continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6385/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :21/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : COLOR FORM DROPOUT USING DYNAMIC GEOMETRIC SOLID THRESHOLDING
(51) International classification :G06K 9/00 (71)Name of Applicant :
(31) Priority Document No :11/341,305
1)LOCKHEED MARTIN CORPORATION
(32) Priority Date :27/01/2006
Address of Applicant :6801 ROCKLEDGE
(33) Name of priority country :U.S.A.
DRIVE,BETHESDA,MARYLAND 20817,U.S.A. U.S.A.
(86) International Application No :PCT/US2007/061069 (72)Name of Inventor :
Filing Date
:25/01/2007
1)WITHUM,TIMOTHY O.
(87) International Publication No :WO2007/090036 2)KOPCHIK, KURT P.
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)HIGHLAND, FREDERIC
4)HEBBAL, SUPREETH
5)DASCH, SUMMER C
(62) Divisional to Application Number :NA
6)GRAHAM, STEPHANIE M
Filing Date
:NA
(57) Abstract :
Dropping out of color form backgrounds from images of completed forms to obtain color form dropout images retaining only the
respondent information. In one embodiment, a color form image processing method (100) includes retrieving (102) a template image,
retrieving (104) a respondent image, registering (106) the images against one another to establish correspondence between pixels in
the respondent and template images, dilating (108) the template image, and performing (110) a color form dropout including
comparing (112) corresponding pixels in the respondent and dilated template images, and determining (114) whether to keep
corresponding pixels by applying (116) a geometric solid threshold comparison to assess both color similarity and relative darkness,
and removing (118) pixels from the respondent image based on such comparison.
No. of Pages : 28 No. of Claims : 23
The Patent Office Journal 24/10/2008 25851