Patent Document ID: 20100155464
Application ID: 12628425
Patent Status: 0

Claim One:
1. A computer implemented method of decoding a QR code having two initially detected finder patterns, the computer including at least a processor for executing the method and an associated memory in which an image including the finder patterns is stored, said method comprising the steps of: (a) forming a pattern matching template based on characteristics of the detected finder patterns; (b) determining at least one candidate region about the detected finder patterns, the candidate region being based at least on the relative positions of the detected finder patterns in the QR code; (c) locating a previously undetected third finder pattern of the QR code in the at least one candidate region by correlating content of the candidate region with the pattern matching template; and (d) decoding the QR code with each of the two initially detected finder patterns and the third finder pattern.