Systems And Methods For Locating Characters On A Document
AssigneeDe La Rue North America Inc.
InventorsAnand Prasad Chinnaswamy, Shiju Poovakurussi Kizhakekara, Rakesh Simpi, Karguvel Rajan Ramachandran
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Abstract
Systems and methods for locating characters on a document are provided. In one embodiment, a method for locating characters on a document includes receiving an image of a document, identifying a set of character candidate forms in the image based on image intensity data, identifying a set of characters from the set of character candidate forms based on spatial characteristics of the set of character candidate forms, and outputting a location of the set of characters.
Claims22
A method for locating characters on a document, the method comprising:
- receiving an image of a document;
- identifying a set of character candidate forms in the image based on image intensity data;
- identifying a set of characters from the set of character candidate forms based on spatial characteristics of the set of character candidate forms;
- and
- outputting a location of the set of characters.
A method for locating a serial number on a banknote, the method comprising:
- receiving an image of a banknote;
- identifying a set of character candidate forms in the image based on image intensity data;
- identifying a serial number from the set of character candidate forms based on spatial characteristics of the set of character candidate forms;
- and
- outputting a location of the serial number.
A document character locator implemented by a computing device, comprising:
- a composite image generator to receive an image of a document and convert the image into a composite image of the document;
- an intensity thresholding module to identify a set of character candidate forms in the composite image based on image intensity data;
- a spatial analysis engine to identify a set of characters from the set of character candidate forms based on spatial characteristics of the set of character candidate forms;
- and
- an anchor module to output a location of the set of characters.
Dependencies are inferred from the claim text.