send the target vehicle image, the target vehicle data, or both to the external processing system through a wireless communication.

10. The vehicle of claim 1, where the predetermined alert criteria is met when the license plate of the target vehicle matches a stolen vehicle plate number.

11. A license plate recognition system comprising:

recognition logic operable to;

receive a target vehicle image that includes a license plate of a target vehicle;

extract a license plate string from the target vehicle image; and

determine whether the extracted license plate string satisfies a predetermined alert criteria; and

when the extracted license plate satisfies the predetermined alert criteria;

send an alert indication to a destination vehicle.

12. The license plate recognition system of claim 11, where the recognition logic is operable to determine the predetermined alert criteria is satisfied when the extracted license plate string matches a stolen vehicle plate number.

13. The license plate recognition system of claim 11, where the recognition logic is further operable to:

receive vehicle data with respect to the target vehicle;

determine a possible current location of the target vehicle based on the received vehicle data; and

send the possible current location to the destination vehicle as part of the alert indication.

14. The license plate recognition system of claim 13, where vehicle data comprises a speed of the target vehicle.

15. The license plate recognition system of claim 13, where vehicle data comprises a travel direction of the target vehicle.

16. The license plate recognition system of claim 13, where recognition logic is operable to determine the possible current location of the target vehicle further based on a possible travel route of the target vehicle.

17. The license plate recognition system of claim 13, where recognition logic is operable to determine the possible current location of the target vehicle further based on an elapsed time since the recognition logic received the vehicle data.

18. The license plate recognition system of claim 13, where the recognition logic is further operable to select the destination vehicle based on the determined possible current location of the target vehicle.

19. A method of license plate recognition, the method comprising:

capturing a target vehicle image that includes a license plate of a target vehicle;

capturing target vehicle data comprising a speed and travel direction of the target vehicle;

sending the target vehicle image and the target vehicle data to an external processing system; and

receiving an alert indication from the external processing system when the license plate of the target vehicle meets a predetermined alert criteria.

20. The method of license plate recognition of claim 19, where receiving the alert indication comprises receiving a possible current location of the target vehicle.