Method and apparatus for recognizing a digitized form,...

Details Method and apparatus for recognizing a digitized form,... Method and apparatus for recognizing a digitized form,...

2005-03-08

2009-02-03

Le, Brian Q (Department: 2624)

Data processing: presentation processing of document, operator i

Presentation processing of document

Form

C715S221000, C715S222000, C715S224000, C715S225000, C715S228000, C382S151000, C382S183000, C382S171000, C382S294000, C382S170000

Reexamination Certificate

active

07487438

ABSTRACT:
Methods and apparatus for comparing blank forms represented in a digital format to digitized filled-in forms are described. Different errors are attributed different weights when attempting to correlate regions of blank and filled-in forms. Foreground pixels in the blank form which are not found in a corresponding portion of a filled-in form are attributed greater error significance than foreground pixels, e.g., pixels which may correspond to added text, found in the filled-in form which correspond to a background pixel value in the blank form. A virtual filled-in form including content, e.g., pixel values, from the filled-in form is generated from the content of the filled-in form and pixel value location mapping information determined from comparing the blank and filled-in forms. Various analysis is performed on a block basis, but in some embodiments the final pixel mapping to the virtual form is performed on a pixel by pixel rather than a block basis.

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