Inferential self-registration of imperfect OMR forms
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 11, 2012
Grant Date -
May 7, 2009
app pub date -
Nov 5, 2008
filing date -
Nov 6, 2007
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Abstract
Image data of a zone in a response form that has a plurality of response bubbles in the zone is processed. The image data of the zone has at least one response bubble that is well-formed and at least one response bubble that is not well-formed. Well-formed response bubbles are located in the zone from image data of the zone. The locations of the well-formed response bubbles in the zone are compared to a form template that defines the zone and contains data regarding locations of all expected response bubbles in the zone. It is determined from the comparison whether sufficient information exists to determine that the well-formed response bubbles constitute a specific part of the form template zone. If so, then the well-formed response bubbles are processed from the image data of the zone.
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