Methods For Vehicle Identification And Specification Recall With Localization Optimization For License Plate Recognition

• US 20170140237A1
• Filed: 11/09/2016
• Published: 05/18/2017
• Est. Priority Date: 11/13/2015
• Status: Abandoned Application

• Current Assignee: Hunter Engineering Company
• Original Assignee: Hunter Engineering Company
• Inventors: Strege, Timothy A., Voeller, David A., Eberhart, Daniel G., Colarelli, III, Nicholas J.
• Application Number:
  US15/347,526
• Publication Number:
  US 20170140237A1
• Time in Patent Office: Days
• CPC Class Codes: G06V 10/987 with the intervention of an operator
• CPC Class Codes: G06V 20/625 License plates
• CPC Class Codes: G06V 20/63 Scene text, e.g. street names

Abstract

A procedure for acquiring and utilizing vehicle license plate image data during a vehicle service or inspection process. Acquired license plate images are evaluated to identify visible license plate features including license plate characters and a license plate jurisdiction. The information is communicated to a data archive system which is configured to employ a set of jurisdiction localization rules to match a specific vehicle identification number to the license plate data. A compilation of the identified and matched data is communicated to a vehicle service system or inspection system, for utilization in a vehicle service procedure or inspection process.

Claims

1. A method for capturing and utilizing vehicle license plate data during a vehicle service or inspection process, comprising:

acquiring at least one image of a vehicle upon entry of the vehicle into a detection region of at least one imaging sensor coupled to a license plate recognition system;

communicating said acquired at least one image from said at least one imaging sensor to said license plate recognition system;

evaluating said acquired at least one image to identify visible license plate features including at least one alpha-numeric character;

utilizing said identified license plate features to retrieve, from a data repository, vehicle identifying data associated with said identified license plate features; and

utilizing said vehicle identifying data to retrieve, from a record repository, at least one of a customer record, a vehicle record, or a vehicle specification.

2. The method of claim 1 further including the step of generating an output containing at least said retrieved vehicle identifying data, and at least one of a portion of said retrieved customer record or said retrieved vehicle specification.

3. The method of claim 1 wherein said visible license plate features include a jurisdiction identifier.

4. The method of claim 1 wherein said retrieved vehicle identifying data includes a vehicle identification number associated with said identified license plate features.

5. The method of claim 1 further including the step of communicating said identified license plate features to a vehicle service or inspection system, said vehicle service or inspection system retrieving said vehicle identifying data, and retrieving said at least one customer record, vehicle record, or vehicle specification.

6. The method of claim 1 wherein acquiring at least one image of said vehicle includes acquiring at least a first image of said vehicle from a first imaging sensor at a first location and acquiring at least a second image of said vehicle from a second imaging sensor at a second location;

and

wherein said step of evaluating said acquired at least one image includes evaluating said acquired first image to identify visible license plate features including at least one alpha-numeric character, and evaluating said acquired second image to identify visible license plate features including at least one alpha-numeric character.

7. The method of claim 6 further including the step of comparing said identified first and second license plate features for verification of said identified license plate features prior to utilizing said identified license plate features to retrieve said vehicle identifying data.

8. The method of claim 6 wherein said first location is in front of said vehicle, and said first image includes visible front license plate features, and

wherein said second location is behind said vehicle, and said second image includes visible rear license plate features.

9. The method of claim 6 wherein said first and second imaging sensors are at different distances from said detection region.

10. The method of claim 6 wherein said first and second imaging sensors are disposed at different orientations with respect to said detection region.

11. The method of claim 1 wherein said step of utilizing said identified license plate features includes parsing said at least one alpha-numeric character within said set of license plate features with a character substitution filter to selectively replace at least one alpha-numeric character within said set of license plate features in response a defined set of rules prior to retrieving said vehicle identifying data.

12. The method of claim 1 wherein said retrieved vehicle identifying data includes original equipment tire fitment information.

13. The method of claim 1 wherein said retrieved vehicle identifying data includes at least one vehicle parameter identifying a vehicle make, a vehicle model name, a vehicle sub-model name, a vehicle model year, or a vehicle drive configuration.

14. A vehicle service or inspection system configured to utilizing vehicle license plate data during a vehicle service or inspection process, comprising:

at least one imaging sensor or camera configured to acquire at least one image of a vehicle upon entry of the vehicle into an associated detection region;

a license plate recognition system operatively coupled to said at least one imaging sensor or camera to receive said acquired at least one image, said license plate recognition system configured to evaluate said acquired at least one image to identify visible license plate features including at least one alpha-numeric character;

wherein said license plate recognition system is further configured to convey said identified license plate features to a vehicle service or inspection system;

wherein said vehicle service or inspection system is configured to utilize said identified license plate features to retrieve, from a data repository, vehicle identifying data associated with said identified license plate features; and

wherein said vehicle service or inspection system is further configured to utilize said vehicle identifying data to retrieve, from a record repository, at least one of a customer record, a vehicle record, or a vehicle specification.

15. The system of claim 14 wherein said vehicle service or inspection system evaluates said retrieved vehicle identifying data associated with said license plate features against a set of secondary selection criteria, and wherein said vehicle service or inspection system is configured to retrieve said at least one customer record or vehicle specification from said record repository only in response to said retrieved vehicle identifying data meeting said secondary selection criteria.

16. A method for selectively filtering vehicle identifying data stored in a database and which is cross-referenced to vehicle license plate data containing at least one alpha-numeric character, comprising:

evaluating an image of a vehicle to identify a character set including each alpha-numeric character associated with a license plate on said vehicle;

generating a query to said database to retrieve vehicle identifying data corresponding to said vehicle, said query including said character set, and an associated jurisdictional designation which was not obtained from said evaluation of said image; and

receiving said vehicle identifying data in response to a match within said database of said character set in combination with said associated jurisdictional designation.

