Automatic fingerprint generation

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You can add a function to your application to generate fingerprints automatically from unrecognized pages.

You can add automatic fingerprint generation function to the Verify task so that an operator can complete the task. However, you can route a document with unidentified pages to a supervisor for fingerprint generation. By either method, the fingerprint and recognition zones are saved and are used the next time that you encounter a page of the same type.

The following are the basic steps for generating fingerprints automatically:
  • Identify the page type, either manually or by using a text-based identification technique.
  • Display the page to an operator and have the operator define the recognition zones.
  • Use the CreateFingerprint action to create a new fingerprint file from the current page image.
  • Use the SetFingerprint action to set the class and type for the new fingerprint.
  • Use the iloc_SetZones action to add the recognition zone position information to the document hierarchy.

Fingerprints use the following actions:

Library Action Description
AutoDoc CreateFingerprint Creates a fingerprint from the current page. The fingerprint consists of two files: the image (TIFF) file and the fingerprint processing (CCO) file.
AutoDoc SetFingerprint Sets the new fingerprint's class and type.
Intellocate iloc_SetZones Writes the recognition zone coordinates from the current page data file to the Position properties of the corresponding field objects in the document hierarchy XML file.

For details about configuring the TravelDocs application to generate fingerprints automatically, see the topic Creating the AutoFingerprint ruleset.