发明名称 |
COLOR FORM DROPOUT USING DYNAMIC GEOMETRIC SOLID THRESHOLDING |
摘要 |
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.
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申请公布号 |
CA2637150(C) |
申请公布日期 |
2012.07.03 |
申请号 |
CA20072637150 |
申请日期 |
2007.01.25 |
申请人 |
LOCKHEED MARTIN CORPORATION |
发明人 |
WITHUM, TIMOTHY O.;KOPCHIK, KURT P.;HIGHLAND, FREDERIC;HEBBAL, SUPREETH;DASCH, SUMMER C.;GRAHAM, STEPHANIE M. |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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地址 |
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