17. The method of claim 16 wherein said associated jurisdictional designation is selected based on a geographic location.

18. The method of claim 16 further including receiving a no-match warning in response to a failure of said query to match said character set and said associated jurisdictional designation with vehicle identifying data stored in said database.

19. The method of claim 18 wherein said associated jurisdictional designation is selected from an ordered set of jurisdictional designations;

responsive to a receipt of a no-match warning from a query, generating a new query to said database to retrieve vehicle identifying data corresponding to said vehicle, said new query including said character set and a next-sequentially selected associated jurisdictional designation selected from said ordered set of associated jurisdictional designations; and

repeating said step of generating a new query for each no-match warning received, until either said vehicle identifying data is received or each associated jurisdictional designation in said ordered set of associated jurisdictional designations has been utilized in a new query.

20. The method of claim 18 wherein responsive to a receipt of a no-match warning from a query, parsing said character set with a character substitution filter to selectively replace at least one alpha-numeric character within said character set in response a defined set of rules;

generating a new query to said database to retrieve vehicle identifying data corresponding to said vehicle, said new query including said parsed character set and said associated jurisdictional designation; and

repeating said step of generating a new query for each no-match warning received, until either said vehicle identifying data is received or each possible character substitution within said defined set of rules has been utilized in a new query.

21. A method for vehicle identification using vehicle license plate data, comprising:

receiving, a set of license plate features associated with a vehicle, said set of license plate features including at least one alpha-numeric character;

selecting, from a set of possible jurisdictions, a jurisdiction for association with said set of license plate features;

utilizing said identified license plate features and said associated jurisdiction to locate within a data repository, vehicle identifying data associated with said identified license plate features;

responsive to a failure to locate said vehicle identifying data within said data repository, repeating said steps of selecting and utilizing, by selecting a previously unselected jurisdiction from said set of possible jurisdictions; and

providing an output, said output being either an indication of failure or an indication of said vehicle identifying data, wherein;

i. said indication of failure is provided in response to selection of each jurisdiction within said set of possible jurisdictions, together with a failure to locate said vehicle identifying data within said data repository, and

ii. said indication of said vehicle identifying data is provided in response to a successful location of said vehicle identifying data within said data repository.

22. The method of claim 21 wherein said set of possible jurisdictions is an ordered set.

23. The method of claim 21 wherein said step of utilizing includes parsing said at least one alpha-numeric character within said set of license plate features with a character substitution filter to selectively replace alpha-numeric characters within said set of license plate features in response a defined set of rules, said character substitution filter selected in accordance with said associated jurisdiction.

24. The method of claim 21 wherein said step of selecting includes evaluating said set of license plate features with a filter associated with at least one jurisdiction;

and

excluding, from said set of possible jurisdictions, each jurisdiction for which said set of license plate features does not pass said associated filter.

25. A method for selectively filtering vehicle identifying data stored in a database and indexed by at least one alpha-numeric character and an associated jurisdiction, comprising:

evaluating an image of a vehicle to identify at least one alpha-numeric character associated with a license plate on said vehicle;

selecting a jurisdiction for association with said license plate;

parsing said at least one alpha-numeric character to apply a set of jurisdiction-specific rules in order to generate an output string of alpha-numeric characters associated with said license plate;

generating a query to said database to retrieve vehicle identifying data corresponding to said vehicle, said query including said output string and said selected jurisdiction; and

receiving said vehicle identifying data in response to a match within said database of said string of alpha-numeric characters and said selected jurisdiction.

26. The method of claim 25 wherein said associated jurisdiction is selected based on proximity to a geographic location.

27. The method of claim 25 further including receiving a no-match warning in response to a failure of said query to match said string and said selected jurisdiction with vehicle identifying data stored in said database.

28. The method of claim 27 wherein said jurisdiction is selected from a set of jurisdictional designations;

and

responsive to a receipt of a no-match warning from said generated query, selecting a new jurisdiction from a set of jurisdictions for association with said license plate and repeating said steps of parsing and generating with said string and said new jurisdiction until either said vehicle identifying data is received or each jurisdiction within said set of jurisdictions has been utilized in a query with said string.

29. A method for selectively filtering vehicle identifying data stored in a database and which is cross-referenced to vehicle license plate data containing at least one alpha-numeric character, comprising:

evaluating an image of a vehicle to establish a representation of alpha-numeric characters and symbols associated with a license plate on said vehicle;

generating a query to said database to retrieve vehicle identifying data corresponding to said vehicle, said query including said representation, and at least one additional selection criteria; and

receiving said vehicle identifying data in response to a match within said database of said representation in combination with each selection additional criteria.

30. The method of claim 29 wherein said at least one additional selection criteria includes at least one jurisdictional designation.

31. The method of claim 29 wherein said at least one additional selection criteria is a vehicle make, a vehicle model, or a vehicle year.

32. The method of claim 29 further including receiving a no-match warning in response to a failure of said query to uniquely match said representation and each additional selection criteria with vehicle identifying data stored in said database.

33. The method of claim 32 wherein responsive to a receipt of a no-match warning from a query, altering said representation by applying error-correction and/or character-substitution logic to said alpha-numeric characters and symbols associated with said license plate generate a new query to said database to retrieve vehicle identifying data corresponding to said vehicle, said new query including said altered representation and said at least one additional selection criteria;

and

repeating said steps of altering said representation and generating a new query for each no-match warning received, until either said vehicle identifying data is received or a new query limit is reached.