Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

User Selectable Forms Reco Accuracy

IP.com Disclosure Number: IPCOM000111798D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Betts, TS: AUTHOR [+6]

Abstract

Methods for Forms Definition, Forms Recognition based on line structure analysis, and a method for form verification and registration are documented within [*].

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

User Selectable Forms Reco Accuracy

      Methods for Forms Definition, Forms Recognition based on line
structure analysis, and a method for form verification and
registration are documented within [*].

      As described above, the method of form verification ensures
that the incoming form was correctly recognized by comparing all of
the horizontal and vertical lines within the incoming form with the
fingerprint of the master form defined within the Forms Library.
This method ensures that all of the lines in the master form's
fingerprint appear on the scanned image and provides the most
accurate calculation of form skew and offset, resulting in the most
accurate adjustment of field coordinates and a reduction in character
recognition errors.  Using total verification, the program can
compensate for up to +=5 degrees of form skew, and any amount of form
offset if the entire image of the data form appears.  It does,
however, require processing time which may decrease the throughput of
forms during the batch scanning and forms processing step.  In order
to provide ImagePlus* users the ability to process forms that may be
missing form lines, or forms that may exhibit up to +=5 degrees of
form skew, and to allow users the option to optimize their forms
processing performance based on the quality of the input forms, the
program provides four types of form verification.  The four options
are described in order of decreasing performance (speed) and
increasing accuracy of form skew and offset calculations.

1.  No verification.  Using this method, the program does not verify
    the selected form and does not make any corrections for skew and
    offset.  This method should be used only when there is a high
    degree of confidence in the scanner being used (for example, the
    scanner provides automatic thresholding of scanned images, and
    there is very little skew o...