Patent Document ID: 8494273
Application ID: 12876145

Base Claim:
1. A computer implemented method for performing adaptive optical character recognition on a document with distorted characters, the method comprising: providing a group of images of candidate characters; receiving a document in an image format; segmenting the document so as to provide a sub-image of a segmented character; and for one or more of the candidate characters: performing a distortion-correction transformation on the segmented character, so as to modify the segmented character in the sub-image into a transformed character more closely resembling the candidate character; comparing the transformed segmented character to the candidate character so as to calculate a comparison score; analyzing the distortion-correction transformation so as to assign the transformation a distortion score; and determining whether to identify the segmented character with the candidate character, responsively to both the comparison score and the distortion score.

---

Claim 4:
4. A method as claimed in claim 1 , wherein calculating the comparison score comprises calculating a difference between the transformed segmented character and the candidate character.