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Methods for mobile image capture of vehicle identification numbers in a non-document

  • US 9,773,186 B2
  • Filed: 03/17/2014
  • Issued: 09/26/2017
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable medium containing instructions which, when executed by a computer, perform a process comprising:

  • receiving an image which includes a vehicle identification number (VIN);

    making a color assumption with respect to the VIN;

    preprocessing the image based on the color assumption;

    segmenting the image to identify candidate text strings that may include the VIN;

    performing an optical character recognition (OCR) using an OCR engine on the candidate text strings;

    validating the candidate text strings;

    if a candidate test string is validated, outputting a confirmed VIN value based on the validated candidate test string; and

    if a candidate test string fails the validation, post-processing the failed candidate text string, which includes using a different OCR engine to re-recognize some or all characters in the failed candidate test string.

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