IBM Datacap, Version 8.1            

Pattern Matching

You can use Taskmaster pattern matching to identify pages and adjust misaligned or distorted images.

Standard fingerprint matching can compensate for minor page misalignment, but the offsets it can handle are small. If an incoming page is misaligned relative to the fingerprint, Taskmaster might not be able to identify the page. If Taskmaster does identify the page successfully, recognition might fail if the fields are not registered accurately. This issue is most problematic if the page contains OMR or hand print boxed data. But it can happen with any page, especially if the image is distorted during copying, scanning, or faxing.

Pattern matching actions use reference patterns, or anchor objects, that you define on the page fingerprints. The actions try to match those patterns to regions on the runtime pages. Pattern matching techniques that are available can use:

Pattern matching can be used to update the TravelDocs application to handle misaligned pages.



Feedback

Last updated: November 2013
dcadg372.htm

© Copyright IBM Corporation 2013.